Covestro Intellectual Property GmbH & Co. KG

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C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines 81
C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic 75
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C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic 61
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01 - Chemical and biological materials for industrial, scientific and agricultural use 60
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1.

METHOD AND ELECTROLYSIS DEVICE FOR THE PRODUCTION OF CHLORINE, CARBON MONOXIDE AND OPTIONALLY HYDROGEN

      
Application Number 17766266
Status Pending
Filing Date 2020-10-07
First Publication Date 2024-03-14
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Bulan, Andreas
  • Kintrup, Juergen
  • Lueken, Alexander

Abstract

The invention relates to a method and an electrolysis device for the production of chlorine, carbon monoxide and optionally hydrogen via the electrochemical conversion of carbon dioxide and alkali chloride solution, wherein the carbon dioxide from a carbon dioxide gas source (55) is electrochemically reduced at a gas diffusion electrode, designed as a cathode (11), in an aqueous alkali-chloride-containing solution as the catholyte (17), and chlorine is simultaneously anodically generated from an aqueous alkali-chloride-containing solution as the anolyte (15a).

IPC Classes  ?

  • C25B 1/23 - Carbon monoxide or syngas
  • C25B 1/02 - Hydrogen or oxygen
  • C25B 1/26 - Chlorine; Compounds thereof
  • C25B 11/032 - Gas diffusion electrodes
  • C25B 11/081 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the element being a noble metal
  • C25B 15/08 - Supplying or removing reactants or electrolytes; Regeneration of electrolytes

2.

METHOD FOR PRODUCING TRIARYLORGANOBORATES

      
Application Number 16950901
Status Pending
Filing Date 2020-11-17
First Publication Date 2024-01-04
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Rölle, Thomas
  • Berneth, Horst
  • Hönel, Dennis
  • Bruder, Friedrich-Karl
  • Kintrup, Jürgen

Abstract

The invention relates to a process for preparing triaryl organo borates proceeding from organoboronic esters in the presence of an n-valent cation 1/n Kn+, comprising the anhydrous workup of the reaction mixture and the use of the triaryl organoborates obtained as co-initiator in photopolymer formulations, holographic media and holograms.

IPC Classes  ?

  • C07F 5/02 - Boron compounds
  • C07C 211/63 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
  • C07C 211/64 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to carbon atoms of six-membered aromatic rings
  • C07C 217/08 - Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted the oxygen atom of the etherified hydroxy group being further bound to an acyclic carbon atom
  • C07C 219/10 - Compounds containing amino and esterified hydroxy groups bound to the same carbon skeleton having esterified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having at least one of the hydroxy groups esterified by a carboxylic acid having the esterifying carboxyl group bound to an acyclic carbon atom of a carbon skeleton containing rings
  • C07C 219/28 - Compounds containing amino and esterified hydroxy groups bound to the same carbon skeleton having esterified hydroxy groups bound to carbon atoms of at least one six-membered aromatic ring and amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton having amino groups bound to acyclic carbon atoms of the carbon skeleton
  • C07C 219/30 - Compounds containing amino and esterified hydroxy groups bound to the same carbon skeleton having esterified hydroxy groups bound to carbon atoms of at least one six-membered aromatic ring and amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton having amino groups bound to acyclic carbon atoms of the carbon skeleton with amino groups linked to the six-membered aromatic ring, or to the condensed ring system containing that ring, by carbon chains further substituted by singly-bound oxygen atoms
  • C07C 271/12 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
  • C07C 271/20 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by nitrogen atoms not being part of nitro or nitroso groups
  • C07C 271/24 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a ring other than a six-membered aromatic ring
  • C07D 213/20 - Quaternary compounds thereof
  • C07D 233/58 - Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring nitrogen atoms
  • C07D 295/037 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements with quaternary ring nitrogen atoms
  • C07D 413/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07F 5/04 - Esters of boric acids
  • C07F 9/54 - Quaternary phosphonium compounds
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • C07C 271/28 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring to a carbon atom of a non-condensed six-membered aromatic ring
  • C07D 347/00 - Heterocyclic compounds containing rings having halogen atoms as ring hetero atoms
  • C07D 233/02 - Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
  • C07D 247/00 - Heterocyclic compounds containing rings having two nitrogen atoms as the only ring hetero atoms, according to more than one of groups
  • C07D 335/02 - Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
  • C07C 271/16 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
  • C07D 309/34 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members

3.

THERMOPLASTIC ALIPHATIC POLYURETHANE POLYMER HAVING A LOWER CRYSTALLIZATION ENTHALPY

      
Application Number 17780651
Status Pending
Filing Date 2020-12-10
First Publication Date 2023-11-09
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Garska, Bernd
  • Dijkstra, Dirk
  • Wilhelm, Manfred

Abstract

The present invention relates to thermoplastic aliphatic polyurethane polymers, in which the ratio Mz/Mw is in a range from 2.3 to 6 and which have a degree of crystallinity χ in the range from 10% to 51%, to compositions containing such polyurethane polymers, to a method for the production thereof and to the use of these polyurethane polymers.

IPC Classes  ?

  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

4.

Multi-Layer Film with Improved Modulus Properties

      
Application Number 18200295
Status Pending
Filing Date 2023-05-22
First Publication Date 2023-09-28
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Pudleiner, Heinz
  • Meyer, Klaus
  • Winkler, Juergen
  • Bräuer, Wolfgang
  • Nickel, Joerg
  • Pehlert, Craig
  • Li, Chunhua
  • Chen, Yan

Abstract

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles.

IPC Classes  ?

  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • A61C 5/00 - Filling or capping teeth
  • C08J 7/04 - Coating
  • C08L 75/08 - Polyurethanes from polyethers
  • A61C 13/00 - Dental prostheses; Making same
  • B29C 48/92 - Measuring, controlling or regulating
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

5.

Method for Preparing an Amine Hydrochloride Suspension

      
Application Number 18143981
Status Pending
Filing Date 2023-05-05
First Publication Date 2023-08-31
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Merkel, Michael
  • Loddenkemper, Tim
  • Gerhartz, Frank
  • Hirschfeld, Stefan

Abstract

The invention relates to a method for preparing a suspension of a hydrochloride of an organic amine, comprising the following steps of (i) initially charging at least one organic solvent in a reaction vessel to form a liquid level, (ii) adding hydrogen chloride, (iii) adding the organic amine, wherein the organic amine is added below the liquid level present in the reaction vessel and steps (ii) and (iii) are at least partly carried out simultaneously. Furthermore, the present invention also relates to a method wherein the suspension obtained after step (iii) is reacted in a step (iv) with phosgene to obtain the organic isocyanate corresponding to the organic amine used, to the corresponding organic isocyanate and to the use of the organic isocyanate for producing polyisocyanates.

IPC Classes  ?

  • C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
  • C07C 209/74 - Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton by halogenation, hydrohalogenation, dehalogenation, or dehydrohalogenation
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic

6.

METHOD FOR ASCERTAINING A PRODUCT COMPOSITION FOR A MIXED CHEMICAL PRODUCT

      
Application Number 17049607
Status Pending
Filing Date 2019-04-17
First Publication Date 2023-08-03
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor Fäcke, Thomas

Abstract

The invention relates to a method for ascertaining a product composition for a mixed chemical product, a series of feature values, which numerically describe feature values in each case of a descriptor of the particular mixed product, being provided, for each first product composition of a plurality of first product compositions, in the case of a plurality of first product compositions for a particular mixed chemical product, each first product composition being characterised by a numerical product distribution for describing the proportions of components of the first product composition, the series of feature values for each mixed product being mapped by first bijective mapping onto a series of mapped feature values, a series of test feature values, which numerically describe in each case a behaviour property of the particular mixed product, being provided for a plurality of second product compositions for a particular mixed chemical product, the series of test feature values for each mixed product being mapped by second bijective mapping onto a series of mapped test feature values, at least the first or the second mapping including a modification, each series of mapped test feature values of a second product composition being assigned to a series of modified feature values of a first product composition, a correlation matrix being ascertained by multivariate analysis of the associated series, a target requirement profile being predefined for describing at last one behaviour property of a target mixed product and a target descriptor profile for describing descriptors of a target product composition being determined on the basis of the target requirement profile and the correlation matrix.

IPC Classes  ?

  • G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
  • C08G 18/40 - High-molecular-weight compounds
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/66 - Compounds of groups , , or
  • C08G 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
  • G16C 20/70 - Machine learning, data mining or chemometrics

7.

INSQIN

      
Serial Number 97833426
Status Pending
Filing Date 2023-03-10
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals used in industry; unprocessed artificial resins, unprocessed plastics Providing services of research and development of technology in the field of footwear and clothing; research of chemistry; designing of clothing; quality testing of products

8.

AQUEOUS POLYURETHANE RESIN COMPOSITION AND COATING MATERIAL USING THE COMPOSITION

      
Application Number 17787988
Status Pending
Filing Date 2020-12-22
First Publication Date 2023-02-16
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Morita, Hiroshi
  • Munakata, Kazunori
  • Zhu, Yingdan
  • Zhang, Long
  • Fan, Zhirong

Abstract

Provided is an aqueous polyurethane resin composition which is excellent in finished appearance as well as excellent in impact resistance, such as chipping resistance, and adhesion. Provided is an aqueous polyurethane resin composition which is excellent in finished appearance as well as excellent in impact resistance, such as chipping resistance, and adhesion. The aqueous polyurethane resin composition includes a polyurethane resin obtained from at least (a) at least two types of organic diisocyanate compounds and/or polyisocyanate compounds which are different from each other, (b) a polyol compound; (c) an acidic group-containing compounds comprising at least two types of compounds which are a compound containing a carboxyl group as the acid group (a carboxyl group-containing compound) and a compound containing a sulfo group as the acid group (a sulfo group-containing compound); and (d) a chain extender of a polyamine compound, a diamine compound, a polyol compound and/or an alkanolamine compound with a molecular weight of not more than 400, in which the aqueous polyurethane resin composition has a viscosity of not less than 500 Pa·s and not more than 50,000 Pa·s when the polyurethane resin is contained in an amount of 65% by weight.

IPC Classes  ?

  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/48 - Polyethers
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/08 - Processes
  • C08G 18/66 - Compounds of groups , , or

9.

METHOD FOR THE PRODUCTION OF A POLYESTER CARBONATE

      
Application Number 17783790
Status Pending
Filing Date 2020-12-15
First Publication Date 2023-02-09
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Heijl, Jan
  • Bertin, Annabelle
  • Meyer, Alexander
  • Heuer, Helmut Siegen

Abstract

The present invention relates to a method for producing an aliphatic polyester carbonate, the polyester carbonate itself, and to moulding compositions and moulded articles containing the polyester carbonate. The claimed method is characterised in particular in that the method comprises three steps and the last step is a melt transesterification method in the presence of two catalysts.

IPC Classes  ?

  • C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
  • C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
  • C08G 63/87 - Non-metals or inter-compounds thereof

10.

POLYCARBONATE COMPOSITIONS CONTAINING FILLERS AND TRIACYLGLYCEROL CONTAINING EPOXY GROUPS

      
Application Number 17785471
Status Pending
Filing Date 2020-11-20
First Publication Date 2023-02-09
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Heuer, Helmut Werner
  • Wehrmann, Rolf
  • Boumans, Anke

Abstract

The invention relates to carbon fiber-containing polycarbonate compositions, the flowability of which is significantly improved by adding epoxidized triacylglycerols, for example as a constituent of epoxidized soy bean oil. In addition to the very high flowability, the compositions according to the invention have a high rigidity.

IPC Classes  ?

11.

LAYERED STRUCTURES WITH CUTTING LINES

      
Application Number 17781487
Status Pending
Filing Date 2020-12-10
First Publication Date 2023-01-26
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Pudleiner, Heinz
  • Tziovaras, Georgios
  • Planken, Kira
  • Janke, Stefan
  • Koehler, Christoph
  • Kuenzel, Roland
  • Wang, Daopeng
  • Feng, Meng
  • Zhao, Yizhe

Abstract

The invention is related to a layered structure with at least one layer a. of a material with a VST≥85° C. comprising at least one cutting line b. reaching through the whole thickness of the layered structure surrounding at least one first portion which is extractable and reinsertable manually from the layered structure as well as a production process for such a layered structure.

IPC Classes  ?

  • G06K 19/02 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
  • G06K 19/04 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
  • G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier

12.

CATALYST COMPONENT FOR ISOCYANATE MODIFICATION

      
Application Number 17782223
Status Pending
Filing Date 2020-12-15
First Publication Date 2023-01-26
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Richter, Frank
  • Preux, Yoan

Abstract

The invention relates to a catalyst component for isocyanate modification, comprising at least one cyclic ammonium salt having a cation of the formula I wherein Y is a linear or branched C2-C20 segment which is substituted by a hydroxyl group in the 2 position to the charge-bearing nitrogen atom and optionally bears further substituents and is optionally interrupted by heteroatoms from the group of oxygen, sulfur, nitrogen and aromatic rings and optionally has further rings, and the N-bonded substituents R1 and R2 are either independently identical or different, substituted or unsubstituted, optionally branched, aliphatic C1-C20 radicals, aromatic C6-C20 radical or araliphatic C7-C20 radicals or the N-bonded substituents R1 and R2 form a ring segment X with one another for which the same or different definition given above for Y is applicable, with the proviso that X has a hydroxyl group as substituent in the 2 position to the charge-bearing nitrogen atom or does not have a hydroxyl group as substituent in the 2 position to the charge-bearing nitrogen atom.

IPC Classes  ?

13.

METHOD FOR PRODUCING DI- AND POLYISOCYANATES OF THE DIPHENYLMETHANE SERIES

      
Application Number 17783367
Status Pending
Filing Date 2020-12-15
First Publication Date 2023-01-26
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wershofen, Stefan
  • Liu, Enke
  • Hielscher, Anke
  • Adamson, Richard
  • Serra, Ricardo
  • Michele, Volker
  • Spriewald, Juergen

Abstract

The invention relates to a method for producing di- and polyisocyanates of the diphenylmethane series, in which (i) the liquid product flow created in the phosgenation, (ii) the reaction mixture present in an optionally provided reactor for carbamic acid chloride cleaving, (ii) the liquid product flow leaving such an optionally provided reactor for carbamic acid chloride cleaving, (iv) the reaction mixture present in the dephosgenation, or (v) the liquid product flow created in the dephosgenation, is treated with a gaseous hydrogen chloride flow in one stage in a bubble column or in a plate column within a contact time of 1 min to less than 30 min. The product flow treated din this way or in the reaction mixture treated in this way is fed directly (i.e. in particular without further treatment with an inert gas) to the next step of the reaction or workup.

IPC Classes  ?

  • C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

14.

POLYESTER CARBONATES FROM ALIPHATIC DIACIDS AND ALIPHATIC DIOLS, AND PROCESS FOR THE PRODUCTION THEREOF

      
Application Number 17783805
Status Pending
Filing Date 2020-12-15
First Publication Date 2023-01-26
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Meyer, Alexander
  • Heijl, Jan
  • Heuer, Helmut Werner
  • Bertin, Annabelle

Abstract

The present invention relates to a process for preparing a polyester carbonate on the basis of aliphatic diacids and aliphatic diols and to the polyester carbonate prepared according to the process and to a moulding mass and moulding body containing the polyester carbonate. The process according to the invention is a direct synthesis in which all structural elements forming the subsequent polyester carbonate are already present as monomers in the first process step and in which two catalysts are used.

IPC Classes  ?

  • C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
  • C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
  • C08G 63/199 - Acids or hydroxy compounds containing cycloaliphatic rings
  • C08G 64/04 - Aromatic polycarbonates
  • C08G 64/30 - General preparatory processes using carbonates

15.

THERMOPLASTIC MOULDING COMPOSITION WITH GOOD DEMOULDING BEHAVIOUR

      
Application Number 17781502
Status Pending
Filing Date 2020-12-10
First Publication Date 2023-01-19
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wandner, Derk
  • Heuer, Helmut Werner
  • Leipnitz, Sascha
  • Bischoffs, Werner

Abstract

The invention relates to a thermoplastic moulding composition comprising A) at least one thermoplastic polyurethane polymer obtainable by reacting at least the following constituent components: I) one or more aliphatic diisocyanates having a molecular weight of between 140 g/mol to 170 g/mol and II) one or more aliphatic diols having a molecular weight of between 62 g/mol to 120 g/mol, the constituent components used to produce the thermoplastic polyurethane polymer consisting of at least 95% by weight of one or more aliphatic diisocyanates I) and one or more aliphatic diols II), based on the total mass of the constituent components used, wherein the one or more aliphatic diisocyanates I) and the one or more aliphatic diols II) are present in a molar ratio in the range from 1:0:0.95 to 0.95:1.0, characterized in that the ratio (I) of the thermoplastic polyurethane polymer is in a range from 2.3 to 6, wherein (II) is the molar mass centrifugal agent and (III) is the molar mass average, in each case determined by gel permeation chromatography in hexafluoroisopropanol against polymethyl methacrylate as standard, also comprising B) at least one mould release agent. The invention also relates to the use of the moulding composition for producing mouldings and to the mouldings thereof.

IPC Classes  ?

  • C08G 18/08 - Processes
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines

16.

FLAME-RESISTANT POLYCARBONATE-POLYESTER BLEND

      
Application Number 17775349
Status Pending
Filing Date 2020-11-20
First Publication Date 2023-01-19
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Hufen, Ralf
  • Nolte, Marius

Abstract

The present invention relates to a molding compound containing A) 45 to 65 wt. % of at least one aromatic polycarbonate, polyester carbonate or mixtures thereof, B) 18 to 31 wt. % of at least one polybutylene terephthalate having rheological properties of 5 g/10 min to 30 g/10 min determined according to DIN EN ISO 1133 at 250° C. measuring temperature and a load of 2.16 kg, C) 3 to 10 wt % of at least one rubber-modified graft polymer with a graft base consisting of a silicone-acrylate composite rubber and a silicone rubber content of 20 to 60 wt. % relative to the graft base, D) 8 to 13 wt. % of at least one phosphazene, and E) 0 to 8.0 wt. % of at least one polymer additive, the weight ratio of components D to C) being in the range of 1.3:1 to 2.5:1. The invention also relates to a method for producing the molding compound, to the use of the molding compound for producing moldings and to the moldings as such.

IPC Classes  ?

  • C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
  • C08G 63/183 - Terephthalic acids
  • C08G 77/442 - Block- or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
  • C08F 220/14 - Methyl esters
  • C08F 267/06 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated polycarboxylic acids or derivatives thereof as defined in group on to polymers of esters
  • C08F 283/12 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polysiloxanes
  • C08K 5/5399 - Phosphorus bound to nitrogen
  • B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

17.

METHOD OF CLEANING AN APPARATUS USED IN THE CONCENTRATION OF A MINERAL ACID

      
Application Number 17783375
Status Pending
Filing Date 2020-12-16
First Publication Date 2023-01-19
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Pennemann, Bernd
  • Tajvidi, Kameh

Abstract

The present invention relates to a method for preparing an apparatus (or a plant comprising a plurality of apparatuses), for example a heat exchanger, a vaporizer or a distillation column, for use in a process (in particular a continuously operated process) for concentrating a mineral acid by evaporation of water, wherein the apparatus or the plant comprises (at least) a device which is resistant to the mineral acid and the device is flushed with an aqueous alkali metal hydroxide solution having a concentration by mass of alkali metal hydroxide in the range from 1% to 30% at a temperature in the range from 40° C. to 90° C. for a time of from 2 hours to 7 days.

IPC Classes  ?

  • C01B 17/88 - Concentration of sulfuric acid
  • C01B 21/44 - Concentration
  • C07C 201/08 - Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
  • B01B 1/00 - Boiling; Boiling apparatus for physical or chemical purposes
  • B01D 53/26 - Drying gases or vapours
  • B01D 53/28 - Selection of materials for use as drying agents
  • B01D 3/14 - Fractional distillation
  • F28G 9/00 - Cleaning by flushing or washing, e.g. with chemical solvents

18.

LAYER STRUCTURE WITH MODIFIED STRUCTURE, AND PRODUCTION THEREOF

      
Application Number 17775341
Status Pending
Filing Date 2020-11-16
First Publication Date 2023-01-12
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Tziovaras, Georgios
  • Kuenzel, Roland
  • Koehler, Christoph
  • Planken, Kira
  • Janke, Stefan
  • Pudleiner, Heinz

Abstract

The invention relates to a layer structure containing: (A) a first transparent radiation-engravable layer (A) with a first surface a1) and a second surface a2) which runs substantially parallel to the surface a1), said first layer (A) having a colorful or black part-engraving, said engraving being generated by means of nonionizing electromagnetic radiation (E), on the first surface a1) which forms a first outer surface of the layer structure; (B) optionally an additional transparent radiation-engravable layer (B) with a first surface b1) facing towards the first layer (A) and another surface b2) facing away from the first layer (A) and running substantially parallel to the surface b1); and (C) optionally at least one additional transparent plastic layer (C), wherein the additional layer (C) is selectively provided in one of a group of options consisting of: on the face of the first surface a1) of the layer (A), on the face of the additional surface b2) of the additional layer (B), between the two layers (A) and (B), or, in the event of additional layers (C), a combination of at least two of said options, and an image of the colorful or black part-engraving is located on the surface of the layer structure in the form of a nontransparent structural modification forming an additional outer surface of the layer structure and lying opposite the first surface a1). The invention likewise relates to the production of the layer structure as well as to a security document containing the layer structure according to the invention.

IPC Classes  ?

19.

METHOD FOR OPERATING A DISTILLATION COLUMN

      
Application Number 17781413
Status Pending
Filing Date 2020-12-09
First Publication Date 2023-01-12
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Pegel, Sabine
  • Mertens, Klaus

Abstract

The present invention relates to a method for continuously operating a distillation column, which is designed to separate a mixture S, which contains essentially a substance A and a substance B, which boils significantly higher than substance A. In the method according to the invention, the reflux ratio is changed according to the feed flow and, at the same time, the energy input by means of the heat-transfer medium is changed proactively (so-called feed-forward control) by accounting for the feed flow by means of feed-forward control. At the same time, the bottom temperature is observed and the control structure is changed if the bottom temperature falls too far when the heat-transfer medium is reduced by means of the feed flow.

IPC Classes  ?

  • B01D 3/42 - Regulation; Control
  • C07C 201/16 - Separation; Purification; Stabilisation; Use of additives

20.

AQUEOUS POLYURETHANE DISPERSIONS

      
Application Number 17762119
Status Pending
Filing Date 2020-09-23
First Publication Date 2023-01-05
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Fan, Zhirong
  • Tang, Shifeng
  • Chu, Yun
  • Zheng, Shuguang

Abstract

The present invention relates to an aqueous polyurethane dispersion, a method for the preparation thereof, a product comprising the same, and use thereof for a coating composition, an impregnating composition, an adhesive or a sealant. The aqueous polyurethane dispersion comprises a polyurethane obtained by reacting a system comprising the following components: A1) at least one polyisocyanate having an isocyanate functionality of not less than 2; A2) at least two different polytetramethylene ether glycols A2a) and A2b), the A2a) having a number average molecular weight of not more than 1500 g/mol, the A2b) having a number average molecular weight of more than 1500 g/mol; and A3) at least one anionic or potentially anionic hydrophilic agent having a number average molecular weight of 32 g/mol to 400 g/mol and containing hydroxyl and carboxyl functions; B) at least one amino-functional anionic or potentially anionic hydrophilic agent; and C) at least one amino-functional compound having a number average molecular weight of 32 g/mol to 400 g/mol and containing no hydrophilic group; wherein the ratio of the number average molecular weight of the A2a) to the number average molecular weight of the A2b) is 1:9 to less than 1:1, and the weight of the A3) amounts to 20% to 70% of the weight of the hydrophilic agents of the system, wherein the hydrophilic agents of the system are components A3 and B.

IPC Classes  ?

  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/48 - Polyethers
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08K 5/42 - Sulfonic acids; Derivatives thereof
  • C08K 5/17 - Amines; Quaternary ammonium compounds
  • C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs

21.

METHOD FOR COATING A SUBSTRATE WITH A DROP-ON-DEMAND PRINTER

      
Application Number 17773931
Status Pending
Filing Date 2020-11-10
First Publication Date 2023-01-05
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Achten, Dirk
  • Bijlard-Jung, Ann-Christin
  • Schuster, Fabian
  • Hebestreit, Tanja
  • Tillack, Joerg

Abstract

The invention relates to a 2K coating formulation that is printed using a valve jet printer.

IPC Classes  ?

22.

THERMOPLASTIC COMPOSITION FOR LIDAR SENSOR SYSTEM WITH IMPROVED ABSORPTION PROPERTIES

      
Application Number 17775928
Status Pending
Filing Date 2020-11-09
First Publication Date 2023-01-05
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Meyer, Alexander
  • Capellen, Peter
  • Oser, Rafael
  • Hagen, Rainer
  • Klinkenberg, Christoph

Abstract

A sensor system comprises a LiDAR unit having an emitter for laser light having a wavelength of 900 nm to 1600 nm and a receiver for light over a wavelength range which is between 800 nm and 1600 nm and at least partly below the operating wavelength of the LiDAR sensor and a cover having a substrate layer made of thermoplastic material which is arranged such that IR light emitted by the LiDAR unit and received by the LiDAR unit passes through the cover.

IPC Classes  ?

  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles
  • C08K 5/00 - Use of organic ingredients
  • C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
  • C08K 5/3432 - Six-membered rings
  • C08K 5/3465 - Six-membered rings condensed with carbocyclic rings
  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
  • G02B 5/00 - Optical elements other than lenses

23.

FILMS HAVING SPECIAL PROPERTIES

      
Application Number 17778900
Status Pending
Filing Date 2020-12-10
First Publication Date 2023-01-05
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Pudleiner, Heinz
  • Tziovaras, Georgios
  • Planken, Kira
  • Janke, Stefan
  • Koehler, Christoph

Abstract

The invention relates to a film containing a special polycarbonate or copolycarbonate of the formula (Ia), (I-2), (I-3) or (I-4) and to the use of the film in a security document and in a layer structure.

IPC Classes  ?

  • C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
  • C08G 64/24 - General preparatory processes using carbonyl halides and phenols
  • C08J 5/18 - Manufacture of films or sheets
  • C08K 5/42 - Sulfonic acids; Derivatives thereof
  • C09J 7/25 - Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard

24.

PROCESS FOR PREPARING POLYOXYALKYLENE POLYESTER POLYOLS

      
Application Number 17782749
Status Pending
Filing Date 2020-12-14
First Publication Date 2023-01-05
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Lorenz, Klaus
  • Kleinig, Frank

Abstract

The present invention relates to a process for preparing polyoxyalkylene polyester polyols by reacting a starter compound having Zerewitinoff-active H atoms, a cyclic dicarboxylic acid anhydride and a fatty acid ester with an alkylene oxide in the presence of a basic catalyst. The invention further relates to polyoxyalkylene polyester polyols resulting from the method and to a preparation method for polyurethanes by reaction of the polyoxyalkylene polyester polyols according to the invention.

IPC Classes  ?

  • C08G 63/672 - Dicarboxylic acids and dihydroxy compounds
  • C08G 63/48 - Polyesters chemically modified by esterification by resin acids
  • C08G 63/82 - Preparation processes characterised by the catalyst used
  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/08 - Processes
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

25.

COMPOSITION FOR FORMING POLYURETHANE FOAM

      
Application Number 17783749
Status Pending
Filing Date 2020-12-17
First Publication Date 2023-01-05
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Imoto, Yuka
  • Matzusawa, Saeko
  • Sado, Shinichiro

Abstract

The present invention provides a composition which is capable of forming a polyurethane foam having a high hardness and excellent sound absorption properties. [Solution] The present invention relates to a composition for forming polyurethane foam characterized in that the composition for forming polyurethane foam comprises a polyol, a polyisocyanate, and a catalyst, in which the polyol comprises a polyol (A) having a number average molecular weight of 1500 to 8000 g/mol, the catalyst comprises a trimerization catalyst, in which the polyurethane foam has an air permeability of not less than 0.1 L/sec.

IPC Classes  ?

  • C08G 18/08 - Processes
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/20 - Heterocyclic amines; Salts thereof
  • C08G 18/48 - Polyethers
  • C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent

26.

PROCESS FOR PRODUCING POLYETHER CARBONATE POLYOLS

      
Application Number 17770903
Status Pending
Filing Date 2020-11-30
First Publication Date 2022-12-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Braun, Stefanie
  • Hofmann, Joerg
  • Traving, Michael

Abstract

A process for continuous production of polyether carbonate polyols by the addition of alkylene oxide and carbon dioxide in the presence of a DMC catalyst or a metal complex catalyst based on the metals cobalt and/or zinc, onto an H-functional starter substance is provided. Wherein (γ) the H-functional starter substance, alkylene oxide and catalyst are continuously metered into the reaction during the addition and the resulting reaction mixture is continuously discharged from the reactor, wherein (i) before step (γ), a suspension of catalyst in suspension medium and/or H-functional starter substance in the reactor is adjusted to a temperature T1 ranging from 100° C. to 150° C., wherein T1 is at least 10% above a temperature T2 and T2 is a temperature ranging from 50° C. to 135° C., and (ii) from commencement of the addition of alkylene oxide in step (γ) the temperature is continuously reduced to the temperature T2.

IPC Classes  ?

  • C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
  • C08G 64/02 - Aliphatic polycarbonates

27.

USE OF DISPERSION ADHESIVES FOR FOAM BONDING

      
Application Number 17778884
Status Pending
Filing Date 2020-12-03
First Publication Date 2022-12-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Achten, Dirk
  • Arndt, Wolfgang
  • Liberati, Robert
  • Thiebes, Christoph
  • Kueker, Peter
  • Kraus, Harald

Abstract

The invention relates to the use of an aqueous dispersion containing at least one polyurethane-polyurea polymer formed from (a) at least one difunctional polyester polyol having a number-average molecular weight of 400 to 5000 g/mol, (b) at least one difunctional polyol component having a number-average molecular weight of 762 to 399 g/mol, c) at least one diisocyanate and (d) at least one chain extender optionally having at least one ionic group, for the bonding of at least two substrates by application of the aqueous dispersion to at least one of the substrates to be bonded, subsequent drying of the dispersion present on the at least one substrate in order to obtain at least one adhesive layer, and contacting of the at least one adhesive layer with a further substrate or with an adhesive layer present on a further substrate at a pressure of from 0.1 to 5 bar(a) and a temperature of less than 40° C., wherein the polyurethane-polyurea polymer after the drying has a glass transition temperature Tg of from −65 to 10° C. and a melting point of from 40 to 80° C., to a corresponding process for joining at least two substrates, and to an adhesive composite obtained in this way and comprising at least two substrates and an adhesive layer present between every two substrates.

IPC Classes  ?

  • C09J 175/06 - Polyurethanes from polyesters
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/08 - Processes

28.

MEASUREMENT DEVICE AND METHOD FOR DETECTING LOCAL THICKENINGS IN A FILM WEB

      
Application Number 17778903
Status Pending
Filing Date 2020-12-07
First Publication Date 2022-12-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Paulus, Alexander
  • Meyer, Klaus
  • Nickel, Joerg
  • Holtermann, Jan

Abstract

Provided is a measurement device (10) for detecting local thickenings in a film web (20), more particularly an extrusion and/or coextrusion film, having a first roll (14) for rolling on the film web (20) that can be moved along, a second roll (18) that can be supported indirectly above the film web (20) on the first roll (14) for rolling on the film web (20) that can be moved along, wherein the second roll (18) is resiliently guided in the thickness direction of the film web (20) that can be moved along, more particularly in the vertical direction, and at least one distance sensor (24) that is stationary with respect to the first roll (14) and/or to the film web (20) that can be moved along, for detecting a distance of the second roll (18). The second roll (18), which can be displaced from a local thickening of the film web (20) in the thickness direction of the film web (20), makes it possible to quickly and easily detect local thickenings in a film web (20).

IPC Classes  ?

  • G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
  • B65H 26/02 - Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
  • G01S 17/08 - Systems determining position data of a target for measuring distance only

29.

AN AQUEOUS TWO-COMPONENT ADHESIVE

      
Application Number 17774595
Status Pending
Filing Date 2020-11-24
First Publication Date 2022-12-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Zhang, Chenxi
  • Zhu, Feng
  • Peng, Yeqing
  • Shao, Weijia
  • Zhu, Yingdan

Abstract

The invention relates to an aqueous two-component adhesive and use thereof, in particular to the use for laminating a rigid substrate and a plastic film, a laminated product comprising the adhesive, and a method for producing a laminated product. The aqueous two-component adhesive comprises component A and component B, the component A comprising more than 50% by weight and not more than 99% by weight of an aqueous polyurethane dispersion; the B component comprising 1% by weight to 16% by weight of water-dispersible modified polyisocyanate based on hexamethylene diisocyanate, the above weight percentage based on the amount of the adhesive being 100% by weight; wherein the aqueous polyurethane dispersion comprises polyurethane dispersed therein, the enthalpy of melting of the polyurethane being 26 to 100 J/g, preferably 30 to 100 J/g, particularly preferably 30 to 60 J/g, measured at 20° C. to 100° C. for the first heating curve by DSC according to DIN65467 (1999). The aqueous two-component adhesive has the advantages of safety and environmental protection, excellent performance and low laminating temperature.

IPC Classes  ?

  • C09J 175/04 - Polyurethanes
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives

30.

FIBER REINFORCED THERMOPLASTIC COMPOSITE SHEET AND METHOD FOR PREPARING THE SAME

      
Application Number 17778030
Status Pending
Filing Date 2020-11-19
First Publication Date 2022-12-29
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Wang, Song
  • Li, Yilan
  • Qi, Guidong
  • Xiang, Jinbao

Abstract

The present application relates to a fiber reinforced thermoplastic composite sheet and a method for preparing the same. The fiber reinforced thermoplastic composite sheet has on its surface a marble texture effect obtained by laminating cut pieces of a continuous fiber reinforced thermoplastic composite unidirectional tape, wherein the fibers and the resin used in the continuous fiber reinforced thermoplastic composite unidirectional tape have different colors. The thermoplastic composite sheet may be prepared using a simple and quick method, and meet individual requirements of surface appearance of the final product.

IPC Classes  ?

  • B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
  • B29C 70/54 - Component parts, details or accessories; Auxiliary operations
  • B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres

31.

METHOD FOR PRODUCING A THERMOPLASTIC POLYURETHANE WITH LOW MELT ENTHALPY

      
Application Number 17781126
Status Pending
Filing Date 2020-12-10
First Publication Date 2022-12-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Garska, Bernd
  • Raps, Daniel
  • Koenig, Thomas
  • Bellinghausen, Rainer
  • Prenveille, Thomas
  • Houben, Claudia
  • Matner, Mathias

Abstract

The invention relates to a method for producing a thermoplastic polyurethane (G) using a reactive extrusion process, having the steps of: a) mixing a polyisocyanate stream (A) and a polyol stream (B) in a first mixing device (7) such that a mixture stream (C) is obtained, the mass flow rates of the polyisocyanate stream (A) and the polyol stream (B) being set such that the isocyanate index in the mixture stream (C) ranges from 55 to 85, b) introducing the mixture stream (C) into a circulating stream (D) which is conducted in a circular flow, the monomers of the polyisocyanates stream (A) and the polyol stream (B) in the circulating stream (D) being further reacted into OH-functional pre-polymers, c) separating a sub-stream from the circulating stream (D) as a prepolymer stream (E) and introducing same into an extruder (18), d) introducing an isocyanate feed stream (F) into the extruder (18) downstream of the introduction point of the prepolymer stream (E) in the extruder working direction, wherein the introduction process is carried out such that the OH-functional prepolymers contained in the prepolymer stream (E) and the polyisocyanate contained in the isocyanate feed stream (F) are in an isocyanate index of 85 to 120, and e) reacting the prepolymer stream (E) with the isocyanate feed stream (F) in the extruder (18), thereby obtaining the thermoplastic polyurethane (G) as the extrudate.

IPC Classes  ?

  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/08 - Processes

32.

METHOD FOR PRODUCING POLYOXYMETHYLENE POLYOXYALKYLENE COPOLYMERS

      
Application Number 17772762
Status Pending
Filing Date 2020-12-14
First Publication Date 2022-12-22
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Langanke, Jens
  • Wolf, Aurel
  • Guertler, Christoph

Abstract

A method for producing a polyoxymethylene polyoxyalkylene copolymer, comprising reacting a polymer formaldehyde compound with an alkylene oxide in the presence of a double metal cyanide (DMC) catalyst, wherein the polymer formaldehyde compound comprises at least one terminal hydroxyl group and wherein the method comprises the steps of placing a suspending agent in a reactor and subsequently incrementally or continuously metering in the polymer formaldehyde compound into the reactor during the reaction is provided.

IPC Classes  ?

  • C08G 2/08 - Polymerisation of formaldehyde
  • C08G 2/22 - Copolymerisation of aldehydes or ketones with epoxy compounds

33.

POLYSILOXANE-FUNCTIONALIZED POLYURETHANES FOR BOOSTING THE HYDROPHOBICITY OF SURFACES

      
Application Number 17774507
Status Pending
Filing Date 2020-11-09
First Publication Date 2022-12-22
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Golling, Florian
  • Hecking, Andreas
  • Der, Nadine
  • Mager, Dieter

Abstract

The present invention relates to an NCO-terminated polysiloxane prepolymer of the general formula (I) [(Q)q]-(M)m-(P)p—(R)r]t, in which R, P, M, Q, r, p, m, q and t are defined as follows: R in each case independently is at least one polyisocyanate unit and/or at least one diisocyanate unit, P in each case independently is at least one polyol unit, M in each case independently is at least one diisocyanate unit and/or at least one polyisocyanate unit, Q is at least one polysiloxane unit, r in each case independently is a number from 1 to 10, p in each case independently is a number from 1 to 10, m in each case independently is a number from 1 to 10, q in each case independently is a number from 1 to 10, t is an integer from 2 to 5, and the M units present are attached directly to the unit Q; to a process for producing said prepolymer, and to use as curing agent in a coating formulation.

IPC Classes  ?

  • C08G 18/61 - Polysiloxanes
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C09D 175/04 - Polyurethanes

34.

HYDROXY-TERMINATED POLYURETHANE PREPOLYMER HAVING LOW ALLOPHANATE CONTENT

      
Application Number 17781132
Status Pending
Filing Date 2020-12-10
First Publication Date 2022-12-22
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Koenig, Thomas
  • Matner, Mathias
  • Garska, Bernd
  • Bellinghausen, Rainer
  • Houben, Claudia
  • Schubert, Stephan

Abstract

The present invention relates to hydroxy-terminated polyurethane prepolymers that consist to an extent of at least 90% by weight of the product of the reaction of hexamethylene 1,6-diisocyanate with butane-1,4-diol and have an allophanate content of ≤1.00 mol %, to a process for the production thereof, to compositions comprising such polyurethane prepolymers and to the use of said polyurethane prepolymers.

IPC Classes  ?

  • C08G 18/08 - Processes
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines

35.

PROCESS FOR PREPARING POLYURETHANES HAVING A HIGH REACTION ENTHALPY

      
Application Number 17782300
Status Pending
Filing Date 2020-12-10
First Publication Date 2022-12-15
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Matner, Mathias
  • Koenig, Thomas
  • Garska, Bernd
  • Schubert, Stephan
  • Achten, Dirk
  • Bellinghausen, Rainer
  • Houben, Claudia

Abstract

The invention relates to a multi-stage process for the continuous preparation of thermoplastic polyurethanes by reacting one or more aliphatic, cycloaliphatic and/or araliphatic diols with one or more aliphatic, cycloaliphatic and/or araliphatic diisocyanates, wherein the total reaction enthalpy is ≤−500 kJ/kg over all the process stages at a molar ratio of diol to diisocyanate of 1.0:1.0.

IPC Classes  ?

  • C08G 18/08 - Processes
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08J 3/12 - Powdering or granulating

36.

METHOD FOR PRODUCING A MOLDING COMPOUND HAVING IMPROVED SURFACE PROPERTIES

      
Application Number 17774293
Status Pending
Filing Date 2020-12-09
First Publication Date 2022-12-15
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Rudolf, Reiner
  • Erkelenz, Michael
  • Thiem, Hans-Juergen

Abstract

A method for producing a molding compound having improved surface properties is provided. The method relates to, in particular, a molding compound comprising a polycarbonate and at least one reinforcing filler, preferably selected from the group including titanium dioxide (TiO2), talc (Mg3Si4O10(OH)2), dolomite CaMg[CO3]2, kaolinite Al4[(OH)8|Si4O10] and wollastonite Ca3[Si3O9], preferably selected from the group including titanium dioxide (TiO2) and talc (Mg3Si4O10(OH)2). The total amount of reinforcing filler is 3 to 20 wt. %, preferably 4.5 to 15 wt. %, each relative to the total mass of the molding compound, the molding compound having improved properties being produced using at least one master batch produced according to the method.

IPC Classes  ?

  • C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
  • B29B 7/90 - Fillers or reinforcements
  • B29B 7/12 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
  • B29B 7/18 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft

37.

METHOD FOR COATING A SUBSTRATE WITH A DROP-ON-DEMAND PRINTER

      
Application Number 17773933
Status Pending
Filing Date 2020-11-10
First Publication Date 2022-12-08
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Achten, Dirk
  • Tillack, Joerg
  • Schuster, Fabian
  • Bijlard-Jung, Ann-Christin

Abstract

The invention relates to a 2K coating formulation that is printed without a mask using a valve jet printer.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • B41J 2/14 - Structure thereof
  • C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
  • C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
  • B05B 1/30 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
  • B05B 12/04 - Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets

38.

METHOD FOR ISOCYANATE AND POLYURETHANE PRODUCTION WITH IMPROVED SUSTAINABILITY

      
Application Number 17774163
Status Pending
Filing Date 2020-11-05
First Publication Date 2022-12-08
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Bulan, Andreas
  • Weber, Rainer

Abstract

The invention relates to a method for producing isocyanates and optionally polyurethanes by at least: synthesising (1) phosgene (20) from carbon monoxide (21) and chlorine (22); reacting (2) phosgene (20) with diamines (23) to form diisocyanates (24) and hydrogen chloride (25); providing a carbon dioxide gas flow (31); and cleaning (4) the carbon dioxide gas flow (31) of additional components, wherein the carbon dioxide is converted by means of an RWGS reaction (6) to form carbon monoxide (21) and hydrogen (29), which are used as raw materials for the polyurethane production, as well as optionally reacting (3) the diisocyanates (24) with polyether polyol (35a) and/or polyester polyol (35b) to form polyurethanes (37).

IPC Classes  ?

  • C08G 18/48 - Polyethers
  • C01B 32/80 - Phosgene
  • C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 1/26 - Chlorine; Compounds thereof
  • C25B 15/08 - Supplying or removing reactants or electrolytes; Regeneration of electrolytes
  • C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only

39.

PROCESS FOR CONTINUOUS PRODUCTION OF THERMOPLASTIC POLYURETHANE

      
Application Number 17782311
Status Pending
Filing Date 2020-12-10
First Publication Date 2022-12-01
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Koenig, Thomas
  • Achten, Dirk
  • Garska, Bernd
  • Bellinghausen, Rainer
  • Houben, Claudia
  • Schubert, Stephan
  • Matner, Mathias

Abstract

The present invention relates to a process for continuous production of thermoplastic polyurethane by reacting the components (A) one or more cycloaliphatic, aliphatic and/or araliphatic polyisocyanates and (B) one or more cycloaliphatic, aliphatic and/or araliphatic polyols, wherein the entirety of component (B) has a hydroxyl number of 600 mg KOH/g to 1830 mg KOH/g as determined according to DIN EN ISO 4629-2:2016. The process comprises the process steps of: a) preparing a mixture of a portion of component (A), a portion of or the entirety of component (B) and optionally a portion or the entirety of component (C), where in process step a) there is a molar ratio of component (A) to component (B) in the range from 0.6:1.0 to 0.95:1.0; b) mixing the mixture prepared in process step a) with an outgoing oligomerisate substream obtained from process step e); c) reacting the mixture from process step b); d) dividing the reaction mixture obtained in step c) into two outgoing substreams; e) recycling one outgoing substream from process step d) as an incoming substream for the mixture in process step b); f) mixing the remainder of component (A) and where present the remainder of components (B) and (C) with the remaining outgoing substream of process step d); and g) reacting the mixture obtained in process step f) to obtain a thermoplastic polyurethane. The invention further relates to thermoplastic polyurethane obtainable or obtained by the process of the invention, and also to a composition containing the thermoplastic polyurethane according to the invention and to the use thereof.

IPC Classes  ?

  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

40.

PROCESS FOR THE DISTILLATION OF ISOCYANATES

      
Application Number 17762520
Status Pending
Filing Date 2020-09-23
First Publication Date 2022-12-01
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Merkel, Michael
  • Ehrig, Martin
  • Kobylka, Manfred
  • Lehner, Peter
  • Loddenkemper, Tim
  • Schiffhauer, Martin

Abstract

The present invention relates to a process for distillative purification of a crude isocyanate obtained by phosgenation of the corresponding amine in a distillation apparatus under vacuum to obtain the corresponding isocyanate, characterized in that at least one liquid ring compressor is used to generate the vacuum in the distillation apparatus, a particular operating liquid is used for the at least one liquid ring compressor, the pressure p on the suction side of the at least one liquid ring compressor is 10 to 200 mbar(a), the operating temperature of the at least one liquid ring compressor is −17° C. to +15° C. and the operating liquid at the exit from the at least one liquid ring compressor has an AC value of less than 35 000 ppm, to a corresponding use of at least one liquid ring compressor for generating a vacuum in an apparatus for distillation of a crude isocyanate and to a corresponding process for operating a liquid ring compressor for providing the vacuum for distillative purification of an isocyanate obtained by phosgenation of the corresponding amine in a distillation apparatus to obtain the corresponding isocyanate.

IPC Classes  ?

41.

METHOD FOR PRODUCING A MASTER BATCH AND A MOLDING COMPOUND HAVING IMPROVED PROPERTIES

      
Application Number 17774036
Status Pending
Filing Date 2020-12-09
First Publication Date 2022-12-01
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Erkelenz, Michael
  • Rudolf, Reiner
  • Thiem, Hans-Juergen

Abstract

A method for producing a master batch having improved properties is provided. The method relates to, in particular, a master batch containing a polycarbonate and a reinforcing filler, preferably selected from one or more members of the group including the members titanium dioxide (TiO2), talc (Mg3Si4O10(OH)2), dolomite CaMg[CO3]2, kaolinite Al4[(OH)8|Si4O10] and wollastonite Ca3[Si3O9], preferably selected from one or more members of the group including the members titanium dioxide (TiO2) and talc (Mg3Si4O10(OH)2). The content of the reinforcing filler is 30 to 70 wt. %, preferably 35 to 65 wt. %, particularly 40 to 60 wt. %, relative to the total weight of the molding compound. A method for producing a molding compound having improved properties is also provided.

IPC Classes  ?

  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
  • C08J 5/18 - Manufacture of films or sheets
  • B29B 7/90 - Fillers or reinforcements
  • B29B 7/12 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft

42.

VEHICLE SEAT CONTAINING FIBER COMPOSITE MATERIAL AND EXPANDED THERMOPLASTICS

      
Application Number 17765580
Status Pending
Filing Date 2020-10-07
First Publication Date 2022-11-24
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Klein, Andreas
  • Grosser, Ulrich
  • Baudach, Felix

Abstract

The invention relates to a seat for a vehicle, preferably for a land craft, a watercraft, and/or an aircraft, comprising at least one multilayer structural component (1) with at least one first (6) and at least one second ply (5) of a composite material, in each case containing fibers which are integrated into a thermoplastic, and with a layer (7) which is arranged between said plies and is made of at least one foamed thermoplastic; to a method for producing same, said method having at least the following steps (A): providing at least one first and at least one second ply of a composite material, in each case containing fibers which are integrated into a thermoplastic, (B) thermoforming the first ply of composite material into a lower seat shell, (C) thermoforming the second ply of composite material into an upper seat shell, (D) arranging the lower seat shell and the upper seat shell in a tool, such that a gap is formed between the two seat shells, (E) introducing foamed particles made of a thermoplastic into the gap, and (F) pressing the two seats shells and the foamed particles in order to obtain the seat; and to the use of the seat in a vehicle, preferably in a land craft, a watercraft, and/or an aircraft.

IPC Classes  ?

  • B60N 2/70 - Upholstery springs
  • B60N 2/68 - Seat frames
  • B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniques; Apparatus therefor of moulding techniques only
  • B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
  • B29C 51/14 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
  • B29C 44/44 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in the form of expandable particles or beads
  • B29C 44/14 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
  • B29D 99/00 - Subject matter not provided for in other groups of this subclass
  • B32B 7/08 - Interconnection of layers by mechanical means
  • B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
  • B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
  • B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

43.

POLYMERIZABLE COMPOSITIONS FOR PREPARING POLYISOCYANURATE-BASED PLASTICS HAVING EXTENDED WORKLIFE

      
Application Number 17619084
Status Pending
Filing Date 2020-07-01
First Publication Date 2022-11-17
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Meisenheimer, Richard Daniel Matthias
  • Heinz, Paul
  • Achten, Dirk
  • Golling, Florian
  • Laas, Hans-Josef
  • Mager, Dieter

Abstract

The invention relates to polymerizable compositions that are suitable for preparing polyisocyanurate-based plastics and have an extended worklife as compared to the compositions conventionally used for this purpose.

IPC Classes  ?

  • C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/22 - Catalysts containing metal compounds
  • C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
  • C08G 18/72 - Polyisocyanates or polyisothiocyanates
  • C09D 175/04 - Polyurethanes
  • C09J 175/04 - Polyurethanes

44.

ELECTRICALLY DIMMABLE GLAZING

      
Application Number 17767102
Status Pending
Filing Date 2020-10-08
First Publication Date 2022-11-17
Owner
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
  • OPAK Smart Glas GmbH (Germany)
Inventor
  • Hagen, Rainer
  • Klein, Andreas
  • Najaf Pour Aghcheshmeh, Hamid-Reza

Abstract

The present invention relates to a specific multilayer composite which is suitable as a constituent of liquid-crystal devices and which contains two specific polycarbonate layers inter alia. The invention further relates to a method of producing the multilayer composite. The invention further relates to a liquid-crystal device comprising a multilayer composite according to the present invention, to a method of production thereof, and to the use thereof as structural glazing, in automotive glass, as floodlight cover, in optical filters, in shutters, in flat visual display screens, in glazed advertising devices, in dividing walls of trains, and in point-of-interest devices.

IPC Classes  ?

  • B32B 37/02 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
  • B32B 7/08 - Interconnection of layers by mechanical means
  • B32B 7/023 - Optical properties
  • B32B 27/16 - Layered products essentially comprising synthetic resin specially treated, e.g. irradiated
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

45.

Flame retardant impact-modified polycarbonate composition

      
Application Number 17777086
Grant Number 11732130
Status In Force
Filing Date 2020-11-27
First Publication Date 2022-11-17
Grant Date 2023-08-22
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Huang, Zhenyu
  • Han, Hao

Abstract

The present application relates to a flame retardant impact-modified polycarbonate composition and shaped parts as well as articles made therefrom. The polycarbonate composition comprises the following components: an aromatic polycarbonate, a rubber-modified vinyl (co)polymer, and a flame retardant combination. The shaped article made from the polycarbonate composition according to the present invention has a good balance among heat resistance, flame retardance and impact strength.

IPC Classes  ?

  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
  • C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
  • C08K 5/5333 - Esters of phosphonic acids
  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C09K 21/14 - Macromolecular materials
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

46.

RESISTANT 2K-PUR COATINGS

      
Application Number 17617026
Status Pending
Filing Date 2020-06-26
First Publication Date 2022-11-17
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Laas, Hans-Josef
  • Hebestreit, Tanja
  • Reimann, Yvonne

Abstract

The invention relates to coating agents containing A) at least one polyol component, B) at least one crosslinking component which is obtained by reacting at least one polyisocyanate with at least one amino functional alkoxy silane and which comprises free and/or blocked isocyanate groups, optionally (C) at least one catalyst for crosslinking silane groups, and D) optionally additional auxiliary agents and additives. The invention is characterized in that the polyol component A) comprises at least one polyester polyol A1) that has been produced using a 2,2,4,4-tetraalkylcyclobutane-1,3-diol (TACD) of the general formula (I), in which independently of one another the groups R1, R2, R3, and R4 represent linear or branched alkyl groups with up to 8 carbon atoms. The invention additionally relates to the use of the coating agents and to substrates which are coated with the coating agents according to the invention.

IPC Classes  ?

47.

METHOD FOR THE PURIFICATION OF ANILINE

      
Application Number 17620900
Status Pending
Filing Date 2020-07-01
First Publication Date 2022-11-03
Owner
  • COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
  • COVESTRO DEUTSCHLAND AG (Germany)
Inventor
  • Steffens, Friedhelm
  • Krause, Jonas
  • Chan, Denise

Abstract

The invention relates to a method for the purification of aniline, comprising the following steps: a) providing a raw aniline fraction; b) extracting the raw aniline fraction with an aqueous extractant containing, in relation to the total mass of the aqueous extractant, an alkali metal hydroxide in a concentration range from 0.009 to 2.05 mass % and an alkali metal salt that is different from an alkali metal hydroxide in a concentration range from 2.40 to 25.0 mass %, wherein an organic aniline phase and an aqueous amino phenolate phase are obtained after a phase separation; c) distilling the organic aniline phase from step b), obtaining a flow of purified aniline, a gaseous flow that boils at a lower temperature than aniline and containing organic impurities, and a liquid flow that boils at a higher temperature than aniline and containing organic impurities and aniline.

IPC Classes  ?

48.

EXTRUDER HAVING SCREW ELEMENTS WITH A PARTICULARLY LARGE PITCH IN THE REGION OF THE GAS VENTING OPENING, AND USE OF SAID EXTRUDER

      
Application Number 17640049
Status Pending
Filing Date 2020-10-06
First Publication Date 2022-10-27
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor Engberg, Roland

Abstract

A multi-shaft extruder which has screw shafts which are rotatable in the same direction and at the same speed, and which has at least one gas venting opening, and which has, in the entry region of said at least one gas venting opening, screw elements with a particularly large pitch or screw elements which have an asymmetric screw profile or which are mounted eccentrically on the axis of rotation of the screw shaft. The invention also relates to the use of the extruder according to the invention for processing or manufacturing plastic materials, and to the use of the screw elements with a particularly large pitch or the use of screw elements which have an asymmetric screw profile or which are mounted eccentrically on the axis of rotation of the screw shaft, in the region of the gas venting opening of a multi-shaft extruder.

IPC Classes  ?

  • B29C 48/76 - Venting means; Degassing means
  • B29C 48/535 - Screws with thread pitch varying along the longitudinal axis
  • B29C 48/52 - Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
  • B29C 48/405 - Intermeshing co-rotating screws

49.

METHOD FOR PRODUCING A SPAR CAP, TRAILING EDGE AND/OR OTHER REINFORCED LAMINATE STRUCTURAL PARTS OF WIND TURBINE BLADE

      
Application Number 17625549
Status Pending
Filing Date 2020-08-25
First Publication Date 2022-10-20
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wu, Di
  • Li, Zhijiang
  • Gu, Yongming
  • Zheng, Ian
  • Sun, Guobin

Abstract

A method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade, the Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade produced by the method and its use are provided. The method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade improves production efficiency and saves costs.

IPC Classes  ?

  • B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
  • B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
  • B29C 70/86 - Incorporating in coherent impregnated reinforcing layers

50.

METHOD FOR PRODUCING ISOCYANATES

      
Application Number 17640419
Status Pending
Filing Date 2020-09-14
First Publication Date 2022-10-20
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Zechlin, Joachhim
  • Loddenkemper, Tim
  • Bludowsky, Thomas

Abstract

The present invention relates to a process for preparing an isocyanate comprising the steps of (A) reacting an amine with a stoichiometric excess of phosgene using an aromatic solvent of formula C6H6-XClX, wherein X=1 or 2, (a) as a diluent during the reaction and/or (b) as a means for cooling the reaction mixture formed from the reaction of the amine with phosgene (so-called quench) to obtain (optionally after a decompression) a liquid product mixture comprising the isocyanate and the aromatic solvent employed and a gaseous product mixture containing phosgene and hydrogen chloride; followed by (B) isolating the isocyanate from the liquid product mixture obtained in step (A) comprising the step of a final distillation in which the isolated isocyanate is obtained as a product stream, wherein in the final distillation or in a distillation step upstream of the final distillation at least one stream comprising aromatic solvent of formula C6H6-YClY, wherein Y=X+1, is (at intervals or continuously) discharged such that the isolated isocyanate has a mass fraction, based on its total mass, of aromatic solvent of formula C6H6-YClY in the range from 0.0 ppm to 9.9 ppm, preferably 0.0 ppm to 5.0 ppm, particularly preferably 0.0 ppm to 3.0 ppm.

IPC Classes  ?

  • C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
  • C07C 263/20 - Separation; Purification

51.

TRANSLUCENT METALLISED DESIGN SURFACE

      
Application Number 17642363
Status Pending
Filing Date 2020-09-21
First Publication Date 2022-10-20
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Grimm, Thomas
  • Hagen, Rainer
  • Grosser, Ulrich

Abstract

The invention relates to a multi-layered body comprising a transparent thermoplastic layer, a diffuser layer and a metal layer which, despite a decorative, structured visible surface, can transport information from a projection unit behind it with excellent sharpness and brightness. Corresponding elements can be used, for example, in Car-to-X communication.

IPC Classes  ?

  • F21S 43/20 - Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • F21V 3/06 - Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material

52.

LED ILLUMINATION ELEMENTS BASED ON MULTI-LAYER ELEMENTS WITH A STONE-LIKE APPEARANCE

      
Application Number 17642991
Status Pending
Filing Date 2020-09-21
First Publication Date 2022-10-20
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Thust, Torsten
  • Schulz, Thorsten
  • Hagen, Rainer
  • Piermatteo, Ciro
  • Rogowski, Marius
  • Berger, Armin
  • Helmig, Jan

Abstract

The invention relates to a multi-layer element which can be illuminated with edge lighting and optionally also with backlighting, an which has a stone-like appearance. Alongside the stone layer, layers made of a thermoplastic material are also provided. The structure is not only an attractive design element with day/night design for building interiors and facade construction, but it can also be used in many ways in the automotive sector.

IPC Classes  ?

  • B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 1/00 - Layered products essentially having a general shape other than plane
  • B32B 7/023 - Optical properties
  • B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
  • F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for

53.

LED LIGHTING ELEMENTS ON THE BASIS OF MULTI-LAYER BODIES HAVING SOLID STONE APPEARANCE

      
Application Number 17642999
Status Pending
Filing Date 2020-09-21
First Publication Date 2022-10-20
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Thust, Torsten
  • Schulz, Thorsten
  • Hagen, Rainer
  • Piermatteo, Ciro
  • Rogowski, Marius
  • Berger, Armin
  • Helmig, Jan

Abstract

What is described as a multilayer body which can be illuminated by means of edge lighting and optionally also by backlighting, and which has a stone look. As well as the stone layer, layers of thermoplastic material are provided, with a translucent dark-colored layer provided on the reverse side with respect to the stone layer. The structure is a pleasing design element with day/night design not just in the configuration of building interiors and facades, but can also be used in a versatile manner in the automotive sector.

IPC Classes  ?

  • B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
  • B32B 7/023 - Optical properties
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 1/00 - Layered products essentially having a general shape other than plane
  • B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
  • B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
  • F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for
  • F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems

54.

METHOD FOR PRODUCING FLAMEPROOF PUR/PIR RIGID FOAMS

      
Application Number 17618135
Status Pending
Filing Date 2020-07-06
First Publication Date 2022-10-20
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Albach, Rolf
  • Schleiermacher, Stephan
  • Wagner, Martina

Abstract

A polyol formulation for producing flameproof polyurethane/polyisocyanate rigid foams (referred to individually or jointly in the following as “PUR/PIR rigid foams”), containing a polyester polyol having an OH number ≤250 mg KOH/g, a functionality of 1.5 to 2.5 and a free glycol content with Mn<150 g/mol of <6 wt. %, a polyethylene glycol with an average molecular weight of <700 g/mol and an average functionality of <2.5 and specific polyethyleneglycol alkylphenyl ethers, and methods for producing PUR/PIR rigid foams using said polyol formulation and to the PUR/PIR rigid foams obtained thereby are provided.

IPC Classes  ?

  • C08G 18/22 - Catalysts containing metal compounds
  • C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 18/48 - Polyethers
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/40 - High-molecular-weight compounds
  • C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
  • C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent

55.

ACID-RESISTANT AND ALKALI-RESISTANT COMPOSITION

      
Application Number 17642750
Status Pending
Filing Date 2020-09-23
First Publication Date 2022-10-13
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Chu, Yun
  • Fan, Zhirong
  • Liang, Xutian
  • Li, Xuedong

Abstract

The present invention relates to an acid-resistant and alkali-resistant composition, a preparation process thereof and use thereof in producing an article, and an article comprising a substrate coated or impregnated with the same and the preparation method and use of the article. The composition contains: at least one aqueous polyurethane dispersion having a carboxyl group; at least one crosslinking agent having an isocyanate reactive group; at least one crosslinking agent having a carboxyl reactive group; and optionally an additive; wherein, the amount of the carboxyl groups in said aqueous polyurethane dispersion is more than 0.05 wt %, based on the amount of said aqueous polyurethane dispersion being 100 wt %; the amount of said crosslinking agent having an isocyanate reactive group is 0.2 wt %-10 wt %, based on the amount of said composition being 100 wt %; the molar ratio of the carboxyl reactive groups to the carboxyl groups of said composition is more than 0.5. The film formed with the composition of the present invention has good acid-resistance and alkali-resistance. The product obtained by treating with the composition of the present invention has flat appearance and good handfed.

IPC Classes  ?

  • C08G 18/44 - Polycarbonates
  • C08G 18/08 - Processes
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • D06M 15/568 - Reaction products of isocyanates with polyethers

56.

Multi-layer film with improved modulus properties

      
Application Number 17847468
Grant Number 11691399
Status In Force
Filing Date 2022-06-23
First Publication Date 2022-10-13
Grant Date 2023-07-04
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Pudleiner, Heinz
  • Meyer, Klaus
  • Winkler, Jürgen
  • Bräuer, Wolfgang
  • Nickel, Joerg
  • Pehlert, Craig
  • Li, Chunhua
  • Chen, Yan

Abstract

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles.

IPC Classes  ?

  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • A61C 5/00 - Filling or capping teeth
  • C08J 7/04 - Coating
  • C08L 75/08 - Polyurethanes from polyethers
  • A61C 13/00 - Dental prostheses; Making same
  • B29C 48/92 - Measuring, controlling or regulating
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
  • B29C 48/30 - Extrusion nozzles or dies
  • B29C 48/34 - Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated

57.

METHOD AND SYSTEM FOR IMPROVING AN INJECTION MOLDING PROCESS

      
Application Number 17642738
Status Pending
Filing Date 2020-11-18
First Publication Date 2022-10-13
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Zoellner, Olaf
  • Zoppe, Sebastian
  • Bontenackels, Christoph
  • Potaraju, Sairam

Abstract

The invention relates to a method for improving an injection molding process, wherein a product is produced by an injection molding apparatus through an injection molding process from a precursor charge of precursor material based on process settings applied to the injection molding apparatus, wherein the injection molding process comprises injecting the precursor charge into a mold of the injection molding apparatus, wherein the precursor charge is produced through a precursor production process described by precursor production parameters, wherein the applied process settings are determined prior to the injection molding process by a computer simulation of the injection molding process executed by a computing apparatus, which computer simulation is based on a simulation model, on the precursor production parameters and on given process conditions of the injection molding process, which given process conditions comprise a shape of the mold. The invention also relates to a corresponding system.

IPC Classes  ?

  • B29C 45/76 - Measuring, controlling or regulating

58.

METHOD FOR PRODUCING POLYETHER CARBONATE POLYOLS

      
Application Number 17618054
Status Pending
Filing Date 2020-07-24
First Publication Date 2022-10-06
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Hofman, Joerg
  • Laemmerhold, Kai
  • Hilken, Persefoni
  • Welsch, Nicole
  • Nefzger, Hartmut

Abstract

A method for producing polyether carbonate polyols via the following steps: (i) accumulating alkylene oxide and carbon dioxide on a H-functional starter substance in the presence of a double metal cyanide catalyst or a metal complex catalyst based on the metals zinc and/or cobalt, wherein a reaction mixture containing the polyether carbonate polyol is obtained; and (ii) adding at least one component K to the reaction mixture containing the polyether carbonate polyol, wherein a buffer system suitable for buffering a pH value in the region of pH 3.0 to 9.0 is used as component K, wherein the component K is free from compounds containing P—OH— groups.

IPC Classes  ?

  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
  • C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers

59.

MINERAL-REINFORCED CO-POLYESTER BLEND

      
Application Number 17615607
Status Pending
Filing Date 2020-06-17
First Publication Date 2022-10-06
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Nolte, Marius
  • Hufen, Ralf

Abstract

The invention relates to a composition containing A) 60 to 80 wt. % of a polyester on the basis of terephthalic acid and at least one dianhydrohexitol and optionally additional diols, B) 10 to 30 wt. % of a polyester on the basis of succinic acid and at least one aliphatic, araliphatic or cycloaliphatic diol, and C) 3 to 12 wt. % of at least one mineral reinforcing material on the basis of talcum. The invention also relates to a method for producing a molding compound from the composition, to the molding compound itself and to moldings obtainable from the composition or the molding compound.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

60.

METHOD FOR PREPARING POLYETHER CARBONATE ALCOHOLS

      
Application Number 17625539
Status Pending
Filing Date 2020-08-12
First Publication Date 2022-10-06
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wolf, Aurel
  • Westhues, Stefan
  • Schuetze, Mike
  • Guertler, Christoph

Abstract

A method for preparing polyether carbonate alcohols by attaching cyclic carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that a tribasic alkali- or alkaline earth metal phosphate is used as the catalyst, the alkali metal being selected from potassium or cesium.

IPC Classes  ?

  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
  • C08G 18/44 - Polycarbonates
  • C08G 64/02 - Aliphatic polycarbonates
  • C08G 64/30 - General preparatory processes using carbonates

61.

AQUEOUS POLYURETHANE DISPERSION

      
Application Number 17615864
Status Pending
Filing Date 2020-06-10
First Publication Date 2022-09-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Zhu, Yingdan
  • Jin, Chen
  • Zhou, Shijie
  • Zhao, Dongbo
  • Avtomonov, Evgeny

Abstract

The present invention relates to an aqueous polyurethane dispersion and a process for preparing the same, an adhesive containing the same, and an adhesion article obtained by bonding with the adhesive. The aqueous polyurethane dispersion comprises a polyurethane having an anionic group dispersed therein, the polyurethane has a fusion enthalpy of 3 J/g-100 J/g at 20° C.-100° C. of the first temperature rising curve measured with the DSC according to DIN 65467, a weight-average molecular weight of 31,000-95,000, and the aqueous polyurethane dispersion has an acid value of 0.5 mg KOH/g-8.5 mg KOH/g. The adhesive comprising the aqueous polyurethane dispersion of the present invention has an excellent initial bonding force.

IPC Classes  ?

  • C08G 18/66 - Compounds of groups , , or
  • C09J 175/06 - Polyurethanes from polyesters
  • C09D 175/06 - Polyurethanes from polyesters
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C08J 3/07 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/72 - Polyisocyanates or polyisothiocyanates
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
  • C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/08 - Processes

62.

DISPERSION ADHESIVES

      
Application Number 17638882
Status Pending
Filing Date 2020-08-28
First Publication Date 2022-09-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Kraus, Harald
  • Liberati, Robert
  • Kueker, Peter
  • Melchiors, Martin

Abstract

The invention relates to formulations of aqueous dispersion adhesives based on aqueous polyurethane or polyurethane-urea dispersions, and to the use of the adhesive formulations for the adhesive bonding of foam substrates by the spray coagulation process. The dispersion comprises as disperse phase at least one polymer which after drying is semicrystalline or crystalline and has a melting temperature in the range from 30 to 80° C. and an enthalpy of fusion of ≥35 J/g. The formulation comprises at least one plasticizer and optionally at least one tackifier resin.

IPC Classes  ?

63.

POLYURETHANE-BASED INSULATION BODY AND METHOD FOR PRODUCING SAME

      
Application Number 17638893
Status Pending
Filing Date 2020-08-31
First Publication Date 2022-09-29
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Reithmeier, Marina
  • Hahn, Christian
  • Albers, Reinhard

Abstract

The present invention relates to an insulation body based a hard, fine-cell and open-cell polyurethane/polyisocyanurate foam with a barrier film, and a method for producing same.

IPC Classes  ?

  • C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
  • B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
  • B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
  • C08G 18/48 - Polyethers

64.

METHOD FOR THE HYDROGENATION OF AROMATIC NITRO COMPOUNDS

      
Application Number 17637173
Status Pending
Filing Date 2020-08-27
First Publication Date 2022-09-15
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
  • Lanxess Deutschland GmbH (Germany)
Inventor
  • Sandbrink, Lennart
  • Pennemann, Bernd
  • Zirngiebl, Eberhard
  • Gerdinand, Martina
  • Quella, Hans-Jürgen
  • Ullrich, Daniel
  • Williams, Marc

Abstract

The present invention relates to a process for the preparation of an aromatic amine by hydrogenation of an aromatic nitro compound, comprising the following steps: (I) providing a copper tetramine salt-based impregnation catalyst, in particular an impregnation catalyst obtainable by the incipient wetness method, comprising a metal or metal oxide on a support as a hydrogenation catalyst. At least metallic or oxidic copper (in particular CuO) is present and the mole fraction of Cu based on all metals present is in the range of 075 to 1, and wherein the support comprises shaped silicon-dioxide shaped bodies or silicon-carbide shaped bodies; (II) optionally, activating the hydrogenation catalyst by treating with hydrogen in the absence of the aromatic nitro compound; and (III) reacting the aromatic nitro compound with hydrogen in the presence of the, optionally activated, hydrogenation catalyst to obtain the aromatic amine.

IPC Classes  ?

  • C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
  • B01J 37/08 - Heat treatment
  • B01J 37/02 - Impregnation, coating or precipitation
  • B01J 23/72 - Copper

65.

METHOD FOR PRODUCING THERMOPLASTICALLY PROCESSABLE POLYURETHANE POLYMERS

      
Application Number 17631523
Status Pending
Filing Date 2020-08-04
First Publication Date 2022-09-08
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Shen, Yi
  • Hermanns, Franz-Heinrich
  • Wamprecht, Christian
  • Reichert, Peter

Abstract

The present invention relates to a novel process for preparing thermoplastically processable polyurethanes, to thermoplastically processable polyurethane obtainable from the process and to compositions, articles and uses of these polyurethanes.

IPC Classes  ?

  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/50 - Polyethers having hetero atoms other than oxygen
  • C08G 18/48 - Polyethers
  • C08G 18/66 - Compounds of groups , , or
  • C08G 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/44 - Polycarbonates
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

66.

POLYISOCYANATE AND PROCESS FOR PREPARING THE SAME

      
Application Number 17632544
Status Pending
Filing Date 2020-08-06
First Publication Date 2022-09-08
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Li, Hongchao
  • Zhu, Zhe
  • Liu, Jingmei
  • Ding, Pingbo
  • Wang, Yuefeng
  • Wu, Ruiwen
  • Maleika, Robert

Abstract

The present invention relates to a urethane group-containing polyisocyanate prepared by reacting a system containing organic polyhydroxy compounds and excess toluene diisocyanate and, a process for preparing the same, a product containing the polyisocyanate, and the use thereof as a polyisocyanate component in a polyurethane paint and a polyurethane adhesive. The polyisocyanate has the following characteristics: a. the ratio of the integral area of the component peaks having a. weight-average molecular weight of 800±50 to the integral area of the shoulder peaks having a weight-average molecular weight of 950±50 is 2-14; and b. the viscosity is not higher than 2500 mPa·s. The polyisocyanate of the present invention has a good storage stability.

IPC Classes  ?

  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C09D 175/04 - Polyurethanes
  • C09J 175/04 - Polyurethanes

67.

METHOD OF PRODUCING A CHEMICAL PRODUCT USING A REGRESSION MODEL

      
Application Number 17631989
Status Pending
Filing Date 2020-07-28
First Publication Date 2022-09-08
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Tabbi, Giuseppe Teodoro Maria
  • Ngo, Tan-Vinh

Abstract

A method of producing a chemical product from a reaction mixture containing at least two components includes the steps of: I) providing a data set comprising a plurality of production instances, each production instance comprising data on (a) the composition of the reaction mixture and/or process conditions, (b) at least one climate parameter at the production site of the product, and (c) at least one target physical property of the product; II) generating a regression model for each target physical property of the product using the data set, wherein in the regression model a respective target physical property is the dependent variable and at least part of the other data in the data set, excluding any remaining target physical properties, are independent variables; III) transforming each regression model to obtain a transformed regression model where a) the composition of the reaction mixture and/or b) the process conditions of a reaction depends on at least one climate parameter at the production site of the product and each target physical property is assigned a desired value; IV) combining the transformed regression models to obtain a combined regression model.

IPC Classes  ?

  • G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
  • G16C 20/70 - Machine learning, data mining or chemometrics

68.

NOVEL URETHANASES FOR THE ENZYMATIC DEGRADATION OF POLYURETHANES

      
Application Number 17692254
Status Pending
Filing Date 2022-03-11
First Publication Date 2022-09-08
Owner Covestro Intellectual Property GMBH & Co. KG (Germany)
Inventor
  • Bittner, Natalie
  • Nefzger, Hartmut
  • Behnken, Gesa
  • Jager, Gernot
  • Behnken, Swantje
  • Reisky, Lukas

Abstract

The present invention relates to new urethanases for the enzymatic breakdown of polyurethanes and to an enzymatic process for the complete breakdown of polyurethanes into defined monomers.

IPC Classes  ?

  • C12P 7/44 - Polycarboxylic acids
  • C12N 9/80 - Hydrolases (3.) acting on carbon to nitrogen bonds other than peptide bonds (3.5) acting on amide bonds in linear amides
  • C12P 7/18 - Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic polyhydric

69.

POLYPHOSPHAZENE AND MOLDING COMPOUND CONTAINING THE POLYPHOSPHAZENE

      
Application Number 17637838
Status Pending
Filing Date 2020-08-27
First Publication Date 2022-09-01
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Paven, Maxime
  • Taschner, Vera
  • Hobeika, Sven
  • Eckel, Thomas
  • Mentizi, Stamo
  • Pochorovski, Igor
  • Pich, Andrij
  • Deniz, Ayse
  • Buschmann, Sven

Abstract

The invention relates to a polyphosphazene produced by a method comprising the steps a) and b): a) converting an in particular cyclical phosphazene by means of phenol in the presence of a base; b) further converting by means of a special aromatic diphenol in the presence of a base, wherein the molar ratio of phenol used to cyclical phosphazene used is in the range from 3.5:1 to 1:1. The invention also relates to a method for producing the polyphosphazene and to a molding compound containing the polyphosphazene and a thermoplastic polymer.

IPC Classes  ?

  • C08G 79/025 - Polyphosphazenes
  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

70.

DISTILLATION OF POLYISOCYANATES

      
Application Number 17625271
Status Pending
Filing Date 2020-07-06
First Publication Date 2022-08-25
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Merkel, Michael
  • Grosse Daldrup, Anna
  • Eggert, Christoph
  • Groth, Stefan
  • Meuresch, Markus
  • Groetzner, Monika
  • Nolte, Stefan

Abstract

The invention relates to a method for producing polyisocyanates having a low monomer content, said method comprising the following steps: (i) modifying at least one monomeric diisocyanate to obtain a mixture containing at least one polyisocyanate and unconverted monomeric diisocyanate, (ii) separating the mixture obtained in step (i) into at least one gaseous stream containing monomeric diisocyanate and a liquid stream depleted of monomeric diisocyanate, (iii) partially condensing the gaseous stream from (ii) in at least one condenser, so that a liquid condensate and an uncondensed vapour stream are obtained, (iv) post-condensing the uncondensed vapour stream obtained in step (iii) in at least one post-condenser, so that a post-condensate and an uncondensed waste gas are obtained, and (v) delivering the uncondensed waste gas from step (iv) to the suction side of a vacuum pump, characterised in that the at least one post-condenser in step (iv) is operated at a post-condenser temperature, and the at least one condenser in step (iii) is operated at a condenser temperature, wherein the post-condenser temperature is lower by ≥1 to ≤168 K than the condenser temperature.

IPC Classes  ?

  • C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
  • B01D 5/00 - Condensation of vapours; Recovering volatile solvents by condensation
  • B01D 1/22 - Evaporating by bringing a thin layer of the liquid into contact with a heated surface
  • B01D 3/14 - Fractional distillation

71.

Polymer composition and article made from the same

      
Application Number 17637836
Grant Number 11591466
Status In Force
Filing Date 2020-08-27
First Publication Date 2022-08-25
Grant Date 2023-02-28
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wang, Leith
  • Wang, Xiaoxiang

Abstract

The present application relates to a polymer composition comprising from 20 wt % to 30 wt % of a polycarbonate; from 40 wt % to 60 wt % of a polybutylene terephthalate; from 5 wt % to 30 wt % of a reinforcement fiber; from 1 wt % to 10 wt % of glass bubbles, and from 0.3 wt % to 2 wt % of transesterification inhibitor, all contents are based on the total weight of the composition. The polymer composition according to the present invention has improved adhesion to the metal (especially aluminum), even after annealing and anodizing processes are applied.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
  • B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
  • B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
  • B29K 67/00 - Use of polyesters as moulding material
  • B29K 705/02 - Aluminium
  • B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof

72.

REACTION MIXTURES OF ISOCYANATES AND POLYOLS WITH EXTENDED POT LIFE

      
Application Number 17742436
Status Pending
Filing Date 2022-05-12
First Publication Date 2022-08-25
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Matner, Mathias
  • Maleika, Robert
  • Stern, Frank-Stefan

Abstract

The invention relates to compounds and methods for extending the pot life of mixtures of isocyanates and isocyanate-reactive compounds when using acidic phosphoric acid ester as a mould release agent.

IPC Classes  ?

  • C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
  • C08G 18/08 - Processes
  • C08G 18/48 - Polyethers
  • C08G 18/52 - Polythioethers
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 18/80 - Masked polyisocyanates
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

73.

PROCESS FOR PREPARING POLYETHER CARBONATE ALCOHOLS

      
Application Number 17619103
Status Pending
Filing Date 2020-08-12
First Publication Date 2022-08-25
Owner
  • COVESTRO DEUTSCHLAND AG (Germany)
  • COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Wolf, Aurel
  • Schuetze, Mike
  • Westhues, Stefan
  • Guertler, Christoph

Abstract

A process for preparing polyether carbonate alcohols by attaching cyclic ethylene carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that at least one compound according to formulae X[VO3] (1), Y2[WO4] (2), or Y3[VO4] (3), wherein X=alkali metal, preferably potassium or cesium, and Y=potassium or cesium, is used.

IPC Classes  ?

74.

PROCESS FOR PREPARING POLYETHER CARBONATE ALCOHOLS

      
Application Number 17628257
Status Pending
Filing Date 2020-08-12
First Publication Date 2022-08-25
Owner
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
  • Covestro Deutschland AG (Germany)
Inventor
  • Wolf, Aurel
  • Westhues, Stefan
  • Schuetze, Mike
  • Walker, Karolina
  • Guertler, Christoph

Abstract

A process for preparing polyether carbonate alcohols by attaching cyclic propylene carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that at least one compound according to formula MnX (I) is used as a catalyst, wherein M is selected from the alkali metal cations Li+, Na+, K+ and Cs+, X is selected from the anions VO3−, WO42−, MoO42− and VO43−, n is 1, if X═VO3−, n is 2, if X═WO42− or MoO42−, and n is 3, if X═VO43−.

IPC Classes  ?

  • C08G 64/30 - General preparatory processes using carbonates

75.

Housing parts, housings and processes for preparing the same

      
Application Number 17626400
Grant Number 11910571
Status In Force
Filing Date 2020-07-13
First Publication Date 2022-08-18
Grant Date 2024-02-20
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wu, Guanghui
  • Yang, Fan
  • Hong, Ke

Abstract

The present invention relates to a housing part, a housing and an electronic device. The housing part according to this invention comprises a first layer, said first layer being molded from a first composition comprising a1) 50-90 wt. % of a first amorphous polymer and b1) 10-50 wt. % of a first thermally conductive filler, the first composition having a thermal conductivity (TC1) of 4-40 W/(m*K), a second layer, said second layer being molded from a second composition comprising a2) 50-90 wt. % of a second amorphous polymer and b2) 10-50 wt. % of a second thermally conductive filler, the second composition having a thermal conductivity (TC2) of 0.5-10 W/(m*K), and the second layer being molded over the first layer by leaving at least one area of the first layer not being over-molded with the second layer for being exposed to at least one heat source, wherein, TC1 is at least 2 W/(m*K) larger than TC2, the amounts of al and b1 are based on the total weight of the first composition, the amounts of a2 and b2 are based on the total weight of the second composition, and the thermal conductivity is measured in-plane according to ASTM E1461-01. The housing part provided in this invention has high heat dissipating efficiency and mechanical properties as well as high dimensional stability.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C 45/16 - Making multilayered or multicoloured articles
  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • B29K 69/00 - Use of polycarbonates as moulding material
  • B29L 31/18 - Heat-exchangers or parts thereof

76.

PROCESS FOR THE DECOMPOSITION OF POLYETHER-POLYURETHANE

      
Application Number 17619100
Status Pending
Filing Date 2020-08-10
First Publication Date 2022-08-18
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Reisky, Lukas
  • Jaeger, Gernot

Abstract

A process is provided, by means of which polyurethanes, which have been formed from polyether polyols and aromatic isocyanates, can be decomposed to polyether polyols and aromatic amines.

IPC Classes  ?

  • C08G 71/04 - Polyurethanes
  • C12N 9/80 - Hydrolases (3.) acting on carbon to nitrogen bonds other than peptide bonds (3.5) acting on amide bonds in linear amides
  • C12P 13/02 - Amides, e.g. chloramphenicol

77.

PROCESS FOR PREPARING BISPHENOLE A (BPA) IN THE PRESENCE OF HYDROXYACETONE

      
Application Number 17627938
Status Pending
Filing Date 2020-08-24
First Publication Date 2022-08-18
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Uy, Jerico Jayson
  • Sluyts, Erik

Abstract

The present invention relates to a process for preparing bisphenol A in the presence of hydroxyacetone without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst, wherein at least part of the sulfur containing cocatalyst is not chemically bound to the ion exchange resin catalyst. Moreover, the present invention provides a process for preparing polycarbonate and a composition comprising bisphenol A and at least one specific impurity which is formed in the production of bisphenol A.

IPC Classes  ?

  • C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
  • C07C 37/84 - Separation; Purification; Stabilisation; Use of additives by physical treatment by crystallisation
  • C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation

78.

PROCESS OF PREPARING ALLOPHANATE- AND/OR THIOALLOPHANATE GROUP-CONTAINING COMPOUNDS

      
Application Number 17624763
Status Pending
Filing Date 2020-07-06
First Publication Date 2022-08-11
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Laas, Hans-Josef
  • Stempfle, Florian
  • Laemmerhold, Kai
  • Beuck, Saskia
  • Pires, Raul
  • Guertler, Christoph
  • Yuva, Nusret
  • Born, Ralph-Georg
  • Thiel, Daniel
  • Guduguntla, Sureshbabu
  • Leitner, Walter

Abstract

The invention relates to a process of preparing allophanate- and/or thioallophanate group-containing compounds comprising the following steps: reacting A) at least one component having at least one uretdione group with B) at least one component having at least one hydroxyl and/or thiol group, in the presence C) of at least one catalyst, containing a structural element of the general formulae (I) and/or (II), wherein R1, R2, R3, R4, R5 and R6 independently of each other represent the same or different radicals meaning saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic, araliphatic or aromatic organic radicals with 1 to 18 carbon atoms that are substituted or unsubstituted and/or have heteroatoms in the chain, the radicals being capable of forming, even when combined with each other and optionally together with an additional heteroatom, rings with 3 to 8 carbon atoms that can optionally be further substituted, wherein R3, R4, R5 and R6 independently of each other also can represent hydrogen, and R7 represents hydrogen or a carboxylate anion (COO−), the at least one component A) having at least one uretdione group being polyaddition compounds A2) that can be obtained by reacting isocyanate-functional uretdione groups A1) with alcohols and/or amines that have a free isocyanate group content of less than 5 wt. % in their solvent-free form.

IPC Classes  ?

  • C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
  • C08G 18/20 - Heterocyclic amines; Salts thereof
  • C08L 75/04 - Polyurethanes
  • C09D 175/04 - Polyurethanes

79.

METHOD FOR RECOVERING RAW MATERIALS FROM POLYURETHANE PRODUCTS

      
Application Number 17617430
Status Pending
Filing Date 2020-06-24
First Publication Date 2022-08-11
Owner
  • Covestro Deutschland AG (Germany)
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Steffens, Friedhelm
  • Pohl, Sebastian
  • Majidi Salehi, Shabnam
  • Krause, Jonas

Abstract

The invention relates to a method for recovering raw materials from polyurethane products, comprising the steps of (A) providing a polyurethane product that is based on an isocyanate component and a polyol component; (B) reacting the polyurethane product with a (mono- or polyvalent) alcohol in the presence of a catalyst, thereby obtaining a first product mixture; (C) obtaining the polyols from the first product mixture, comprising (C.I) mixing, without prior removal of any water that might be contained in the first product mixture, the first product mixture obtained in step (B) with an organic solvent that is not completely miscible with the alcohol used in step (B), and phase separation into a first alcohol phase and a first solvent phase; (C.II) processing the first solvent phase and obtaining polyols; and preferably (D) obtaining amines.

IPC Classes  ?

  • C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups

80.

METHOD FOR PRODUCING POLYETHER ESTER CARBONATE POLYOLS

      
Application Number 17612413
Status Pending
Filing Date 2020-06-26
First Publication Date 2022-07-28
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Mueller, Thomas Ernst
  • Guertler, Christoph
  • Subhani, Muhammad Afzal
  • Leitner, Walter

Abstract

A method for producing polyether ester carbonate polyols by catalytically adding alkylene oxide and carbon dioxide to an H-functional initiator substance in the presence of a double metal cyanide catalyst. The method comprises the following steps: (α) feeding a partial amount of H-functional initiator substance and/or a suspension agent which does not have any H-functional groups into a reactor, optionally together with DMC catalyst, (γ) adding alkylene oxide and optionally carbon dioxide to the reactor during the reaction. The method is characterized in that in step (γ) lactide is added to the reactor.

IPC Classes  ?

  • C08G 64/18 - Block or graft polymers
  • C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers

81.

METHOD FOR THE RECYCLING OF POLYURETHANE MATERIAL WASTE FOR PRODUCING CHEMICAL FEEDSTOCK FOR THE PRODUCTION OF ISOCYANATES AND POLYURETHANES

      
Application Number 17614626
Status Pending
Filing Date 2020-05-26
First Publication Date 2022-07-21
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Bulan, Andreas
  • Weber, Rainer

Abstract

The invention relates to a method for recycling polyurethane material waste (18a) for producing chemical feedstock for the production of isocyanates (10a) and then polyurethanes (16a), in which method, proceeding from polyurethane material waste (18a), carbon dioxide (1a) and hydrocarbons (1c) are generated by pyrolysis (1), the carbon dioxide (1a; 4a) is converted by electrolysis (5) into carbon monoxide (7b) and hydrogen (7a), as appropriate, the carbon monoxide (7b; 7c) obtained is converted via phosgene to isocyanate (10a) and the isocyanate (10a) can be further processed into new polyurethane material (16a).

IPC Classes  ?

  • C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
  • C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
  • C08J 11/10 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
  • C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
  • C25B 1/00 - Electrolytic production of inorganic compounds or non-metals

82.

METHOD FOR PREPARING POLYETHER CARBONATE POLYOLS

      
Application Number 17607256
Status Pending
Filing Date 2020-06-03
First Publication Date 2022-07-21
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Laemmerhold, Kai
  • Hofmann, Joerg
  • Hilken, Persefoni
  • Welsch, Nicole
  • Nefzger, Hartmut

Abstract

A method for preparing polyether carbonate polyols by means of the following steps: (i) adding alkylene oxide and carbon dioxide onto an H-functional starter substance in the presence of a double metal cyanide catalyst or a metal complex catalyst based on the metals zinc and/or cobalt to obtain a reaction mixture containing the polyether carbonate polyol, (ii) introducing at least one component K to the reaction mixture containing the polyether carbonate polyol, characterized in that the component K is at least one compound selected from the group consisting of monocarboxylic acids, polycarboxylic acids, hydroxycarboxylic acids and vinylogous carboxylic acids, wherein compounds containing a phosphorus-oxygen bond or compounds of phosphorus that can form one or more P—O bonds through reaction with OH-functional compounds, and acetic acid are excluded from component K.

IPC Classes  ?

  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds

83.

METHOD FOR THE PRODUCTION OF EPOXY-GROUP TERMINATED POLYOXAZOLIDINONES

      
Application Number 17613757
Status Pending
Filing Date 2020-06-05
First Publication Date 2022-07-21
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Frick-Delaittre, Elena
  • Westhues, Stefan
  • Reimann, Yvonne
  • Koopmans, Carsten
  • Weikard, Jan
  • Wolf, Aurel
  • Laemmerhold, Kai
  • Guertler, Christoph
  • Thiel, Daniel
  • Schlundt, Waldemar
  • Glassner, Mathias

Abstract

A process for producing an epoxy-group terminated polyoxazolidinone comprising the copolymerization of a polyisocyanate compound (A) with two or more isocyanate groups with a polyepoxide compound (B) with two or more epoxy groups in the presence of a specific catalyst (C), wherein the molar ratio of the epoxy groups of the polyepoxide compound (B) to the isocyanate groups of the polyisocyanate compound (A) is from 2.6:1 and less than 25:1, and wherein the copolymerization is operated in the absence of an additional solvent (D-1) with a boiling point higher than 170° C., preferred higher than 165° C., more preferred higher than 160° C., and most preferred higher than 150° C. at 1 bar (absolute). The epoxy-group terminated polyoxazolidinones resulting from the process are also provided.

IPC Classes  ?

84.

Heat-conducting polycarbonates having improved flame protection by means of barium sulfate

      
Application Number 17604078
Grant Number 11912865
Status In Force
Filing Date 2020-04-09
First Publication Date 2022-07-14
Grant Date 2024-02-27
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Schirwitz, Christopher
  • Hungerland, Tim
  • Grueter-Reetz, Tanja
  • Kruells, Helmut

Abstract

The present invention relates to a thermoplastic composition comprising at least one aromatic polycarbonate, talc, at least one anhydride-modified alpha-olefin polymer, at least one organic flame retardant selected from: fluoropolymer-containing anti-drip agents, fluorinated sulfonic acid salts, organic phosphoric acid esters, phosphazenes or mixtures of at least two of the abovementioned agents and barium sulfate. The invention further relates to a production process for such a composition and to a molded article producible from this composition. The composition contains barium sulfate in an amount of ≥3% by weight based on the total weight of the composition. ≥5% by weight is preferred.

IPC Classes  ?

  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • C08K 3/34 - Silicon-containing compounds
  • C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
  • C08K 5/42 - Sulfonic acids; Derivatives thereof
  • C08G 64/04 - Aromatic polycarbonates
  • C08J 3/00 - Processes of treating or compounding macromolecular substances
  • C08K 3/22 - Oxides; Hydroxides of metals
  • C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

85.

Modified monooxygenases for the manufacture of hydroxylated hydrocarbons

      
Application Number 17607922
Grant Number 11674161
Status In Force
Filing Date 2020-06-18
First Publication Date 2022-07-14
Grant Date 2023-06-13
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Guo, Ruijing
  • Lin, Jen-Chieh
  • Tao, Sha
  • Qian, Ying
  • Qiu, Chenggang
  • Chen, Kequan
  • Li, Kang

Abstract

The present invention relates to novel monooxygenases which are useful in the hydroxylation of aromatic hydrocarbons. They are particularly useful for the production of 1-naththol and 7-hydroxycoumarin from naphthol and 7-Ethoxycoumarin, respectively.

IPC Classes  ?

  • C12N 9/00 - Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes
  • C12P 7/22 - Preparation of oxygen-containing organic compounds containing a hydroxy group aromatic
  • C12N 9/02 - Oxidoreductases (1.), e.g. luciferase
  • C12P 17/06 - Oxygen as only ring hetero atoms containing a six-membered hetero ring, e.g. fluorescein

86.

Method for producing fiber-reinforced plastics

      
Application Number 17607193
Grant Number 11833767
Status In Force
Filing Date 2020-04-24
First Publication Date 2022-07-14
Grant Date 2023-12-05
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Froebel, Sascha
  • Kilian, Benedikt
  • Raffel, Bolko
  • Bruening, Dirk

Abstract

The invention relates to a pultrusion method for producing fiber-reinforced plastics, to carrying said method out by computer-assisted simulation and to a suitable underlying thermodynamic model.

IPC Classes  ?

  • B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die

87.

MODIFIED MONOOXYGENASES FOR THE MANUFACTURE OF HYDROXYLATED HYDROCARBONS BASED ON SUBSTITUTION OF AMINO ACIDS BY ALANINE

      
Application Number 17607918
Status Pending
Filing Date 2020-06-18
First Publication Date 2022-07-14
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Guo, Ruijing
  • Lin, Jen-Chieh
  • Tao, Sha
  • Qian, Ying
  • Qiu, Chenggang
  • Chen, Kequan
  • Li, Kang

Abstract

The present invention relates to novel monooxygenases which are useful in the hydroxylation of aromatic hydrocarbons. They are particularly useful for the production of 1-naththol and 7-hydroxycoumarin from naphthol and 7-Ethoxycoumarin, respectively.

IPC Classes  ?

  • C12N 9/02 - Oxidoreductases (1.), e.g. luciferase
  • C12P 7/22 - Preparation of oxygen-containing organic compounds containing a hydroxy group aromatic

88.

PROCESS FOR PRODUCING POLYOXYALKYLENE-POLYOL MIXTURES

      
Application Number 17611942
Status Pending
Filing Date 2020-05-19
First Publication Date 2022-07-14
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Lorenz, Klaus
  • Rojo-Wiechel, Elena
  • Frick-Delaittre, Elena
  • Marazita, Martin
  • Albers, Reinhard

Abstract

The present invention relates to a process for direct production of mixtures of short-chain high-functionality polyoxyalkylene polyols and long-chain low-functionality polyoxyalkylene polyols. The short-chain high-functionality polyoxyalkylene polyol component is obtained by alkylene oxide addition onto high-functionality H-functional starter compounds while the long-chain low-functionality polyoxyalkylene polyol component is correspondingly obtained by alkylene oxide addition onto low-functionality H-functional starter compounds. The invention further relates to the resulting polyoxyalkylene polyols and to the reaction thereof to produce polyurethanes.

IPC Classes  ?

89.

METHOD FOR THE PURIFICATION OF ISOCYANATES

      
Application Number 17609154
Status Pending
Filing Date 2020-04-30
First Publication Date 2022-07-07
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Eggert, Christoph
  • Fischer, Thomas
  • Geron, Ulrich
  • Esser, Ulrich

Abstract

The invention relates to a process for purifying at least one isocyanate selected from the group consisting of aliphatic, cycloaliphatic, araliphatic isocyanates and mixtures thereof, to a process for producing at least one isocyanate selected from the group consisting of aliphatic, cycloaliphatic, araliphatic isocyanates and mixtures thereof, to the isocyanate obtainable by this process, to a polyurethane constructed from at least one such isocyanate, to the use of this isocyanate and to an optical component containing at least one polyurethane according to the invention.

IPC Classes  ?

90.

IMPROVED DISTILLATION CAPABILITY BY DILUTION WITH A COMPONENT TO BE SEPARATED OFF

      
Application Number 17612065
Status Pending
Filing Date 2020-06-20
First Publication Date 2022-07-07
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Suetterlin, Jan
  • Hermes, Helen
  • Fischer, Thomas
  • Stump, Joachim
  • Geron, Ulrich

Abstract

The invention relates to a method for purifying at least one reaction product of at least one diisocyanate, comprising at least the following steps: (A) providing a mixture A at least containing the at least one reaction product of the at least one diisocyanate and, if applicable, the at least one diisocyanate, (B) adding, if applicable more of, at lease one diisocyanate to mixture A from step (A) in order to obtain a mixture B, and (C) separating off the at least one diisocyanate from mixture B from step (B) by distillation in order to obtain the purified at least one reaction product of the at least one diisocyanate. Furthermore, the present invention comprises the reaction product of at least one diisocyanate which can be obtained by the method according to the invention and the use thereof for producing polyurethane foams, polyurethane hydrogels, polyurethane elastomers, varnishes and bonding adhesives.

IPC Classes  ?

  • B01D 3/34 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08G 18/48 - Polyethers
  • C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
  • B01D 3/12 - Molecular distillation

91.

AMINE-INITIATED POLYOLS AS NON-EMISSIVE CATALYSTS IN HR FOAM

      
Application Number 17607656
Status Pending
Filing Date 2020-06-24
First Publication Date 2022-07-07
Owner Covestro Intellectual Property GmbH & Co. & KG (Germany)
Inventor
  • Lindner, Stefan
  • Lorenz, Klaus

Abstract

A process for producing an amine-based polyol by reacting a tertiary amine with various epoxides in two or more steps. The present disclosure also relates to the amine-based polyol obtained by this process and the use of the amine-based polyol in the production of polyurethanes, wherein the polyurethanes are preferably synthesized based on toluene diisocyanate (TDI) and are preferably molded foams.

IPC Classes  ?

  • C08G 18/50 - Polyethers having hetero atoms other than oxygen
  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds

92.

METHOD FOR THE PRODUCTION OF ISOCYANATE-GROUP TERMINATED POLYOXAZOLIDINONES

      
Application Number 17607653
Status Pending
Filing Date 2020-06-05
First Publication Date 2022-06-30
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Frick-Delaittre, Elena
  • Westhues, Stefan
  • Reimann, Yvonne
  • Koopmans, Carsten
  • Weikard, Jan
  • Wolf, Aurel
  • Mager, Dieter
  • Guertler, Christoph

Abstract

A process for producing an isocyanate-group terminated polyoxazolidinone comprising the copolymerization of a polyisocyanate compound (A) with two or more isocyanate groups with a polyepoxide compound (B) with two or more epoxy groups in the presence of a specific catalyst (C), wherein the molar ratio of the isocyanate groups of the polyisocyanate compound (B) to the epoxy groups of the polyepoxide compound (A) is larger than 2:1 and less than 25:1. The resulting isocyanate-group terminated polyoxazolidinones is also provided.

IPC Classes  ?

  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08G 18/22 - Catalysts containing metal compounds
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines

93.

PROCESS FOR THE CARBONYLATION OF EPOXIDES

      
Application Number 17607737
Status Pending
Filing Date 2020-06-05
First Publication Date 2022-06-30
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Langanke, Jens
  • Leven, Matthias
  • Guertler, Christoph
  • Raju, Suresh

Abstract

A process for the carbonylation of epoxides in the presence of catalyst systems, wherein the carbonylation takes place in the presence of carbon monoxide, and wherein the catalyst system contains a molybdenum-based compound. Carbonylation products as well as carbonylation derivatives and to the use of the claimed catalyst systems for the carbonylation of epoxides are also provided.

IPC Classes  ?

  • C07D 305/12 - Beta-lactones
  • C08G 63/08 - Lactones or lactides
  • C08G 63/82 - Preparation processes characterised by the catalyst used
  • B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
  • B01J 31/18 - Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony
  • B01J 31/22 - Organic complexes

94.

Method for preparing a mixed silane-terminated polymer

      
Application Number 17611931
Grant Number 11795266
Status In Force
Filing Date 2020-05-25
First Publication Date 2022-06-30
Grant Date 2023-10-24
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Stempfle, Florian
  • Laas, Hans-Josef
  • Thiebes, Christoph

Abstract

The present invention relates to a process for preparing a mixed silane-terminated polymer by reacting a polyol component A) with a diisocyanate component B) comprising 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (isophorone diisocyanate), at least one isocyanatosilane C) and an aminosilane E), in which the urethanization reaction is carried out in the presence of at least one catalyst D) which is free of organically bonded tin. The invention further relates to the use of the polymers thus obtained.

IPC Classes  ?

  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/71 - Monoisocyanates or monoisothiocyanates
  • C08G 18/22 - Catalysts containing metal compounds
  • C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G 18/48 - Polyethers
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic

95.

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYOXYALKYLENE POLYOLS

      
Application Number 17612071
Status Pending
Filing Date 2020-05-29
First Publication Date 2022-06-30
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Hofmann, Joerg
  • Schmitz, Thorsten
  • Sander, Philipp
  • Eichmann, Marcus

Abstract

The invention relates to a process for producing a polyoxyalkylene polyol, comprising depositing an alkylene oxide onto an H-functional starter substance in the presence of a double metal cyanide (DMC) catalyst, wherein the alkylene oxide is dosed at the mass flow rate m(alkylene oxide), the H-functional starter substance is dosed at the mass flow rate m(starter substance), and the double metal cyanide (DMC) catalyst is dosed in a dispersant at the mass flow rate m(DMC) continuously into the reactor with the reaction volume V during the reaction, and the resulting reaction mixture is continuously removed from the reactor, and wherein the quotient of the sum of the mass flow rates Σ{dot over (m)} of {dot over (m)}(alkylene oxide), {dot over (m)}(starter substance) and {dot over (m)}(DMC) to give the reaction volume V in the steady state is greater than or equal to 1200 g/(h·L).

IPC Classes  ?

  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds

96.

A METHOD FOR PREPARING A POLYURETHANE COMPOSITE BY A VACUUM INFUSION PROCESS

      
Application Number 17607261
Status Pending
Filing Date 2020-06-02
First Publication Date 2022-06-23
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Wu, Di
  • Gu, Yongming
  • Zheng, Ian
  • Cheng, Hao
  • Han, Xiaojun
  • Zhang, Hui

Abstract

A method for preparing a polyurethane composite by a vacuum infusion process, a polyurethane composite prepared by said method and use thereof. The method for preparing a polyurethane composite by a vacuum infusion process of the present invention can reduce raw materials and production costs.

IPC Classes  ?

  • B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
  • B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
  • B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
  • C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
  • C08J 9/40 - Impregnation

97.

SILOXANE-CONTAINING BLOCK COPOLYCARBONATES HAVING A SMALL DOMAIN SIZE

      
Application Number 17600846
Status Pending
Filing Date 2020-03-30
First Publication Date 2022-06-23
Owner COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG (Germany)
Inventor
  • Meyer, Alexander
  • Liesenfelder, Ulrich
  • Huggins, John

Abstract

The present invention relates to a method for preparing a polysiloxane-polycarbonate block co-condensate, wherein a siloxane component containing both aliphatic and aromatic groups is used as a mediator. The invention also relates to a polycarbonate composition and also to the use of the special siloxane component for reducing the particle size distribution of the siloxane domains in a polysiloxane-polycarbonate block co-condensate.

IPC Classes  ?

  • C08G 77/448 - Block- or graft-polymers containing polysiloxane sequences containing polycarbonate sequences
  • C08G 77/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon

98.

PROCESS FOR PREPARING A RETICULATED FLEXIBLE POLYURETHANE FOAM

      
Application Number 17604602
Status Pending
Filing Date 2020-05-26
First Publication Date 2022-06-23
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Zhang, Jun
  • Yu, Hui
  • Wang, Qingyun

Abstract

A one-step process for preparing a reticulated flexible polyurethane foam, a reticulated flexible polyurethane foam prepared by the process, and the use of the flexible polyurethane foam in sofa, mattress and the like are provided. The process is a one-step process, which does not comprise the step of the reticulation treatment, and therefore is safe, environmentally friendly and highly efficient.

IPC Classes  ?

  • C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates

99.

DRYING APPARATUS AND USE THEREOF AND PROCESS FOR PRODUCING AN ISOCYANATE USING THE DRYING APPARATUS

      
Application Number 17598946
Status Pending
Filing Date 2020-03-31
First Publication Date 2022-06-16
Owner
  • Covestro Intellectual Property GmbH & Co. KG (Germany)
  • Covestro Deutschland AG (Germany)
Inventor
  • Zechlin, Joachim
  • Plum, Alexander
  • Kuhlmann, Martin

Abstract

The present invention relates to a drying apparatus for evaporating volatile constituents from a starting material to be dried, to a process for producing an isocyanate using this drying apparatus and to the use of the drying apparatus for drying distillation bottoms streams, oil-containing waste, waste paint or coating materials, sewage sludges, mineral substances and coal slurries contaminated with organic compounds. In the drying apparatus the evaporated constituents (vapours) are passed into a condenser via a vapor dome and a vapor conduit. The drying apparatus has the feature that partial condensation of the vapours in the vapor dome and/or in the vapor conduit is intentionally allowed or induced during operation, and condensed constituents of the vapours are discharged from the drying apparatus via means installed for this purpose in the vapor dome and/or the vapour conduit.

IPC Classes  ?

  • F26B 25/00 - DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM - Details of general application not covered by group or
  • C07C 263/20 - Separation; Purification
  • C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

100.

METHOD OF STORING AN ISOCYANATE-REACTIVE COMPONENT

      
Application Number 17603034
Status Pending
Filing Date 2020-04-09
First Publication Date 2022-06-16
Owner Covestro Intellectual Property GmbH & Co. KG (Germany)
Inventor
  • Li, Zhijiang
  • Gu, Yongming
  • Sun, Guobin
  • Zhang, Hui

Abstract

The invention relates to a method of storing an isocyanate-reactive component for preparing a polyurethane composite, the stably stored isocyanate-reactive component obtained by the method, and the polyurethane composite prepared therefrom.

IPC Classes  ?

  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/67 - Unsaturated compounds having active hydrogen
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08L 75/04 - Polyurethanes
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