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. 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) 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 18/08 - 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
• C08G 18/30 - Low-molecular-weight compounds
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C09D 175/08 - Polyurethanes from polyethers
• C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen

Abstract

To provide a composition capable of forming a polyurethane foam having excellent filling properties, surface properties, and strength. A polyurethane resin composition containing a polyol component and a polyisocyanate component, in which the polyurethane resin composition contains a compound (A) as the polyol component or a component other than the polyol component, the compound (A) has a molecular weight of 220 or less, has two or more reactive groups capable of reacting with an isocyanate in one molecule, and has one reactive group with a reaction activity with an isocyanate group that is higher than the reaction activity with an isocyanate group of the other reactive groups of compound (A), and the ratio of the hydroxyl value of the compound (A) to the hydroxyl value of the polyol component is 1.2 or more, provided that when the compound (A) falls under the polyol component, the phrase "the hydroxyl value of the polyol component" refers to the hydroxyl value of the polyol component other than the compound (A).

IPC Classes  ?

• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
• 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
• 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
• C08K 5/00 - Use of organic ingredients
• C08G 101/00 - Manufacture of cellular products

Abstract

[Problem] 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 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/20 - Heterocyclic amines; Salts thereof
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
• 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
• C08G 101/00 - Manufacture of cellular products

Abstract

To provide a composition capable of forming a rigid polyurethane foam having air permeability. A composition for forming a rigid polyurethane foam, the composition containing a polyol component, a polyisocyanate component, and an oil having no hydrophilic group in its molecule.

IPC Classes  ?

• 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 18/16 - Catalysts
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/48 - Polyethers
• C08G 18/50 - Polyethers having hetero atoms other than oxygen
• C08G 18/66 - Compounds of groups , , or
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08L 75/08 - Polyurethanes from polyethers
• C08L 91/00 - Compositions of oils, fats or waxes; Compositions of derivatives thereof
• C08L 83/04 - Polysiloxanes
• C08G 18/08 - Processes
• C08G 101/00 - Manufacture of cellular products

Abstract

23410232484103392341022). According to the invention, 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 invention.

IPC Classes  ?

• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques

Abstract

23410232484103392341022). 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. The invention further relates to a method for producing a molding compound having improved properties.

IPC Classes  ?

• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques

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 18/10 - 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
• C08G 18/08 - Processes

Abstract

The invention relates to a device and a method for the continuous production of particulate thermoplastic polymers (P) by reacting at least two copolymerizable monomers (A, B) in a spray reactor (1), where the at least two copolymerizable monomers (A, B) are mixed with one another via a mixing means (2) assigned to the spray reactor (1) and this reaction mixture (RM) is introduced continuously via a reaction mixture feed line (3, 3a, 3b) into the top of the spray reactor (1), where it is sprayed by a spraying means (5) into the reaction space (6) and flows in the direction of the base region (7) of the spray reactor (1), where the particulate thermoplastic polymer (P) is taken off via a product discharge line (8), where via a carrier gas feed line (9) provided in the top region (4) of the spray reactor (1) a carrier gas (G) heated via a heat exchanger (10) assigned to the carrier gas feed line (9) is introduced into the spray reactor (1) and is discharged above the base region (7) of the spray reactor (1) via a carrier gas offtake (11), the method being characterized in that the at least two copolymerizable monomers (A, B) are reacted to give the thermoplastic polymer in a reaction zone (12) extending from the top region (4) of the spray reactor (1) to a cooling fluid introduction means (14) disposed above the base region (7) and the polymer is held above its melting point and then cooled down below its solidification temperature in a cooling zone (13) extending from the cooling fluid introduction means (14) to the base region (7) of the spray reactor (1), to give the particulate thermoplastic polymer (P). The invention further relates to a particulate thermoplastic polymer produced or producible according to the method of the invention.

IPC Classes  ?

• B01J 2/04 - Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
• B01J 19/26 - Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
• C08J 3/12 - Powdering or granulating
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

The invention relates to a method for producing a thermoplastic polyurethane from an OH-functional prepolymer and an isocyanate using a reactive extrusion process, having the steps of: a) introducing a prepolymer stream containing OH-functional prepolymers into an extruder, b) introducing an isocyanate feed stream into the extruder downstream of the introduction point of the prepolymer stream in an extruder working direction, said introduction process being carried out such that the OH-functional prepolymers contained in the prepolymer stream and the polyisocyanate contained in the isocyanate feed stream are in an isocyanate index of 85 to 105, and c) reacting the prepolymer stream with the isocyanate feed stream in the extruder, thereby obtaining the thermoplastic polyurethane as the extrudate, wherein gases and/or gaseous byproducts of the reaction are removed from the extruder by applying a negative pressure of 50 to 700 mbar below normal pressure by means of a degassing shaft arranged on the extruder, and the degassing shaft is positioned downstream of the introduction point of the isocyanate feed stream and in the last third of the extruder in the extruder working direction. Additionally, the invention relates to a device for carrying out the method according to the invention, to a thermoplastic polyurethane which can be obtained or is obtained using the method according to the invention, and to the use of the thermoplastic polyurethane in a shaping method, thereby melting the thermoplastic polyurethane, in particular in order to produce interior components for vehicles.

IPC Classes  ?

• B29B 7/84 - Venting or degassing
• B29C 48/29 - Feeding the extrusion material to the extruder in liquid form
• B29C 48/76 - Venting means; Degassing means
• B29C 48/92 - Measuring, controlling or regulating
• B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material

Abstract

The invention relates to a process for continuous solvent-free preparation of hydroxy-terminated prepolymers by reaction of one or more monomeric diisocyanates with one or more polyols having a hydroxyl number of 600 mg KOH/g to 1830 mg KOH/g determined in accordance with DIN EN ISO 4629-2:2016 in a reaction zone which comprises one or more tubular reactors connected in series and having continuous flow therethrough.

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
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The invention relates to a method for adjusting the molecular weight distribution of a polymer in a preferably predominantly irreversible polycondensation reaction and/or polyaddition reaction of the type AA+BB. The invention further relates to the polymer, which is obtained by the method according to the invention, and to the further reaction of this polymer by dosing further monomers. Moreover, the invention relates to a device for carrying out the method according to the invention.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• 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

Abstract

The invention relates to a thermoplastic polyurethane obtainable by reacting at least the following synthesis components: one or more aliphatic diisocyanates A) having a molecular weight of 140 g/mol to 170 g/mol and one or more aliphatic diols B) having a molecular weight of 62 g/mol to 120 g/mol, where the synthesis components used to produce the thermoplastic polyurethane consist of at least 95 wt% of one or more aliphatic diisocyanates A) and one or more aliphatic diols B), based on the total mass of the synthesis components used, with the one or more aliphatic diisocyanates A) and the one or more aliphatic diols B) being used in a molar ratio in the range from 1.0: 0.95 to 0.95: 1.0, characterized in that the ratio (formula I) of the thermoplastic polyurethane lies in a range from 3 to 15, and also to a method for producing the thermoplastic polyurethane and compositions, mouldings, films and/or fibres comprising the thermoplastic polyurethane.

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
• C08G 18/08 - Processes

Abstract

The invention relates to a thermoplastic polyurethane that is the reaction product of one or more diols with one or more aliphatic, cycloaliphatic and/or ar aliphatic diisocyanates, where the reaction product has a urethane group weight content of greater than 42 % and its weight average molecular weight increases when heated. Methods for its use are also disclosed herein where the reaction product is heated inside a extruder, and the weight average molecular weight increases therein.

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
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

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, where 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 steps of: a) preparing a mixture of a portion of component (A), a portion 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 give a thermoplastic polyurethane. The invention further relates to thermoplastic polyurethane obtainable or obtained by the process of the invention, and also to a composition comprising the thermoplastic polyurethane of the invention and to the use thereof.

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
• C08G 18/08 - Processes

Abstract

wPolymerww of the thermoplastic aliphatic polyurethane polymer. The invention also relates to compositions containing such polyurethane polymers, to a process for the preparation thereof and to the use of such 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
• C08G 18/08 - Processes

Abstract

The present invention relates to a method for producing a thermoplastic polyurethane with a low colour number, as well as to the thermoplastic polyurethane obtained according to said method and to the use thereof.

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
• C08G 18/08 - Processes

Abstract

The invention relates to a thermoplastic polyurethane obtained by reacting at least the following structural components: one or more aliphatic diisocyanates A) with a molecular weight of 140 g/mol to 170 g/mol; and one or more aliphatic diols B) with a molecular weight of 62 g/mol to 120 g/mol; wherein up to at least 95 wt.% of the structural components used to create the thermoplastic polyurethane consist of one or more aliphatic diisocyanates A) and one or more aliphatic diols B), in relation to the total mass of the structural components used, wherein the one or more aliphatic diisocyanates A) and the one or more aliphatic diols B) are used in a molar ratio of 1.0 : 0.95 to 0.95 : 1.0, characterised in that the ratio (I) of the thermoplastic polyurethane polymer is in the region of 10 to 40. The invention also relates to a method for the production thereof, compositions, moulded bodies, films and/or fibres containing the thermoplastic polyurethane.

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
• C08G 18/08 - Processes

Abstract

The present invention relates to a process for preparing polyoxyalkylene polyester polyols by reacting a starter compound having Zerewitnoff-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 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 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/48 - Polyethers
• C08G 101/00 - Manufacture of cellular products
• C09D 175/04 - Polyurethanes
• C08G 63/672 - Dicarboxylic acids and dihydroxy compounds
• C08G 63/48 - Polyesters chemically modified by esterification by resin acids

Abstract

A method for producing an object comprises the step of producing the object by means of an additive manufacturing process from a construction material. The construction material comprises a first polyurethane polymer which has: a weight percentage ratio of O to N of ≥ 2 to ≤ 2.5, determined by elementary analysis; a weight percentage ratio of N to C of ≥ 0.1 to ≤ 0.25, determined by elementary analysis; a full-width at half maximum of the melting peak of ≤ 20 K, determined by dynamic differential scanning calorimetry DSC (2nd heating at heating rate 20 K/min); and a difference between the melting temperature and the recrystallisation temperature of ≥ 5 K and ≤ 100 K, determined by dynamic differential scanning calorimetry DSC (2nd heating) at a heating and cooling rate of 20 K/min.

IPC Classes  ?

• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]

Abstract

The invention relates to a method for producing polyurethane foams by reacting the following components: A polyol components, containing A1 40 to 100 parts by weight of polyether carbonate polyol with a hydroxyl number according to DIN 53240-1 (June 2013) of 20 mg KOH/g to 120 mg KOH/g, A2 0 to 60 parts by weight of polyether polyol with a hydroxyl number according to DIN 53240-1 (June 2013) of 20 mg KOH/g to 250 mg KOH/g, and an ethylene oxide content of 0 to 60 wt.%, wherein polyether polyol A2 is free of carbonate units; B B1 a catalyst, and B2 optionally auxiliary and additional substances; C water and/or physical blowing agents, with D di- and/or polyisocyanates, wherein the production occurs at a characteristic value of 90 to 120, characterised in that the production occurs in the presence of 0.01 to 10.00 parts by weight of a component K, in relation to the total of the parts by weight of the component A1 + A2 = 100 parts by weight, and the component K is a compound according to formula (II), wherein R1= represents a substituted or unsubstituted C1-C22 alkyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkenyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkoxy group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C6-C18 aryl group, a substituted or unsubstituted C6-C18 aryloxy group, heteroaryl group, thiols, phosphorous compounds, carboxylates, isocyanates, amines, carbamines, amides or carbamides, R2= can be the same or different and represents a substituted or unsubstituted C1-C22 alkyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkenyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkoxy group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C6-C18 aryl group, a substituted or unsubstituted C6-C18 aryloxy group, and X = can be the same or different and represents F, Cl, Br or I.

IPC Classes  ?

• C08G 18/44 - Polycarbonates
• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
• 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
• C08G 101/00 - Manufacture of cellular products

Abstract

22020 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 R1and R212062072020 radicals or the N-bonded substituents R1and 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  ?

• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/20 - Heterocyclic amines; Salts thereof
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates

Abstract

The present invention relates to a method of preparing an apparatus (or a plant comprising multiple apparatuses), for example a heat exchanger, an evaporator or a distillation column, for use in a process (especially one operated continuously) for concentration of a mineral acid by evaporating water, wherein the apparatus or plant comprises (at least) one device resistant to the mineral acid and the device is rinsed with an aqueous alkali metal hydroxide solution of 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 period of 2 hours to 7 days.

IPC Classes  ?

• C01B 17/88 - Concentration of sulfuric acid
• C01B 17/90 - Separation; Purification
• C01B 21/44 - Concentration
• C01B 21/46 - Purification; Separation
• F25B 47/00 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
• F28F 19/02 - Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings
• F28G 9/00 - Cleaning by flushing or washing, e.g. with chemical solvents

Abstract

The invention relates to a method for producing a thermoplastic polyurethane from an OH-functional prepolymer and an isocyanate using a reactive extrusion process. Additionally, the invention relates to a device for carrying out the method according to the invention, to a thermoplastic polyurethane which can be obtained or is obtained using the method according to the invention, and to the use of the thermoplastic polyurethane in a shaping method, thereby melting the thermoplastic polyurethane, in particular in order to produce interior components for vehicles.

IPC Classes  ?

• B01J 19/20 - Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
• B29B 7/84 - Venting or degassing
• B29C 48/29 - Feeding the extrusion material to the extruder in liquid form
• B29C 48/76 - Venting means; Degassing means
• B29C 48/92 - Measuring, controlling or regulating
• B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
• 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

Abstract

The invention relates to a method for continuously producing hydroxy-terminated prepolymers 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 total quantity of the component (B) has a hydroxyl value of 600 mg KOH/g to 1830 mg KOH/g determined in accordance with DIN EN ISO 4629-2:2016. The method has the steps of: a) producing a mixture of the component (A) and the component (B); b) mixing the mixture produced in step a) with a prepolymer outlet sub-stream obtained from step e); c) reacting the mixture from step b); d) dividing the reaction mixture obtained in step c) into two outlet sub-streams, and e) removing the remaining outlet sub-stream of step d) containing the hydroxy-terminated prepolymers. The invention additionally relates to hydroxy-terminated prepolymers which are obtained or can be obtained using the method according to the invention, to a composition containing the hydroxy-terminated prepolymers, and to the use thereof.

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
• C08G 18/08 - Processes

Abstract

The invention relates to a multi-step method for continuously producing thermoplastic semi-crystalline 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 enthalpy of reaction over all the method steps is ≤ -500 kJ/kg, with 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
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The present invention relates to a method for producing a thermoplastic polyurethane having improved, lower melt elasticity. The method comprises the method steps: a) producing a mixture of a partial quantity of hexamethylene diisocyanate and the total quantity of butanediol; b) mixing the mixture produced in method step a) with an oligomerisate output partial flow obtained from method step e); bringing the mixture from method step b) to reaction; d) subdividing the reaction mixture obtained in step c) into two output partial flows; e) returning an output partial flow from method step d) as an input partial flow for the mixture in method step b); f) mixing the remaining quantity of hexamethylene diisocyanate with the remaining output partial flow from method step d); and g) allowing the mixture obtained in method step f) to react in order to obtain a thermoplastic polyurethane. The invention also relates to a thermoplastic polyurethane which is obtainable by reacting 1,6-hexamethylene diisocyanate (HDI) with 1,4-butanediol (BDO), wherein the polyurethane has, at a complex module G* of 104 Pa, a phase angle of greater than or equal to 65° and less than or equal to 75°, determined according to ISO 6721-10:2015.

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
• C08G 18/08 - Processes

Abstract

zwwnn ranges from 4 to 10. The invention also relates to a method and a device for producing said prepolymers.

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
• C08G 18/08 - Processes

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 18/10 - 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
• C08G 18/08 - Processes

Abstract

χχ 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 said 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
• C08G 18/08 - Processes

Abstract

The present invention relates to thermoplastic aliphatic polyurethane prepolymers the proportion (formula I) of which is in a range of 2.3 to 6 and which have a degree of crystallinity χ in the range of 10% to 55%, to compositions containing such polyurethane prepolymers, to a process for preparing same and to the use of these polyurethane prepolymers.

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
• C08G 18/08 - Processes

Abstract

The present invention relates to hydroxy-terminated polyurethane prepolymers at least 90 wt.% of which consist of the reaction product of the reaction of 1,6-hexamethylene diisocyanate with 1,4-butandiol and which have an allophanate content of ≤ 1.00 mole %, to a process for preparing same, to compositions containing such polyurethane prepolymers and to the use of these polyurethane prepolymers.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• 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

Abstract

The present invention relates to a method for producing a thermoplastic polyurethane, as well as the thermoplastic polyurethane obtained according to said method and to a device for the production thereof.

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
• C08G 18/08 - Processes

Abstract

The present invention relates to 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.

IPC Classes  ?

• C08G 2/08 - Polymerisation of formaldehyde
• C08G 2/22 - Copolymerisation of aldehydes or ketones with epoxy compounds
• C08G 2/06 - Catalysts

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 63/78 - Preparation processes
• 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

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 63/78 - Preparation processes
• C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof

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, (iii) 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 in this way or 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
• C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton

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  ?

• C08K 5/1515 - Three-membered rings
• C08K 5/42 - Sulfonic acids; Derivatives thereof
• C08K 7/06 - Elements
• C08K 7/14 - Glass

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
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The invention relates to a thermoplastic polyurethane obtainable by reacting at least the following constituent components: one or more aliphatic diisocyanates A) having a molecular weight of between 140 g/mol to 170 g/mol and one or more aliphatic diols B) having a molecular weight of between 62 g/mol to 120 g/mol, the constituent components used to produce the thermoplastic polyurethane consisting of at least 95% by weight of one or more aliphatic diisocyanates A) and one or more aliphatic diols B), based on the total mass of the constituent components used, the one or more aliphatic diisocyanates A) and the one or more aliphatic diols B) being present in a molar ratio in the range from 1.0 0.95 to 0.95 : 1.0, characterized in that the ratio (formula (I)) of the thermoplastic polyurethane polymer is in a range of between 2.3 to 6. The invention also relates to a process for the preparation thereof, to the compositions, mouldings, films and/or fibres containing the thermoplastic polyurethane.

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
• C08G 18/08 - Processes

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  ?

• 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
• B29C 48/355 - Conveyors for extruded articles
• 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 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

Abstract

proactivelyfeed-forwardfeed-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

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  ?

• C08J 5/18 - Manufacture of films or sheets
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08K 5/42 - Sulfonic acids; Derivatives thereof
• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

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 62 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  ?

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

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  ?

• B32B 3/26 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a layer with cavities or internal voids
• 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
• B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• B32B 25/20 - Layered products essentially comprising natural or synthetic rubber comprising silicone rubber
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier

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

Abstract

211221222 is reached after 50 minutes at the earliest.

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

Abstract

The present invention relates to a process for producing polyether carbonate polyols comprising the step of reacting alkylene oxide with carbon dioxide in the presence of an H-functional starter compound and double metal cyanide catalyst, characterized in that (α) a subamount of H-functional starter substance and/or suspension medium containing no H-functional groups is initially charged in a reactor in each case together with DMC catalyst, (β) the mixture from step (α) is admixed with a subamount of alkylene oxide at temperatures of 90°C to 150°C and wherein the addition of the alkylene oxide is then interrupted, (γ) alkylene oxide, carbon dioxide and a mixture containing unactivated double metal cyanide catalyst and an H-functional starter compound, wherein the H-functional starter compound is a polyol having a number-average molar mass according to DIN 55672-1 of 550 to 2000 g/mol, is continuously added to the mixture resulting from (β).

IPC Classes  ?

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

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  ?

• 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
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C09J 175/04 - Polyurethanes

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 5g/10 min to 30g/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  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

The invention relates to: an aqueous formulation containing a) at least one polychloroprene, b) at least one (meth)acrylic acid ester copolymer, c) at least one microfibrillated cellulose as thickener, and d) optionally further additives; a method for producing the aqueous polychloroprene dispersion according to the invention; a method for producing a wet-on-wet adhesion of substrates, in which a dispersion according to the invention is applied to a substrate, and a wet adhesion before film formation takes place after at most 5 minutes; a method for producing a composite material; and the use of the dispersion according to the invention for adhesively bonding wood, thermoplastics, elastomeric plastics, thermoplastic-elastomeric materials, vulcanisates, woven textile fabrics, knitted fabrics, braided fabrics, metals, stoneware, concrete, foams to one another and/or to porous substrates having a density of less than 1 kg/litre.

IPC Classes  ?

• C09J 111/00 - Adhesives based on homopolymers or copolymers of chloroprene
• C08K 7/02 - Fibres or whiskers

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  ?

• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• 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
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08J 5/08 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
• C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
• C08K 7/06 - Elements
• 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

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  ?

• B42D 25/41 - Marking using electromagnetic radiation
• B42D 25/333 - Watermarks
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/328 - Diffraction gratings; Holograms

Abstract

A method for improving an injection molding process, wherein a product (1) is produced by an injection molding apparatus (2) through an injection molding process from a precursor charge (3) of precursor material based on process settings (5) applied to the injection molding apparatus (2), wherein the injection molding process comprises injecting the precursor charge (3) into a mold (4) of the injection molding apparatus (2), wherein the precursor charge (3) is produced through a precursor production process described by precursor production parameters (21), wherein the applied process settings (5) are determined prior to the injection molding process by a computer simulation of the injection molding process executed by a computing apparatus (6), which computer simulation is based on a simulation model (7), on the precursor production parameters (21) and on given process conditions (8) of the injection molding process, which given process conditions (8) comprise a shape of the mold (4). The invention also relates to a corresponding system for improving an injection molding process.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating

Abstract

The invention relates to a sensor system comprising a LiDAR unit having a transmitter for laser light having a wavelength of between 900 nm to 1600 nm and a receiver for light over a wavelength range of between 800 nm to 1600 nm and at least partially below the working wavelength of the LiDAR sensor, and a cover having a substrate layer made from a thermoplastic material which is arranged so that IR light emitted from and received by the LiDAR unit passes through the cover.

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• C08K 5/00 - Use of organic ingredients
• C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
• G02B 5/20 - Filters

Abstract

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

IPC Classes  ?

• 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

Abstract

The present invention relates to a composition, in particular a composition having few VOCs and weak odor, preparation and application of the composition, a two-component system comprising the composition and its application, as well as an article coated or bonded by using the composition or the two-component system. The composition comprises at least one aqueous polyurethane dispersion, at least one adsorbent, and at least one chelating agent; wherein the adsorbent is one or more of the following: a hydrophilic molecular sieve and an amphiphilic molecular sieve; the aqueous polyurethane dispersion is present in an amount of 50 wt% to 99 wt%, the adsorbent in an amount of 0.1 wt% to 3 wt%, and the chelating agent in an amount of 0.05 wt% to 1 wt%, in each case based on the amount of the composition as 100 wt%.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09J 175/04 - Polyurethanes
• C09D 7/40 - Additives
• C08G 18/08 - Processes

Abstract

qmprtt, 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 18/24 - Catalysts containing metal compounds of tin
• 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
• 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 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/78 - Nitrogen
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C09D 5/02 - Emulsion paints
• C09D 175/04 - Polyurethanes
• C09D 175/06 - Polyurethanes from polyesters
• C09D 183/10 - Block or graft copolymers containing polysiloxane sequences

Abstract

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

IPC Classes  ?

• 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

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  ?

• C01B 3/12 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
• C01B 3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
• C01B 7/04 - Preparation of chlorine from hydrogen chloride
• C01B 32/80 - Phosgene
• C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C09D 175/04 - Polyurethanes

Abstract

The present invention relates to a process for preparing polyester carbonates by a melt transesterification process starting from polycarbonates or polycarbonate oligomers. The process especially relates to the preparation of polyester carbonates in a reactive extrusion process. The process is characterized in that the polyester carbonates prepared have a balanced property profile in terms of their molecular weight, glass transition temperature and residual amounts of phenolic OH. The invention further relates to the use of the polyester carbonates prepared according to the invention.

IPC Classes  ?

• C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
• C08G 63/78 - Preparation processes

Abstract

The present invention relates to a layered composite comprising a polycarbonate-based matrix, possibly containing fibres, and an outer layer of special polycarbonate-polyester blends, and also to a layered composite such as that described above and provided with painting on that side of its outer layer which is facing away from the matrix, to a method for producing these composites and also to their use for the production for example of automobile add-on parts.

IPC Classes  ?

• B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

The invention relates to a specific multi-layer composite which is suitable for use as a component in liquid crystal devices and which contains, inter alia, two specific polycarbonate layers. The invention also relates to a method for producing the multi-layer composite. The invention further relates to a liquid crystal device comprising a multi-layer composite according to the invention, a method for the production thereof, and the use thereof as building glazing, vehicle glazing, headlight covers, optical filters, shutters, flat-screen displays, glazed advertising devices, partition walls in trains and in point-of-interest devices.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
• B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
• G02F 1/17 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups

Abstract

The invention relates to a process for the production of a multilayer composite material comprising at least two layers of composite material which lie one on top of the other in a laminar and materially bonded manner, wherein the at least one first layer of composite material comprises continuous fibres, the continuous fibres being unidirectionally aligned within said at least one layer and being embedded in a plastic based on homopolycarbonate and/or copolycarbonate, and the at least one second layer of composite material containing a flat textile structure, the flat textile structure being embedded in a plastic based on homopolycarbonate and/or copolycarbonate, a correspondingly produced multilayer composite material, a multilayer composite material containing at least two layers of composite material which lie one on top of the other in a laminar and materially bonded manner, the at least one first layer of composite material containing continuous fibres, the continuous fibres being unidirectionally aligned within this at least one layer and being embedded in a plastic based on homopolycarbonate and/or copolycarbonate, and the at least one second layer of composite material containing a textile sheet-like structure, the textile sheet-like structure being embedded in a plastic based on homopolycarbonate and/or copolycarbonate, and use thereof.

IPC Classes  ?

• 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
• B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
• B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/28 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
• B32B 7/03 - Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical propert; Layered products characterised by the interconnection of layers with respect to the orientation of features

Abstract

The subject matter of the present invention concerns a method for shaping a semifinished product (1) from a thermoplastic polymeric fibre-composite material in an injection-moulding machine, comprising the following steps: a) heating the semifinished product in a heating device (3) to at least the glass transition temperature Tg or the melting temperature TS of the polymer matrix of the thermoplastic polymeric fibre-composite material and gripping the semifinished product with a gripping device (2) in at least an edge region of the semifinished product (1) and transferring the semifinished product (1) into a shaping mould (4) with at least two, first and second, contour parts (5, 6), which correspond to one another, have moulding surfaces facing one another and are movable along a longitudinal axis in the horizontal direction in relation to one another, wherein the semifinished product (1) is introduced between the contour parts (5, 6) in such a way that, at least in the edge region that is being held, the semifinished product (1) protrudes beyond the edge of the moulding surfaces and forms a projection, b) moving the contour parts (5, 6) together and shaping the semifinished product (1), which, just before contact with the moulding surfaces, is at least at the glass transition temperature Tg or the melting temperature TS of the polymer matrix of the thermoplastic polymeric fibre-composite material, c) releasing and withdrawing the gripping device (2) from the region of the contour parts (5, 6), and d) moving an edge-working device (9), which is held on the outer side of at least the first contour part in such a way that it can be displaced in the closing direction of the shaping mould (4), at least over the previous holding region of the gripping device (2), wherein the projection is crimped and/or cut off, at least in the edge region that is being held, e) introducing moulding material onto, around or behind the shaped semifinished product, wherein steps a) to e) are only carried out in this one shaping mould. The invention also relates to a shaped semifinished product obtainable by the method and to the use thereof and to a device for carrying out the method.

IPC Classes  ?

• 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
• B29C 51/26 - Component parts, details or accessories; Auxiliary operations
• B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
• B29C 51/12 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor of articles having inserts or reinforcements
• B29C 51/30 - Moulds
• B29C 51/32 - Moulds having cutting means
• B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
• B29K 23/00 - Use of polyalkenes as moulding material
• B29K 25/00 - Use of polymers of vinyl-aromatic compounds as moulding material
• B29K 27/06 - PVC, i.e. polyvinylchloride
• B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material 
• B29K 55/02 - ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
• B29K 67/00 - Use of polyesters as moulding material
• B29K 69/00 - Use of polycarbonates as moulding material
• B29K 81/00 - Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
• B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
• B29K 105/10 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns oriented
• B29K 307/04 - Carbon
• B29K 309/08 - Glass

Abstract

The invention relates to a process for the production of a multilayer composite material comprising at least two layers of composite material which lie one on top of the other in a laminar and materially bonded manner, the at least one first layer of composite material comprises continuous fibres, the continuous fibres being unidirectionally aligned within this at least one layer and being embedded in a thermoplastic polyurethane-based plastic, and the at least one second layer of composite material comprises a textile sheet structure, the textile sheet structure being embedded in a thermoplastic polyurethane-based plastic, a correspondingly produced multilayer composite material, a multilayer composite material comprising at least two layers of composite material which lie one on top of the other in a laminar and materially bonded manner, the at least one first layer of composite material comprising continuous fibres, the continuous fibres being unidirectionally aligned within this at least one layer and being embedded in a thermoplastic polyurethane-based plastic, and the at least one second layer of composite material comprising a textile sheet-like structure, the textile sheet-like structure being embedded in a thermoplastic polyurethane-based plastic, and use thereof.

IPC Classes  ?

• 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
• B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
• B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/28 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
• B32B 7/03 - Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical propert; Layered products characterised by the interconnection of layers with respect to the orientation of features

Abstract

The invention relates to a device for mixing reactive components for producing polyurethane foams, comprising a mixing chamber that contains a mixing element, characterized in that two closely intermeshing screw shaft are used as the mixing element. These screw shafts are able to rotate at a speed of at least 1200 rpm, the two rotating shafts intermeshing, rotating at the same speed and having the same measurements as regards their diameter of 10 mm to 80 mm and as regards their length of three to twenty times the respective diameter.

IPC Classes  ?

• B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws

Abstract

The invention relates to 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  ?

• B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
• B29B 7/84 - Venting or degassing
• B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
• B29C 48/52 - Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
• B29B 7/74 - Mixing; Kneading using other mixers or combinations of dissimilar mixers
• B29B 7/88 - Adding charges
• B29B 7/90 - Fillers or reinforcements
• B29B 7/94 - Liquid charges

Abstract

The invention relates to a distributor bar for applying a liquid reaction mixture to a cover layer (10), comprising a distribution channel (250) and multiple exit openings (550, 560), the geometry of the exit openings in the distributor bar being chosen such that the discharged quantity at at least one end of the distributor tube is higher than in the center of the distributor bar. The invention also relates to an application device containing the latter and to a method for producing foam composite elements using this distributor bar.

IPC Classes  ?

• B29C 44/46 - Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length

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  ?

• B29C 44/14 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
• 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 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
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• 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 5/18 - 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
• B60N 2/68 - Seat frames
• B60N 2/70 - Upholstery springs
• B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer

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 1/26 - Chlorine; Compounds thereof
• C25B 1/00 - Electrolytic production of inorganic compounds or non-metals
• C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
• C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms
• C25B 1/23 - Carbon monoxide or syngas
• C25B 3/03 - Acyclic or carbocyclic hydrocarbons
• C25B 3/07 - Oxygen containing compounds
• C25B 3/09 - Nitrogen containing compounds
• C25B 3/01 - Products

Abstract

The invention relates to the specific release of chlorine gas from polychloride-based storage media by means of protic release agents and use of the chlorine in chemical reactions.

IPC Classes  ?

• C01B 7/01 - Chlorine; Hydrogen chloride
• C01B 7/07 - Purification
• C02F 1/467 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection
• B01D 53/14 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
• B01D 53/68 - Halogens or halogen compounds

Abstract

The present invention relates to the use of metal salts of polymeric alcohols as storage-stable thermolatent catalysts for the manufacture of isocyanurate and polyisocyanate polymers.

IPC Classes  ?

• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates

Abstract

The invention relates to a multi-layer body, which can be illuminated by means of edge lighting and optionally also by backlighting and which has a stone appearance. In addition to the stone layer, layers made of thermoplastic material are provided, wherein a translucent, dark layer is provided on the rear side of the stone layer. The structure is not only an attractive design element with a day/night design in building interior and façade design, but can also be used in a variety of ways in the automobile industry.

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 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
• 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 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• E04F 13/14 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of glass
• E04F 15/08 - Flooring or floor layers composed of a number of similar elements of glass

Abstract

The invention relates to a multi-layer element which can be illuminated with edge lighting and optionally also with backlighting, and 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 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
• 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 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• E04F 13/14 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of glass
• E04F 15/08 - Flooring or floor layers composed of a number of similar elements of glass

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 100wt%; the amount of said crosslinking agent having an isocyanate reactive group is 0.2wt%-10wt%, based on the amount of said composition being 100wt%; 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 handfeel.

IPC Classes  ?

• 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
• C08G 18/30 - Low-molecular-weight compounds
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/44 - Polycarbonates
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C09D 175/02 - Polyureas
• C09D 175/04 - Polyurethanes
• C09D 175/08 - Polyurethanes from polyethers
• C09J 175/02 - Polyureas
• C09J 175/04 - Polyurethanes
• C09J 175/08 - Polyurethanes from polyethers
• D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof

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 18/08 - 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
• C08G 18/30 - Low-molecular-weight compounds
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/44 - Polycarbonates
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C09D 175/02 - Polyureas
• C09D 175/04 - Polyurethanes
• C09D 175/08 - Polyurethanes from polyethers
• C09J 175/02 - Polyureas
• C09J 175/04 - Polyurethanes
• C09J 175/08 - Polyurethanes from polyethers

Abstract

The invention relates to a process for the distillative purification of a crude isocyanate that is obtained by the phosgenation of a corresponding amine in a distillation apparatus under vacuum, in order to obtain the corresponding isocyanate, the process being characterised in that: at least one liquid-piston compressor is used to create the vacuum in the distillation apparatus; a specific operating fluid is used for the at least one liquid-piston compressor; the pressure p on the intake side of the at least one liquid-piston compressor is between 10 and 200 mbar(a); the operating temperature of the at least one liquid-piston compressor is between -17 and +15 °C; and the operating fluid at the exit from the at least one liquid-piston compressor has an AC value of less than 35,000 ppm. The invention also relates to a corresponding use of at least one liquid-piston compressor for creating a vacuum in a device for distilling a crude isocyanate, and to a corresponding process for operating a liquid-piston compressor for providing the vacuum for the distillative purification of an isocyanate that is obtained by the phosgenation of a corresponding amine in a distillation apparatus, in order to obtain the corresponding isocyanate.

IPC Classes  ?

• C07C 263/20 - Separation; Purification
• C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
• B01J 3/00 - Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
• F04C 19/00 - Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
• B01D 3/10 - Vacuum distillation

Abstract

The invention relates to a method for modifying an object comprising the step of: I) providing an object which is made at least partially of a construction material comprising a thermoplastic polyurethane. The method also comprises the following steps: II) contacting, at least in part, the construction material, for a first predetermined period of time, with a first liquid comprising ≥ 80% by weight, based on the total weight of the first liquid, of a polar aprotic solvent; III) contacting, for a second predetermined period of time, the areas of the construction material that were in contact with the liquid in step II) with a second liquid comprising ≥ 80% by weight, based on the total weight of the second liquid, of a polar protic solvent. Preferably, the first liquid is DMSO or acetone and the second liquid is water.

IPC Classes  ?

• B29C 71/00 - After-treatment of articles without altering their shape; Apparatus therefor
• B29C 71/02 - Thermal after-treatment
• B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
• B29C 64/35 - Cleaning
• B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
• B33Y 70/00 - Materials specially adapted for additive manufacturing

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  ?

• G09F 13/08 - Signs, boards, or panels, illuminated from behind the insignia using both translucent and non-translucent layers
• B32B 27/00 - Layered products essentially comprising synthetic resin

Abstract

The present application provides a manufacturing method for structural components and a structural component. The manufacturing method includes the following steps: 1) melting down a material comprising polycarbonate or a blend of polycarbonate and acrylonitrile-butadiene-styrene, mixing the molten material with a fiber to obtain a mixture, then extruding the mixture, and cutting the mixture into preformed blocks of a predetermined length; 2) maintaining the preformed blocks at a holding temperature prior to compression molding, and conveying the preformed blocks at the holding temperature; and 3) conveying the preformed blocks into a molding machine, and performing compression molding on the preformed blocks within the molding machine to obtain a structural component; wherein, the temperature of the preformed blocks is in the range of 240-320°C; the holding temperature is in the range of 200-280°C; and the structural component is configured with a projected area larger than or equal to 1 square meter in at least one of the projection directions. The manufacturing method of the present application has the advantages of simple and reliable, convenient to implement, highly efficient and the like; the structural component of the present application has the advantages of low density, high strength, good mechanical performance, high temperature resistance, good fire resistance and the like, which is suitable for an top cover of battery pack for electric vehicle.

IPC Classes  ?

• B29C 43/34 - Feeding the material to the mould or the compression means
• B29C 43/52 - Heating or cooling
• B29C 31/00 - Handling, e.g. feeding of the material to be shaped
• B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
• B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
• B29C 48/91 - Heating, e.g. for cross linking
• B29C 43/58 - Measuring, controlling or regulating
• B29C 33/04 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
• B29K 69/00 - Use of polycarbonates as moulding material
• B29K 55/02 - ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
• B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
• B29K 105/00 - Condition, form or state of moulded material
• B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
• B29L 31/00 - Other particular articles
• B29K 101/12 - Thermoplastic materials
• B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
• B29C 35/16 - Cooling
• 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

Abstract

The present application relates to a thermoplastic composite sheet and a preparation method therefor and an article made therefrom. The thermoplastic composite sheet comprises an upper surface layer (11), a lower surface layer (13), and one or more intermediate layers (12) between the upper surface layer (11) and the lower surface layer (13) laminated together, and has an upper surface formed by the upper surface layer (11), a lower surface formed by the lower surface layer (13), and a first side (14), a second side (15), a third side (16) and a fourth side (17) adjacent in such an order. The thermoplastic composite sheet (1) has at least one first partial reinforcement region (18-21) close to an intersection of adjacent sides and at least one second partial reinforcement region (22-23) close to any side (14-17). The thermoplastic composite sheet of the present invention has partial reinforcement regions, and thus an article made therefrom becomes partially reinforced and has partially improved impact resistance and/or static load capacity, and a good balance among strength, rigidity and light weight without significant increase in the overall structural weight.

IPC Classes  ?

• B32B 3/08 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B29C 70/28 - Shaping operations therefor
• A45C 5/03 - Suitcases
• A45C 13/36 - Reinforcements for edges, corners, or other parts
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin

Abstract

66XX, referred to as a quench66YY66YYY in the range from 0.0 ppm to 9.9 ppm, preferably 0.0 ppm to 5.0 ppm, more preferably 0.0 ppm to 3.0 ppm.

IPC Classes  ?

• C07C 263/20 - Separation; Purification
• C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton

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  ?

• C03C 11/00 - Multi-cellular glass
• C04B 14/24 - Glass porous, e.g. foamed glass
• C08K 7/02 - Fibres or whiskers
• C08K 7/14 - Glass
• C08K 7/20 - Glass
• C08K 7/28 - Glass
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

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  ?

• C07F 9/6581 - Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and nitrogen atoms with or without oxygen or sulfur atoms, as ring hetero atoms

Abstract

The invention relates to formulations of aqueous dispersion adhesives on the basis of aqueous polyurethane or polyurethane-urea dispersions and to the use of the adhesive formulations for bonding foam substrates according to the spray coagulation method.

IPC Classes  ?

• C08K 5/00 - Use of organic ingredients
• C08K 5/12 - Esters; Ether-esters of cyclic polycarboxylic acids

Abstract

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

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/48 - Polyethers
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
• 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
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• 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 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 15/08 - 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
• 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
• B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
• B29K 75/00 - Use of polyureas or polyurethanes as moulding material
• C08G 101/00 - Manufacture of cellular products

Abstract

The present application relates to a flame retardant polycarbonate composition and molded parts as well as articles made therefrom. The polycarbonate composition comprises the following components: an aromatic polycarbonate, a rubber-modified vinyl (co)polymer, an aromatic polyester, a reinforcement material, a phosphorus containing flame retardant; and a chain extender. The molded parts made from the polycarbonate composition according to the present invention have improved adhesion with a polyurethane-based coating system.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

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 0.75 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
• C07C 211/46 - Aniline
• B01J 23/72 - Copper

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 37/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by exchange of hydrocarbon groups which may be substituted, from other compounds, e.g. transalkylation
• C08G 64/04 - Aromatic polycarbonates
• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation

Abstract

The invention relates to 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. The method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade according to the present invention improves production efficiency and saves costs.

IPC Classes  ?

• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• 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 70/86 - Incorporating in coherent impregnated reinforcing layers
• B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying

Abstract

nnX (I) is used as a catalyst, wherein M is selected from the alkali metal cations Li+, Na+, K+and Cs+33 -44 2-44 2-44 3-33 -44 2-44 2-44 3-.

IPC Classes  ?

• C08G 64/30 - General preparatory processes using carbonates
• C08G 18/44 - Polycarbonates
• 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

Abstract

The invention relates to 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 64/30 - General preparatory processes using carbonates
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• 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

Abstract

324344] (3), wherein X = alkali metal, preferably potassium or cesium, and Y = potassium or cesium, is used.

IPC Classes  ?

• C08G 64/30 - General preparatory processes using carbonates
• C08G 18/44 - Polycarbonates
• 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

Abstract

The present invention relates to a process, 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 9/78 - Hydrolases (3.) acting on carbon to nitrogen bonds other than peptide bonds (3.5)
• C12P 13/02 - Amides, e.g. chloramphenicol
• C12P 13/00 - Preparation of nitrogen-containing organic compounds

Abstract

[Problem] Provided is a composition for manufacturing a polyurethane foam from which a polyurethane foam is obtainable having excellent adhesiveness to an adherend, particularly inorganic materials such as metal and olefinic resin materials such as polyethylene and polypropylene. [Solving means] To provide a composition for manufacturing a polyurethane foam, comprising a polyol and a polyisocyanate, wherein the polyol comprises at least two polyol compounds and one of said at least two polyol compounds is polycaprolactone, wherein the composition does not comprise 1-1dichloro-1-fluoroethane.

IPC Classes  ?

• C08G 18/20 - Heterocyclic amines; Salts thereof
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/06 - 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 chemical blowing agent
• 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
• C08K 5/54 - Silicon-containing compounds
• C08G 18/30 - Low-molecular-weight compounds
• C08G 101/00 - Manufacture of cellular products

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 2500mPa s. The polyisocyanate of the present invention has a good storage stability.

IPC Classes  ?

• C07C 263/20 - Separation; Purification
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• 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 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C09J 175/08 - Polyurethanes from polyethers
• C09D 175/08 - Polyurethanes from polyethers
• C08G 18/80 - Masked polyisocyanates

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  ?

• G05B 17/02 - Systems involving the use of models or simulators of said systems electric

Abstract

The invention relates to a new method for producing thermoplastically processable polyurethanes, to thermoplastically processable polyurethanes obtainable by the method, to compositions, articles and uses of said polyurethanes.

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 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/44 - Polycarbonates
• C08G 18/48 - Polyethers
• C08G 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
• C08G 18/66 - Compounds of groups , , or
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/50 - Polyethers having hetero atoms other than oxygen
• 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

Abstract

The present inventions relates to a melt transesterification process for producing a polycarbonate from a dihydroxyaryl compound and a diaryl carbonate. The process according to the invention is characterized in that the rate of the reaction between the dihydroxyaryl compound with the diaryl carbonate is monitored and controlled. Especially the rate of the reaction between the dihydroxyaryl compound with the diaryl carbonate is monitored and – in case that the rate of reaction drops below a predefined value – the rate of reaction is increased again.

IPC Classes  ?

• C08G 64/30 - General preparatory processes using carbonates

Abstract

The invention relates to 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, characterised in that 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 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
• 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