The invention concerns an additive manufacturing process by extrusion for forming a three-dimensional part with an additive manufacturing machine comprising a nozzle, the process comprising:
i) providing a pseudo-amorphous composition having a glass temperature Tg;
ii) softening the composition at a softening temperature above Tg and below 300° C. to form a softened composition which is fluid enough to flow and, extruding the softened composition from the nozzle to form an extruded part section; and,
iii) solidifying the extruded part section;
wherein the composition is based on a homopolymer or a copolymer of poly-ether-ketone-ketone, consisting of: at least an isophthalic (I) repeating unit, having the formula:
The invention concerns an additive manufacturing process by extrusion for forming a three-dimensional part with an additive manufacturing machine comprising a nozzle, the process comprising:
i) providing a pseudo-amorphous composition having a glass temperature Tg;
ii) softening the composition at a softening temperature above Tg and below 300° C. to form a softened composition which is fluid enough to flow and, extruding the softened composition from the nozzle to form an extruded part section; and,
iii) solidifying the extruded part section;
wherein the composition is based on a homopolymer or a copolymer of poly-ether-ketone-ketone, consisting of: at least an isophthalic (I) repeating unit, having the formula:
and, in the case of the copolymer, a terephthalic (T) repeating unit, having the formula:
The invention concerns an additive manufacturing process by extrusion for forming a three-dimensional part with an additive manufacturing machine comprising a nozzle, the process comprising:
i) providing a pseudo-amorphous composition having a glass temperature Tg;
ii) softening the composition at a softening temperature above Tg and below 300° C. to form a softened composition which is fluid enough to flow and, extruding the softened composition from the nozzle to form an extruded part section; and,
iii) solidifying the extruded part section;
wherein the composition is based on a homopolymer or a copolymer of poly-ether-ketone-ketone, consisting of: at least an isophthalic (I) repeating unit, having the formula:
and, in the case of the copolymer, a terephthalic (T) repeating unit, having the formula:
wherein the molar proportion of T units relative to the sum of the T and I units ranges from 0% to 45% or from 55% to 65%.
C09D 161/16 - Condensation polymers of aldehydes or ketones with phenols only of ketones with phenols
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
The invention relates to detergent formulations comprising at least one secondary alcohol alkoxylate, and to the use of said at least one secondary alcohol alkoxylate as a surfactant in a detergent formulation to lower the foaming power thereof.
A method for controlling the temperature of a battery in an electric or hybrid motor vehicle by means of a system including a vapor compression circuit in which a first heat transfer composition flows, and a secondary circuit in which a second heat transfer composition flows, the method involving: —heat exchange between the battery and the second heat transfer composition; —heat exchange between the second heat transfer composition and the first heat transfer composition; wherein the battery includes at least one electrochemical cell having a negative electrode, a positive electrode and an electrolyte including a lithium salt composition, the lithium salt composition including: —at least 99.75% by weight of a lithium salt of bis(fluorosulfonyl)imide; —chlorides Cl—at a mass content strictly less than 20 ppm. Also a system for carrying out the method.
The invention relates to aqueous polymer dispersions comprising polymerized units issued from the following monomers with related weight proportions based on 100 parts of weight of a)+b): a) 50 to 90% of a monoethylenically unsaturated non-ionic monomer, b) 10 to 50% of vinyl aromatic monomer or methyl methacrylate, c) 1 to 5% of a hydroxy-containing (meth)acrylate, d) 0.1 to 3% of acid monomer selected from d1) acid monomer selected from monocarboxylic or dicarboxylic acid monomers and d2) acid monomer selected from phosphorous-based or sulfur-based strong acid monomers or/and their salts, or from the mixtures of d1) and d2), e) 0.001 to 0.5% of chain transfer agent, and f) 0 to 1% one of internal crosslinker bearing at least two copolymerisable ethylenic unsaturations, the polymer having a Tg measured by DSC from −30 to 0° C. and a gel content of 0 to 60%, formed during polymerization.
C08F 230/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium, or a metal containing phosphorus
C08F 236/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
C08K 3/013 - Fillers, pigments or reinforcing additives
The invention relates to a method for coating a surface, comprising the following steps: applying a layer of a curable composition to said surface; irradiating the curable composition with a first radiation having a wavelength of from 100 to 280 nm, so as to obtain a partially cured composition; and irradiating the partially cured composition with a second radiation comprising at least one wavelength greater than the wavelength of the first radiation and/or an electron beam, so as to obtain a cured composition; wherein the curable composition comprises at least one actinic-radiation-curable compound and particles of at least one polyamide. The invention also relates to a coating layer obtained by such a method and to an object comprising a surface covered with such a coating layer.
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
B05D 5/02 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
6.
IMPROVED PROCESS FOR MANUFACTURING HIGH-PURITY ALKYL ACRYLATES
The invention relates to the manufacture of alkyl acrylates by direct esterification of acrylic acid with the corresponding alcohol. In particular, the invention relates to the use of a cracker in combination with a topping column equipped with a side draw-off allowing a stream rich in acidic impurities such as β-hydroxypropionic acid and β-acryloxypropionic acid to be drawn off during distillation of the crude reaction mixture, so as to produce an acrylic ester meeting purity standards compatible with its use for preparing acrylic polymers.
C07C 67/08 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
C07C 67/54 - Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
The invention relates to a method for producing a polyamide powder having a single-mode melting endotherm and a single melting point (Tf1max), the method comprising the steps of: i) bringing a polyamide into contact with a solvent in order to obtain a mixture; ii) heating the mixture in order to solubilize the polyamide in the solvent; iii) cooling the mixture to the temperature (Tp) of precipitation of the polyamide from the solvent, thereby obtaining a powder characterized by a non-single-mode melting endotherm and more than one melting point, (Tf1max) being the highest melting point; iv) keeping the temperature of the mixture at a temperature that is at most equal to Tp, in particular within the range from Tp - 0.1°C to Tp - 15°C, until the precipitated polyamide powder is characterized by a single-mode melting endotherm and one melting point (Tf1max); and v) recovering the obtained polyamide powder.
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
C08J 3/14 - Powdering or granulating by precipitation from solutions
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
C08G 69/08 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from amino carboxylic acids
C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
The invention relates to an ionic liquid comprising an anion of formula (I) and at least one onium cation, said ionic liquid having a colour of less than 115 Hazen units on the APHA scale. The invention also relates to a method for purifying an ionic liquid comprising an anion of formula (I) and at least one onium cation.
The present invention relates to a two-component polyurethane composition for polycarbonate bonding, a method of bonding to a polycarbonate substrate with the composition, and a method of preparing the composition. The two-component polyurethane composition comprises at least one polycarbonate polyol, (ii) an amine free catalyst, and (iii) optionally, at least one aliphatic monomeric isocyanate compound; and at least one isocyanate component. The polyurethane composition is free of an aromatic isocyanate compound. Also disclosed is the use of the composition in adhesive, coating, primer, paint and varnish based compositions.
A curable urethane (meth)acrylate oligomer is formed by reacting, in the presence of a catalyst, at least the following: (A) a first isocyanate reactive component bearing at least one (meth)acrylate group and at least one isocyanate reactive groups; (B) a polyisocyanate component; and (C) a second isocyanate reactive component bearing at least one acidic group and two isocyanate reactive groups, wherein the urethane (meth)acrylate oligomer has an acid content of at least 5x10-4 mol acid/g oligomer, with some of the acid groups optionally neutralized. A cured ink or coating made from the oligomer, along with at least one of a (meth)acrylate monomer or a (meth)acrylate oligomer and, optionally, at least one additive, can be easily removed from the substrate by treatment with aqueous base, thus allowing for recycling the substrate cleaned of any ink or coating. Nail gel compositions including the oligomer can also be more easily removed from nails.
A61K 8/81 - Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
The invention relates to a method (100) for producing a spar cap for a rotor blade of a wind turbine, said method comprising the steps of: - Providing (110) a plurality of pultruded planks, said pultruded planks being a thermoplastic composite comprising 45 % or less in volume of a polymeric matrix including (meth)acrylic polymers, and at least 55 % in volume of fibers, preferably carbon fibers; - Stacking (130) the pultruded planks into a pre-spar cap shape; and - Joining (140) the staked pultruded planks in order to produce the spar cap. - The invention also relates to a spar car, a rotor blade a method for producing a rotor blade and a wind turbine.
The present invention relates to a method for granulating an azo compound, comprising the following steps: a) a step of granulating by agitating an aqueous suspension of said azo compound, in the presence of an organic binder; b) an optional step of recovering the granules obtained in step a), preferably by filtration; and c) an optional step of drying the granules recovered in step b). The invention also relates to the granules obtainable using said method, and to the uses thereof.
C07C 253/32 - Separation; Purification; Stabilisation; Use of additives
C07C 255/65 - Carboxylic acid nitriles containing cyano groups and nitrogen atoms further bound to other hetero atoms, other than oxygen atoms of nitro or nitroso groups, bound to the same carbon skeleton with the nitrogen atoms further bound to nitrogen atoms
C07C 281/20 - Derivatives of carbonic acid containing functional groups covered by groups in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group the two nitrogen atoms of the functional groups being doubly-bound to each other, e.g. azoformamide
The invention relates to a method for recycling a used polyamide composition to form a recycled polyamide powder that has a unimodal melting endotherm and a single melting point (Tf1max), the method comprising the steps of: i.e. bringing a used polyamide composition into contact with a solvent in order to obtain a mixture; ii. heating the mixture to solubilise the polyamide in the solvent; iii. cooling the mixture to the precipitation temperature (Tp) of the polyamide in the solvent, whereby a precipitated polyamide powder characterised by a non-unimodal melting endotherm and more than one melting point is obtained, (Tf1max) being the highest melting point; and maintaining the temperature of the mixture at a temperature at most equal to Tp, in particular within the range from Tp -0.1°C to Tp -15°C, until the precipitated polyamide powder is characterised by a unimodal melting endotherm and one melting point (Tf1max); and recovering the obtained recycled polyamide powder.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
UNIVERSITE DE BORDEAUX (France)
INSTITUT POLYTECHNIQUE DE BORDEAUX (France)
UNIVERSITE GRENOBLE ALPES (France)
Inventor
Chevalier, Xavier
Sérégé, Matthieu
Gomes Correia, Cindy
Zelsmann, Marc
Fleury, Guillaume
Abstract
The invention relates to a method of directional self-assembly lithography, said method comprising a step of depositing a block copolymer film on a layer (20) neutral with respect the block copolymer, said block copolymer film being for use as a lithography mask, said method being characterized in that it comprises the following steps of:
depositing said neutral layer (20) on a surface of a substrate (10), said neutral layer (20) being of the carbon or fluoro-carbon type deposited to a thickness greater than 1.5 times the thickness of the block copolymer film (40),
crosslinking said neutral layer,
depositing said block copolymer film, comprising at least one silylated block, on said crosslinked neutral layer (30),
subjecting the stack to an assembly temperature in order to nanostructure said block copolymer,
removing (G1) at least one of the nano-domains (41, 42) from the nanostructured block copolymer film (40), in order to create a pattern intended to be transferred by etching (G2, G3, G4) into the thickness of the substrate (10).
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
The invention relates to detergent formulations comprising at least one secondary alcohol alkoxylate, and to the use of said at least one secondary alcohol alkoxylate as a surfactant having an improved hydrotropic power.
The present invention relates to an organic resin, in particular acrylic, vinyl or acrylic-vinyl, of low molecular weight and functionalized with carboxyl and carbonyl groups, and also to an aqueous dispersion comprising said organic resin and a crosslinking agent, for the preparation of a one-component crosslinkable coating composition with a high level of performance.
A composite article including at least one electronic system, integrated onto the surface or in the volume of a thermoplastic matrix. The electronic system includes at least one piezoelectric transducer and means for transmitting an electrical signal. The piezoelectric transducer includes a piezoelectric polymer essentially consisting of, or consisting of, repeating units derived from vinylidene fluoride (VDF) and vinylidene trifluoride (TrFE), the molar proportion of the unit derived from TrFE being from 15% to 50% relative to the total number of moles of the units derived from VDF and TrFE. Also, the use of the electronic system and to the use of the article.
C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
H10N 30/00 - Piezoelectric or electrostrictive devices
The present invention relates to the production of (meth)acrylic acid by means of a method based on the use of two distillation columns (a dehydration column and a finishing column) in the absence of an external organic solvent. The invention relates more particularly to the implementation of thermal cracking preceded by evaporation, hydrolysis of the bottom of the finishing column followed by recycling of the gaseous phase of the cracker at the bottom of the dehydration column, and utilization of the cracking residue by way of hydrothermal gasification. The method according to the invention makes it possible to improve the energy balance of the process while at the same time improving its material balance.
C01B 3/32 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
19.
MOULDING COMPOSITIONS BASED ON POLYAMIDE, GLASS FIBRES AND HOLLOW GLASS REINFORCEMENT AND USE THEREOF
The present invention relates to a molding composition, comprising by weight:
(A) 38 to 87% of at least one semi-crystalline aliphatic polyamide,
(B) 3 to 25% of a hollow glass reinforcement,
(C) 5% to 30% glass fibers,
(D) 5 to 15% of at least one impact modifier chosen from a polyolefin, a polyether block amide (PEBA-1) and a mixture thereof, the polyolefin and the PEBA-1 having a flexural modulus less than 200 MPa, in particular less than 100 MPa, as measured according to standard ISO 178:2010, at 23° C.,
(E) 0 to 2% by weight of at least one additive,
the sum of the proportions of each constituent of said composition being equal to 100%,
the density of the composition being less than 1.12 g/cm3.
The invention is targeted mainly at a polymer powder suitable for 3D printing by sintering, comprising:
(a) a polymer composition comprising at least one thermoplastic elastomer;
(b) a pigment composition comprising at least one pigment exhibiting an absorbance of the light with a wavelength of 1000 nm, as measured according to the standard ASTM E1790, of less than 50%; and also, if appropriate,
(c) one or more fillers or reinforcements; and
(d) one or more additional additives.
The invention is targeted mainly at a polymer powder suitable for 3D printing by sintering, comprising:
(a) a polymer composition comprising at least one thermoplastic elastomer;
(b) a pigment composition comprising at least one pigment exhibiting an absorbance of the light with a wavelength of 1000 nm, as measured according to the standard ASTM E1790, of less than 50%; and also, if appropriate,
(c) one or more fillers or reinforcements; and
(d) one or more additional additives.
The invention is also targeted at a process for the preparation of said powder and also at the use of said powder for 3D printing by sintering. Finally, it is targeted at the use of a pigment exhibiting an absorbance of the light with a wavelength of 1000 nm, as measured according to the standard ASTM E1790, of less than 50% to improve the definition and/or the mechanical properties of the articles printed by a process of 3D printing by sintering of a thermoplastic elastomer powder.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
B29C 33/42 - 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 characterised by the shape of the moulding surface, e.g. ribs or grooves
B29C 33/62 - Releasing, lubricating or separating agents based on polymers or oligomers
C08F 120/26 - Esters containing oxygen in addition to the carboxy oxygen
C08F 130/02 - Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium, or a metal containing phosphorus
C08F 220/28 - Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
C08F 230/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium, or a metal containing phosphorus
22.
POLYAMIDE COMPOSITION PREPARED FROM A POWDER OF POLYAMIDES TO BE RECYCLED
The application relates to a method for preparing a polyamide composition, which comprises the steps of: a) providing a mixture comprising a virgin polyamide vPA and a polyamide to be recycled rPA in the form of an untransformed powder resulting from additive manufacturing by sintering or from a coating method by powdering or by electrostatic spraying, or powder obtained by grinding a polyamide-based part of an object to be recycled; b) kneading the mixture in the molten state, as a result of which a polyamide composition is obtained; and c) recovering the polyamide composition. The invention also relates to the polyamide composition obtained and to the uses thereof for preparing articles by extrusion, injection or overmoulding.
C08J 11/06 - Recovery or working-up of waste materials of polymers without chemical reactions
C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
B05B 14/10 - Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
C08G 69/08 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from amino carboxylic acids
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
The invention relates to a top-of-line corrosion inhibitor composition comprising: at least one amine having a Henry's solubility constant that is strictly less than 20 mol.m-3.Pa-1, preferably less than 10 mol.m-3.Pa-1and more particularly less than or equal to 5 mol.m-3.Pa-1, even more preferably less than or equal to 1 mol.m-3.Pa-1, at least one compound having both a Henry's solubility constant that is strictly greater than 20 mol.m-3.Pa-1, preferably greater than or equal to 30 mol.m-3.Pa-1, and more particularly greater than or equal to 50 mol.m-3.Pa-1, even more preferably greater than or equal to 100 mol.m-3.Pa-1, preferentially greater than or equal to 500 mol.m-3.Pa-1, even more advantageously greater than or equal to 1000 mol.m-3.Pa-1, and a pKa strictly greater than 7, preferably greater than or equal to 7.5, and more particularly greater than 8, and at least one sulfur-containing compound, and the composition having a flash point greater than or equal to 60°C, preferably strictly greater than 60°C, and even more preferably greater than or equal to 70°C.
The present invention relates to a composition comprising at least one organic peroxide selected from the group consisting of dialkyl peroxides, peroxyketals or a mixture thereof and at least one unsaturated organic peroxide. The invention also relates to the use of such a composition for preventing the scorching of at least one crosslinkable composition. The present invention also relates to a method for crosslinking at least one crosslinkable composition comprising at least one crosslinkable polymer. The invention further relates to an article, in particular a moulded article or an extruded article, which can be obtained from the crosslinking method.
A water-based humidity resistant adhesive compositions comprising (i) about 30 wt % to about 80 wt % of an acrylic copolymer emulsion and (ii) about 2 wt % to about 40 wt % of an adhesion promoter of a water-based chlorinated or maleic anhydride modified polyolefin. The adhesive effectively bonds a sheet membrane to a substrate of steel, wood, concrete, a roof board, insulation, or a fiberglass mat. Also disclosed is a method of bonding the sheet membrane, such as TPO, to a substrate with the adhesive composition, and a method of preparing the adhesive composition.
Sheets having thicknesses of from 1000 to 10,000 microns which are useful for the production of thermoformed semi-crystalline articles are based on polyaryletherketones having viscosities at 360° C. of at least about 400 Pas at 100 s−1 as measured by parallel plate rheometer. The polyaryletherketones are in a pseudo-amorphous state in the thermoformable sheets.
The present invention relates to a method for preparing a functionalized halogenated polymer, comprising the steps of: a) providing a halogenated polymer A1 comprising monomer units M1 comprising at least one halogen atom, preferably fluorine atom, and monomer units M2 comprising at least one carbon-carbon double bond –C(R1)=C(R2)-; b) bringing said halogenated polymer A1 into contact with a thiolate compound B of formula R-S- in the presence of a peroxide compound C to form a polymer A2 comprising monomer units M3 of formula –CH(R1)-C(R2)(SR)- and said monomer units M1 comprising at least one halogen atom, preferably fluorine atom; R1and R215155 haloalkyl, F, Br, I and Cl; R being an optionally functionalized hydrocarbon substituent.
The present invention relates to an electrical apparatus (1) comprising a winding (7), at least one composition comprising at least one dielectric fluid, preferably a dielectric liquid, and at least one material in gelled form (12), arranged inside the cavity (5) of a housing (3), and wherein the ratio between the maximum volume occupied by the material in gelled form (12) and the total volume of the cavity (5) is less than 50%. The invention also relates to the use of a material (12) in gelled form for preventing and/or minimising leaks of a composition (9) comprising at least one dielectric fluid within an electrical apparatus (1), in particular a transformer or a capacitor.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/20 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
H01F 27/32 - Insulating of coils, windings, or parts thereof
A polyamide powder for use in a process of powder agglomeration by sintering, including at least one chain limiting agent. A process for preparing a powder including at least one chain limiting agent, wherein the chain limiter is mixed with the polyamide powder, and if need be at least one thioether antioxidant, by dry blending.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
C08G 69/08 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from amino carboxylic acids
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
30.
METHOD FOR PREPARING AN AMINOSUCCINIC RESIN WITH A LOW AMINE VALUE
The present invention relates to a method for preparing an aminosuccinic resin, and to the aminosuccinic resin obtainable by this method, which has an amine value of less than 190 mg KOH/g. The invention also relates to the use of said aminosuccinic resin for producing two-component binders containing at least one polyisocyanate.
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
C09D 179/00 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups
A method for preparing composite parts, including a step of depositing at least one band of fibrous material impregnated with a thermoplastic polymer on a substrate, by means of a main heating system selected from the following two systems: a preheating system (1) and a heating system (2), in combination with at least one secondary heating system selected from: a heating system (3), a post-heating system (4), a heating system (5), and a preheating system (6), or by means of the two main heating systems (1) and (2), the substrate being previously devoid of any deposited band or comprising at least one band n−1 of said fibrous material, the thermoplastic polymer being amorphous, with a Tg such that Tg≥80° C., or semicrystalline, with a Tm≥150° C.
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
B29C 70/32 - 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 on a rotating mould, former or core
B29C 70/54 - Component parts, details or accessories; Auxiliary operations
32.
METHOD AND INSTALLATION FOR THE PRODUCTION OF A MONOMER BY DEPOLYMERIZATION OF THE CORRESPONDING POLYMER
The production method comprises the steps of: • - pyrolyzing the feed material in a pyrolysis reactor (4) so as to generate a gas stream, the feed material travelling from an inlet of the pyrolysis reactor (4) to an outlet of the pyrolysis reactor (4) with being subjected to heat such as to generate the gas stream at the outlet of the pyrolysis reactor (4); and • - condensing the monomer contained in the gas stream in a condenser (6) such as to obtain liquid monomer; the production method further comprising feeding the pyrolysis reactor (4) with solid and/or liquid impurities separated from the gas stream generated in the depolymerization installation (2) and/or a gas stream generated in another depolymerization installation and/or with a syrup containing the polymer and/or the monomer and/or oligomers of the monomer.
C07C 67/333 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by change of size of the carbon skeleton
C07C 67/54 - Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
The invention relates to a powder based on at least one polyether ketone ketone homopolymer or copolymer essentially consisting of, or consisting of, an isophthalic repeating unit and, in the case of the copolymer, a terephthalic repeating unit (T), the isophthalic repeating unit representing at least 85% by weight relative to the total weight of said at least one polyether ketone ketone.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B33Y 70/00 - Materials specially adapted for additive manufacturing
A composition including: (A) a copolymer having rigid blocks and flexible blocks (TPE), (B) a non-crosslinked polysiloxane silicone, preferably a non-crosslinked polyorganosiloxane, (C) a compatibilizer, improving the compatibility between the TPE and the silicone, the compatibilizer (C) being chosen from a polyolefin or a mixture of polyolefins, and optionally (D) an additive.
C08L 87/00 - Compositions of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
C08J 3/20 - Compounding polymers with additives, e.g. colouring
35.
PROCESS FOR MANUFACTURING AMINOUNDECANOIC ACID AND AMINODECANOIC ACID
Process for producing aminocarboxylic acid of formula (I): NH3—CH2—(CH2)n—COOH (I) including: (i) reacting the unsaturated carboxylic acid of formula (II): CH═CH—(CH2)n-1—COOH (II) with hydrogen bromide to form the ω-bromoalkanoic acid of formula (iii): Br—CH2—(CH2)n—COOH (III); (ii) reacting the w-bromoalkanoic acid obtained with ammonia in aqueous solution to form a reaction mixture; (iii) separating the reaction mixture of the aminocarboxylic acid of formula (I) and an aqueous solution rich in ammonium bromide; (iv) bringing the aqueous solution rich in ammonium bromide into contact with sodium hydroxide to form ammonia and an aqueous solution rich in sodium bromide; (v) purifying the aqueous solution rich in sodium bromide; (vi) bringing the purified aqueous solution rich in sodium bromide into contact with chlorine to form bromine and an aqueous solution rich in sodium chloride; (vii) reacting the bromine with hydrogen to form hydrogen bromide; and (viii) recycling the hydrogen bromide to step (i).
C07C 227/08 - Formation of amino groups in compounds containing carboxyl groups by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid by reaction of ammonia or amines with acids containing functional groups
The present invention relates to copolymer obtained by polymerizing a monomer mixture comprising: (a) at least one monomer selected from the group consisting of 2-octyl (meth)acrylate, 2-methylbutyl acrylate and 3-methylbutyl acrylate; (b) isobornyl (meth)acrylate; (c) optionally at least one carboxyl-functional ethylenically unsaturated monomer; and (d) optionally at least one ethylenically unsaturated monomer other than (a), (b) and (c). A composition comprising the copolymer and its uses in adhesives and coatings are also provided.
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
C09J 4/06 - Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
37.
VINYLIDENE FLUORIDE EMULSION POLYMERIZATION USING POLY(VINYL ALCOHOL) AS ONLY STABILIZER
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
UNIVERSITE CLAUDE BERNARD LYON 1 (France)
ECOLE SUPERIEURE DE CHIMIE, PHYSIQUE, ELECTRONIQUE DE LYON - CPE LYON (France)
Inventor
Eid, Nadim
Devisme, Samuel
Bonnet, Anthony
Fevrier, Thibaut
Lansalot, Muriel
D'Agosto, Franck
Abstract
The present invention relates to a process for producing a stable PVDF latex by emulsion polymerization in the absence of fluorinated surfactant, said latex being stabilized by poly(vinyl alcohol) (PVOH).
C08F 261/06 - Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group on to polymers of unsaturated ethers
C08L 27/16 - Homopolymers or copolymers of vinylidene fluoride
C09D 127/16 - Homopolymers or copolymers of vinylidene fluoride
C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
C08F 2/20 - Suspension polymerisation with the aid of macromolecular dispersing agents
38.
IMPROVED METHOD FOR PRODUCING ALPHA-BETA-UNSATURATED CARBOXYLIC ACIDS FROM POLY(3-HYDROXYALKANOATE)
The present invention relates to a method for producing α-β-unsaturated carboxylic acids by thermolysis of poly(3-hydroxyalkanoate), while limiting clogging associated with the unintentional condensation of hot α-β-unsaturated carboxylic acid vapours generated on walls in the method and with the subsequent formation of solids via a radical polymerisation reaction. The invention is based on the introduction of a radical polymerisation inhibitor into the thermolysis reactor and on the use of specific thermolysis conditions that make this inhibitor partially volatile during the thermolysis of the poly(3-hydroxyalkanoate).
The present invention relates to a method for producing biobased α-β-unsaturated carboxylic acids from poly(3-hydroxyalkanoate) (P3HA) contained in biomass by extraction of the P3HA using a solvent, followed by separation of insoluble organic waste and then thermolysis of the P3HA-solvent mixture in the presence of the solvent. The solvent is selected such that it provides good dissolution of the P3HA and does not boil under the thermolysis conditions.
The present invention relates to a binder composition for positive electrodes comprising a polymer P1 comprising recurring units derived from vinylidene fluoride and a hydrophilic polymer P2 comprising recurring units derived from at least one monomer of formula R1R2C=C(R3)C(O)R (I) wherein R1, R2and R315322311818 alkyl groups optionally substituted by one or more hydroxyl, thiol or amino functional group(s) or a five- to six-membered heterocycle comprising at least one nitrogen atom in the ring; characterized in that the weight average molecular weight of said hydrophilic polymer P2 is greater than 30000 g/mol, advantageously greater than 50000 g/mol, preferably greater than 65000 g/mol, more preferably greater than 80000 g/mol.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1397 - Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
41.
COMPOSITION BASED ON AT LEAST ONE FLUOROPOLYMER AND AT LEAST ONE HYDROPHILIC POLYMER FOR A SEPARATOR COATING OR CATHODE BINDER
The present invention relates to a composition comprising a polymer P1 comprising monomer units derived from vinylidene fluoride and a polymer P2 comprising monomer units derived from a monomer M2 of formula R1R2C=C(R3)C(O)R where the substituents R1, R2and R3322311818 alkyl optionally substituted by one or more –OH group(s) or a five-or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, characterised in that at least 5% of polymer P2 is thoroughly mixed with polymer P1.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
42.
POWDER COMPOSITION BASED ON AT LEAST ONE FLUOROPOLYMER AND AT LEAST ONE HYDROPHILIC POLYMER FOR SEPARATOR COATING
The present invention relates to a composition comprising a polymer P1 comprising monomer units derived from vinylidene fluoride and a polymer P2 comprising monomer units derived from a monomer M2 of formula R1R2C=C(R3)C(O)R in which the substituents R1, R2and R31522311818 alkyl optionally substituted by one or more –OH group(s) or a five-or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, characterised in that the difference between the melting temperature and the crystallisation temperature of the composition is greater than or equal to 40°C and in that the composition is in powder form.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
43.
POWDER COMPOSITION BASED ON AT LEAST ONE FLUOROPOLYMER AND AT LEAST ONE HYDROPHILIC POLYMER FOR A SEPARATOR COATING
The present invention relates to a composition comprising a polymer P1 comprising monomer units derived from vinylidene fluoride and optionally a comonomer M1 compatible with vinylidene fluoride and a polymer P2 comprising monomer units derived from a monomer M2 of formula R1R2C=C(R3)C(O)R, in which the substituents R1, R2and R315322311818 alkyl optionally substituted by one or more –OH groups or a five- or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, characterised in that the crystallisation temperature of the composition is Tc < -3.7496x + 130, where x is the content, by weight, of the comonomer M1 relative to the total weight of the polymer P1, and in that the composition is in powder form.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
44.
POWDER COMPOSITION BASED ON AT LEAST ONE FLUOROPOLYMER AND AT LEAST ONE HYDROPHILIC POLYMER FOR A SEPARATOR COATING OR CATHODE BINDER
The present invention relates to a composition comprising a polymer P1 comprising monomer units derived from vinylidene fluoride and a polymer P2 comprising monomer units derived from a monomer of formula R1R2C=C(R3)C(O)R where the substituents R1, R2and R315322311818 alkyl optionally substituted by one or more –OH group(s) or a five-or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, characterised in that at least 5% of polymer P2 is thoroughly mixed with polymer P1, and in that the composition is in powder form.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
45.
COMPOSITION BASED ON AT LEAST ONE FLUOROPOLYMER AND AT LEAST ONE HYDROPHILIC POLYMER FOR SEPARATOR COATING
The present invention relates to a composition comprising a polymer P1 comprising monomer units derived from vinylidene fluoride and a polymer P2 comprising monomer units derived from a monomer M2 of formula R1R2C=C(R3)C(O)R wherein the substituents R1, R2and R315322311818 alkyl optionally substituted by one or more –OH group(s) or a five-or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, characterised in that the difference between the melting temperature and the crystallisation temperature of the composition is greater than or equal to 40°C.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
46.
COMPOSITION BASED ON AT LEAST ONE FLUOROPOLYMER AND AT LEAST ONE HYDROPHILIC POLYMER FOR A SEPARATOR COATING
The present invention relates to a composition comprising a polymer P1 comprising monomer units derived from vinylidene fluoride and optionally a comonomer M1 compatible with vinylidene fluoride and a polymer P2 comprising monomer units derived from a monomer M2 of formula R1R2C=C(R3)C(O)R, in which the substituents R1, R2and R31511818 alkyl optionally substituted by one or more –OH groups or a five- or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, characterised in that the crystallisation temperature of the composition is Tc < -3.7496x + 130, where x is the content, by weight, of the comonomer M1 relative to the total weight of the polymer P1.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
47.
LIQUID COMPOSITION FOR APPLICATIONS OF SMC-MOULDED THERMOPLASTIC COMPOSITES
The present disclosure relates to liquid compositions including a (meth)acrylic polymer, a (meth)acrylic monomer, and a maturation agent selected from a metal oxide or a metal hydroxide. The (meth)acrylic polymer can contain a monomer carrying a carboxylic acid function and/or the (meth)acrylic monomer can carrying a carboxylic acid function. The liquid compositions can also contain a dynamic viscosity between 10 mPa·s and 10 000 mPa·s at 25° C.
The invention concerns a composite article, such as a mold part or an extrusion die, made of a composition comprising at least one polyarylether ketone and at least one thermally conductive filler, wherein the composite article has a thermal conductivity of at least 0.5 W/mK. The invention also concerns a composition and uses thereof.
A method of forming an article of manufacture comprises: a) forming a precursor to the article of manufacture using a first material comprising an actinic radiation curable composition comprising at least one cyanoacrylate and optionally at least one filler; b) actinically curing the precursor to form a cured precursor article comprising a cured actinic radiation curable composition; c) optionally forming an intermediate article of manufacture from a second material while using the cured precursor article as at least one of a support, a positive mold, or a negative mold for the second material; and d) heating the cured precursor article to a temperature sufficient to decompose the cured actinic radiation curable composition to form or isolate the article of manufacture. The method is suitable for the use of additive manufacturing in developing dental materials, jewelry, or high strength industrial products.
C04B 35/01 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides
C04B 35/057 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on calcium oxide
C04B 35/14 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C04B 35/46 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates
C04B 35/52 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
C04B 35/528 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
C04B 35/56 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
C04B 35/565 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide
C04B 35/583 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on boron nitride
B29C 33/38 - 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 characterised by the material or the manufacturing process
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29K 105/06 - Condition, form or state of moulded material containing reinforcements, fillers or inserts
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
50.
COMPOSITE THERMOPLASTIC MATERIAL FOR COMPOSITE TUBULAR STRUCTURES
The invention relates to a composition comprising at least one fluoropolymer and at least one high-density filler. The invention also relates to a thermoplastic composite tubular structure which comprises at least one external layer consisting of said composition. The invention also relates to the process for the manufacture of said composition, and also to its applications as external layer for weighing down thermoplastic composite pipes transporting fluids in the context of oil and gas exploration and exploitation.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
The invention relates to a composition comprising a mixture of C3-C22 alcohol alkoxylates which have a narrow weight distribution and are capped in the terminal portion by a group chosen from linear or branched alkyls comprising between 1 and 6 carbon atoms, the phenyl group, benzyl group and hydrocarbon groups having a carboxy function —COO—, and groups having a sugar unit. The invention also relates to the method for preparing said composition and to the uses thereof as a surfactant, in particular as a surfactant with low foaming power.
Pressure sensitive adhesives having high shear failure temperatures are made by reacting a curable pressure sensitive adhesive composition comprising: a. a pre-polymer having a structure according to Formula (I) R1—[Polymer]—R2. wherein the [Polymer] is a linear or branched polymer backbone derived from the reaction of farnesene and at least one other monomer: and R1 is a (C1-C12) alkyl group or R2. and R2 comprises a (meth)acrylate group having a structure according to Formula (II), wherein Z is selected from the group consisting of hydrogen and methyl: b. at least one functional (meth)acry late monomer: and c. at least one photo-initiator.
Pressure sensitive adhesives having high shear failure temperatures are made by reacting a curable pressure sensitive adhesive composition comprising: a. a pre-polymer having a structure according to Formula (I) R1—[Polymer]—R2. wherein the [Polymer] is a linear or branched polymer backbone derived from the reaction of farnesene and at least one other monomer: and R1 is a (C1-C12) alkyl group or R2. and R2 comprises a (meth)acrylate group having a structure according to Formula (II), wherein Z is selected from the group consisting of hydrogen and methyl: b. at least one functional (meth)acry late monomer: and c. at least one photo-initiator.
C09J 151/08 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
53.
A TWO-COMPONENT POLYURETHANE COMPOSITION, PROCESS FOR PREPARING THE SAME AND A METHOD OF USE THEREOF
This present disclosure relates to a two-component polyurethane composition comprising: (A) a prepolymer component comprising: (i) at least one isocyanate terminated intermediate compound prepared from a reaction mixture comprising at least one isocyanate compound and at least one active hydrogen containing compound selected from the group consisting of a polyol compound, a polyamine compound and a combination thereof, (ii) at least one isocyanate compound, and (iii) optionally at least one liquid rubber; and (B) a curative component comprising: (i) at least one polyol terminated intermediate compound prepared from a reaction mixture comprising at least one isocyanate compound and at least one active hydrogen containing compound selected from the group consisting of a polyol compound, a polyamine compound and a combination thereof, (ii) at least one liquid rubber, (iii) at least one catalyst, (iv) at least one polyol, (v) optionally at least one amine compound, and (vi) optionally a chain extender.
The invention relates to a method for the production of a monomer from a feed material containing a polymer of which the monomer is a constituent, the production method comprising the steps of: - depolymerizing the feed material to obtain a monomer solution containing the monomer and impurities; and - purifying the monomer solution thereby obtaining a purified monomer solution having a content of impurities lower than the content of impurities of the monomer solution, wherein the purification step comprises at least one crystallization step each crystallization step comprising the steps of: a) cooling of the monomer solution such that the monomer solution forms monomer crystals and a mother liquor, b) separating the monomer crystals from the mother liquor, and c) melting the monomer crystals thereby obtaining an enriched monomer solution.
Disclosed are high refractive index monomers for ceramic/metal 3D printing applications. The compositions disclosed herein have a higher refractive index and thus better resolution and lower scattering of the light when employed in a composition to deposit ceramic or metallic particles. The disclosed compositions also include low refractive cross-linkers selected for their good thermal decomposition and reactivity to provide good cohesion during the 3D printing.
Impregnation of a fibrous material made from continuous fibres with a thermoplastic polymer matrix, the fibrous material comprising a thermoplastic sizing polymer and, before impregnation, an initial width. The method comprises an expansion step which is carried out by means of at least two tensioning members (E) and a heating system SC for heating the tensioning members and/or the fibrous material, the expansion being from 1.5 to 5 times the initial width. The expanded fibrous material is cooled below the Tg of the thermoplastic sizing polymer by means of a cooling system before being brought into contact with the thermoplastic polymer matrix.
The invention relates to the use of a powder comprising at least one polyamide and at least one epoxy resin for producing an electrically insulating coating on a surface. The invention also relates to an electricity transmitting component at least partially covered with a coating that can be obtained by melting such a powder.
The present invention relates to packaging for at least 100 kg of powder of an ionic compound containing one fluorine atom, in particular LiFSl, the packaging comprising a flexible wall provided with an opening of at least 80 cm² and having a thickness of at most 500 µm and a water vapour transmission rate, at 25°C and 90% relative humidity, of at most 0.05 g/m²/24 h. It also relates to a package for storing and transporting such an ionic compound, comprising this packaging and an outer container comprising a flexible wall; a mixing device for mixing the contents of the packaging; the use of the packaging for transporting at least 100 kg of powder of an ionic compound containing one fluorine atom; and a method for loading or unloading at least 100 kg of powder of such an ionic compound.
B01F 31/55 - Mixers with shaking, oscillating, or vibrating mechanisms the materials to be mixed being contained in a flexible bag submitted to periodical deformation
59.
METHOD FOR DRYING METHYL MERCAPTAN BY MEANS OF AZEOTROPIC DISTILLATION
The present invention relates to a process for drying methyl mercaptan, notably by azeotropic distillation, comprising the following steps:
1) a stream (A) comprising methyl mercaptan and water is introduced into a distillation column (1);
2) said stream (A) is distilled in said column (1);
3) the distillate (B) is recovered in gaseous form, preferably at the top of the column;
4) the distillate (B) is condensed, preferably in a condenser (2), so as to obtain a condensate (C) in liquid form;
5) said condensate (C) is separated, preferably using a decanter (3), so as to obtain two separate liquid phases:
an aqueous phase (D); and
an organic phase (E) comprising methyl mercaptan;
6) all or part of the organic phase (E) is optionally introduced into the distillation column (1) as reflux; and
7) a stream (F) comprising the dried methyl mercaptan is recovered, preferably at the bottom of column (1).
The present invention relates to a process for drying methyl mercaptan, notably by azeotropic distillation, comprising the following steps:
1) a stream (A) comprising methyl mercaptan and water is introduced into a distillation column (1);
2) said stream (A) is distilled in said column (1);
3) the distillate (B) is recovered in gaseous form, preferably at the top of the column;
4) the distillate (B) is condensed, preferably in a condenser (2), so as to obtain a condensate (C) in liquid form;
5) said condensate (C) is separated, preferably using a decanter (3), so as to obtain two separate liquid phases:
an aqueous phase (D); and
an organic phase (E) comprising methyl mercaptan;
6) all or part of the organic phase (E) is optionally introduced into the distillation column (1) as reflux; and
7) a stream (F) comprising the dried methyl mercaptan is recovered, preferably at the bottom of column (1).
The present invention also relates to processes for producing methyl mercaptan comprising said drying process.
C07C 319/08 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols by replacement of hydroxy groups or etherified or esterified hydroxy groups
The invention relates to a method for separation of a polymeric article comprising at least one thermoplastic polymer, and at least one other constituent, wherein said separation method comprises: —a step of contacting the polymeric article with a liquid medium suitable for propagating shock waves, and —a step of applying a pulsed field to the liquid medium, so as to generate shock waves capable of dividing the polymeric article at an interface between the thermoplastic polymer and the other constituent.
The present invention relates to a process for the suspension polymerization of alkoxyamines with styrenic and (meth)acrylic monomers, to the beads and compositions thus obtained, and also to the use of these beads and compositions.
C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
62.
METHOD FOR PREPARING A COMPOSITION IN POWDER FORM COMPRISING AT LEAST ONE SOLID ORGANIC PEROXIDE
The present invention deals with a method for producing a powdered composition comprising at least one solid organic peroxide displaying the assets of having a reduced water-content and being easily flowable. The invention also pertains to a powdered composition which is obtainable from the method as defined herein. The instant invention further relates to the use of said powdered composition as polymerization initiator for acrylic resins or unsaturated polyester resins, preferably acrylic resins, or as a polymer modifier, for example as a polymer crosslinking agent, grafting agent or rheology modifier, preferably as a polymerization initiator for acrylic resins or unsaturated polyester resins. The invention still further relates to the use of said powdered composition for road marking, chemical anchoring, water proofing and floor coating applications, preferably road marking.
E01F 9/506 - Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
C09K 17/40 - Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
63.
METHOD FOR MANUFACTURING AN ARTICLE BY MATERIAL ADDITIVE EXTRUSION PRINTING USING A RHEOLOGY MODIFIER
A method of manufacturing an article by material additive extrusion printing, comprising: • - providing a thermoplastic polymer composition to a print head; and • - depositing the thermoplastic polymer composition from the print head onto a print bed to form the article; wherein: • - the thermoplastic polymer composition comprises one or more thermoplastic polymers; • - the thermoplastic polymer(s) comprise(s) at least one semi- crystalline thermoplastic polymer, the proportion of the semi- crystalline thermoplastic polymer(s) among the thermoplastic polymer(s) being at least 50 wt. %; • - the thermoplastic polymer composition comprises a rheology modifier; • - the thermoplastic polymer composition has a glass transition temperature Tg; and • - the print bed and article being printed are in a build chamber, which is at a temperature greater than Tg - 10°C.
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]
B33Y 70/00 - Materials specially adapted for additive manufacturing
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
Goods & Services
Unprocessed acrylic resins; chemical additives for inks;
chemical additives for paints; anti-flow agents, chemical
additives for preventing sedimentation, in the industrial
field; catalysts; chemical products for industry; chemical
condensation products; chemicals for preparing colors,
chemicals for preparing pigments, chemicals for preparing
dyes or paints; dispersions of plastic materials; aqueous
dispersions of synthetic resins; emulsifiers; unprocessed
epoxy resins; flocculants; unprocessed plastic materials;
plastisols; unprocessed synthetic resins. Coatings (paints); wood stains; coatings for cardboard
(paints); protective coatings for vehicle chassis;
colorants; thinners for colorants, pigments, dyes or paints;
thickeners for colors, pigments, dyes or paints; binding
agents for colors, pigments, dyes or paints; diluting
products for lacquers and paints; printing inks; inks
(toners) for photocopying apparatus and machines; fixatives
[varnishes]; engraving inks; printers' pastes [ink];
lacquers; paints; pigments; varnishes.
65.
COMPOSITION COMPRISING AT LEAST ONE SOLID ORGANIC PEROXIDE
The present invention relates to a composition comprising at least one solid organic peroxide, at least one polyol having a melting temperature lower than 40°C, preferably lower than 30°C, even more preferably lower than 20°C, at least one dispersing agent and at least one thickening agent. The invention also relates to the use of the composition as defined above as a polymerization initiator, as a polymer modifier, or as a bleaching agent. The present invention also relates to a method for preparing such a composition.
The present invention relates to a method for purifying an aqueous hydrogen peroxide solution, comprising at least one treatment on a reverse osmosis membrane and at least one electrodeionisation treatment. The invention also relates to a method for preparing an aqueous hydrogen peroxide solution, comprising at least one step of synthesising an aqueous hydrogen peroxide solution, at least one treatment on a reverse osmosis membrane, and at least one electrodeionisation treatment of the solution. The invention also relates to an aqueous hydrogen peroxide solution obtainable by the purification method or the preparation method as defined above.
The present invention concerns a method for sulfhydrolysis from dialkyl sulfides and hydrogen sulfide, in the presence of a specific catalyst based on titanium dioxide and/or zirconium dioxide, as well as the corresponding use of such a catalyst. The present invention also concerns a method for preparing mercaptans, in particular methyl mercaptan, from at least one alcohol and hydrogen sulfide, comprising said sulfhydrolysis method.
The present invention deals with a composition comprising at least one organic peroxide, at least one sulfur-containing compound chosen among the group consisting of dialkyl phosphorodithioic acid and salts thereof, and optionally sulfur under its free form.
The invention relates to a composition comprising a salt composed of a sodium cation and of an anion of formula (II): [Chem 8] in which R1and R2 independently represent a fluorine atom or a perfluorinated group, the composition having a content of sulfamate ions of from 0.1 to 3000 ppm by weight. The invention also relates to a process for preparing this composition, and to an electrolyte comprising the composition.
The invention relates to a composition comprising a salt composed of a sodium cation and an anion of formula (II) [Chem 7] wherein R 1and R 2independently represent a fluorine atom or a perfluorinated group, the composition having an acetamide content of 0.1-1000 ppm by weight. The invention also relates to a method for producing the composition, and to an electrolyte containing same.
A transparent molding composition including, by weight (with a total of 100%): (A) 35 to 84% of a polyamide mixture including: 10 to 95% by weight of at least one semi-crystalline aliphatic polyamide, whose average number of carbon atoms relative to nitrogen atoms is greater than or equal to 8; 90 to 5% by weight of at least one amorphous polyamide; (B) from over 10 to 30% of at least one impact modifier; (C) from 6 to 20% of short glass fibers; (D) 0 to 10% of at least one prepolymer; and (E) 0 to 5% of at least one additive selected from stabilizers, dyes, plasticizers, processing aids or a mixture thereof, the index of refraction of each constituent (A), (B), (C) and (D) being included between 1.500 and 1.540, and wherein said composition has no PEBA and has a dry-measured modulus at 23° C. over 1700 MPa.
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
A plurality of multiphase polymer particles comprising an acrylic-based copolymer derived from monomers comprising: an alkyl methacrylate; an alkyl acrylate; a hydroxyalkyl acrylate or hydroxyalkyl methacrylate; at least one acid; a carboxyalkyl (meth)acrylate; a vinyl ester, and at least one co-polymerizable surfactant. Also disclosed is an emulsion comprising: a plurality of multiphase polymer particles comprising an acrylic-based copolymer, at least one co-polymerizable surfactant, at least one alkylphenol ethoxylate (APE) free nonionic surfactant, and at least one APE free anionic surfactant in an aqueous medium in presence of a free-radical initiator and a buffer. Another objective of this application discloses a water-dispersible acrylic pressure sensitive adhesive composition for label applications, a process for the preparation thereof and a method of bonding a label to a container with the composition.
C09J 133/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
gg monomer units; polymerized chromophore monomer units comprising a chromophore moiety selected from a thioxanthone, an anthraquinone, or a camphorquinone; and optionally polymerized additional monomer units is provided. A cured composition is also provided that is a product of photocuring a composition comprising the acrylic copolymer wherein the cured composition exhibits low yellowing. Also provided is a method of coating a substrate comprising applying a composition including the acrylic copolymer to the substrate and exposing the coating to UV radiation to cure the composition.
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
ggg monomer units, polymerized chromophore monomer units, and optionally at least one polymerized additional monomer unit. The invention also relates to use of the curable composition as a pressure sensitive adhesive curable composition and methods of coating a substrate.
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
C09J 4/06 - Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
ggg monomer units, polymerized chromophore monomer units, and optionally at least one polymerized additional monomer unit. The invention also relates to an ultraviolet curable composition comprising the oligomer, and a coating formed from curing the ultraviolet curable composition.
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
The invention concerns a cathode composition comprising an intrinsically incorporated catholyte. The invention also concerns a quasi-solid-state Li-ion battery comprising said cathode, an anode and a separator, and a method for manufacturing said Li-ion battery.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/609 - Arrangements or processes for filling with liquid, e.g. electrolytes
77.
METHOD FOR PREPARING METHYL MERCAPTAN WITH TREATMENT OF GASEOUS WASTE
The present invention relates to a process for producing methyl mercaptan, comprising the following steps:
A) methanol is reacted with hydrogen sulfide to form a stream (M), preferably in gaseous form, comprising methyl mercaptan, unreacted H2S and possibly sulfur byproducts;
B) optionally, said stream (M) is condensed;
C) at least one step of purification of said stream (M) is performed to obtain a stream enriched in methyl mercaptan;
D) the gaseous vents resulting from said at least one purification step are recovered, said gaseous vents comprising at least one sulfur compound, preferably H2S;
E) a gas-liquid extraction of said at least one sulfur compound, preferably H2S, is performed with liquid methanol so as to obtain a liquid methanol enriched in sulfur compound(s), preferably in H2S; and
F) optionally, said enriched methanol is used as reagent for the reaction of step A).
C07C 319/08 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols by replacement of hydroxy groups or etherified or esterified hydroxy groups
The present invention relates to a method for purifying chlorotrifluoroethylene from a mixture comprising chlorotrifluoroethylene (CTFE) and a hydrofluoroolefin; said method comprising a step (a') of bringing said mixture into contact with a membrane M3 to form a stream F1' comprising chlorotrifluoroethylene and a stream F2' comprising said fluoroolefin, characterised in that said hydrofluoroolefin is selected from the group consisting of 1,1-difluoroethylene, E/Z-1,2-difluoroethylene, tetrafluoroethylene, hexafluoropropene, 2,3,3,3-tetrafluoropropene, E/Z-1,3,3,3-tetrafluoropropene, 1,1,3,3-tetrafluoropropene, E/Z-1,2,3,3-tetrafluoropropène, 1,1,2,3-tetrafluoropropene, 3,3,3-trifluoropropene, 1,3,3-trifluoropropene, 2,3,3-trifluoropropene, 1,1,3-trifluoropropene, 1,2,3- trifluoropropene, 1,1,2-trifluoropropene, 1,2,3,3,3-pentafluoropropene, 1,1,3,3,3- pentafluoropropene, 1,1,2,3,3-pentafluoropropene, 1,1-difluoropropene, E/Z-1,2-difluoropropene, E/Z-1,3-difluoropropene, 2,3-difluoropropene, 3,3-difluoropropene, 1-fluoropropene, 2-fluoropropene, 3-fluoropropene, E/Z-1,1,1,4,4,4-hexafluorobut-2-ene.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
B01D 53/22 - 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 diffusion
The present invention relates to a method for purifying 1,1,1,2,3,3-hexafluoropropane from a mixture comprising 1,1,1,2,3,3-hexafluoropropane and at least one contaminant selected from the group consisting of hydrogen, nitrogen and oxygen; said method comprising a step (a) of contacting said mixture with a membrane to form a flow comprising said 1,1,1,2,3,3-hexafluoropropane and a flow comprising said at least one contaminant.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
B01D 53/22 - 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 diffusion
The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising:
from 90 to 99.9% by weight of said block copolymer; and
from 0.01 to 10% by weight of metal carbonate,
for the total weight of the foam composition.
The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising:
from 90 to 99.9% by weight of said block copolymer; and
from 0.01 to 10% by weight of metal carbonate,
for the total weight of the foam composition.
The present invention also relates to a foamable composition and a method for manufacturing said foam, as well as the use of the foam in sports shoe soles, balloons or balls, gloves, personal protection equipment, rail soles, automobile parts, construction parts, electrical and electronic equipment parts, audio equipment, sound- and/or heat-proofing, and parts used to damp vibrations.
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
C08K 3/013 - Fillers, pigments or reinforcing additives
C08J 9/08 - 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 developing carbon dioxide
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
C08L 87/00 - Compositions of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
The present invention relates to a method for separating a mixture comprising a vinylidene fluoride (VDF) and hexafluoropropene (HFP), said method comprising a step (a) of contacting the mixture with a membrane M1 in order to form a flow F1 comprising the vinylidene fluoride and a flow F2 comprising the hexafluoropropene.
The present invention relates to a compound of formula (1), wherein the variables R, X, l, R 1, R 2, A, n and R 3 are as defined in the description. The invention also relates to the use of the compound of formula (1) as a surfactant.
C07C 233/36 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
The invention mainly relates to single-material footwear consisting of: (i) 15% to 65% by weight of thermoplastic polymer chosen from polyamides or copolyamides; (ii) 35% to 85% by weight of PEBA thermoplastic elastomer; and (iii) 0 to 15% by weight of additives. The invention also relates to a method for manufacturing same and also for the recycling thereof, and also to the composition obtainable after recycling and the use thereof for the manufacture of footwear.
The invention relates to a pulverulent composition comprising a powder based on at least one polyaryl ether ketone, said composition having at least a first endothermic peak and a second endothermic peak, the first endothermic peak having a peak temperature strictly greater than 280° C., and the second endothermic peak having a peak temperature equal to a value of 200° C. to 280° C.; the endothermic peaks are measured on a thermogram obtained by differential scanning calorimetry, according to the standard ISO 11357-3: 2018, on first heating, using a temperature ramp of 20° C./minute. The invention also relates to a method for the electromagnetic radiation-mediated layer-by-layer sintering construction of a three-dimensional object from the pulverulent composition, to a method for determining the minimum construction temperature to be used, and also to objects that may be manufactured via this construction process.
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
85.
METHOD FOR THE CONTINUOUS PREPARATION OF POLYAMIDE PREPOLYMERS
The present invention relates to a method for continuously preparing a polyamide prepolymer, the viscosity in solution of which is comprised between 0.25 dL/g and 0.70 dL/g, as measured according to ISO 307:2007 in m-cresol at 20° C.,
the method being characterized in that it comprises a step of polycondensation on the basis of one or more polyamide precursor monomers, said polycondensation step being carried out in a extruder comprising at least two co-rotating conveying screws, the at least one monomer being previously added therein in solid or liquid form without being dissolved in a solvent or in water, and said polycondensation step being carried out without extracting the water formed during said polycondensation.
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
86.
ALKYD EMULSION HAVING IMPROVED WATER RESISTANCE AND IMPROVED HARDNESS DEVELOPMENT
The present invention relates to an alkyd emulsion comprising an alkyd resin based on a conjugated fatty acid, as well as a reactive surfactant. The invention also covers a method for preparing the alkyd emulsion, and the use thereof in decorative coatings. The coating obtained with this alkyd emulsion has improved performance in terms of water resistance and hardness development.
The present invention relates to a recyclable multilayer structure for transporting, distributing or storing fluids, comprising, from the outside inwards: 1) an outer layer (I) made of polyamide comprising a composition comprising: a) from 41% to 100% by weight of at least one polyamide having a C/N ratio of greater than 7, b) from 0 to 10% by weight of at least one polyamide different from the preceding one having a C/N ratio of less than 10, c) from 0 to 30% by weight of at least one impact modifier, d) from 0 to 5% by weight of at least one additive, e) from 0 to 14% by weight of at least one plasticizer, the sum of the constituents a) + b) + c) +d) + e) being equal to 100% by weight; 2) a barrier layer (II) which is water-soluble at a temperature below or equal to 150°C; 3) an inner layer (III) made of polyamide comprising a composition comprising: a) from 41% to 100% by weight of at least one polyamide having a C/N ratio of greater than 7, b) from 0 to 10% by weight of at least one polyamide different from the preceding one having a C/N ratio of less than 10, c) from 0 to 30% by weight of at least one impact modifier, d) from 0 to 5% by weight of at least one additive, e) from 0 to 14% by weight of at least one plasticizer, the sum of the constituents a) + b) + c) +d) + e) being equal to 100% by weight; and/or (IV) comprising predominantly at least one polyamide of aliphatic type or consisting of more than 75% of aliphatic units.
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
B32B 27/22 - Layered products essentially comprising synthetic resin characterised by the use of special additives using plasticisers
The invention mainly relates to a two-layer composite comprising a layer A and a layer B, wherein - layer A comprises at least 30% by weight relative to the weight of layer A of at least one thermoplastic polymer; and - layer B comprises at least 25% by weight relative to the weight of layer B of at least one thermoplastic polymer and 1% to 75% by weight relative to the total weight of layer B of particles of crosslinked rubber. The invention furthermore relates to a method for the manufacture thereof and also the use thereof, the resulting objects, a method for recycling same, the obtainable composition and the use thereof.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
The present invention relates to a single-layer or multi-layer tubular structure for transporting a cooling liquid, the tube being intended for fuel cell cooling, comprising at least one internal layer (I) comprising at least one thermoplastic polymer chosen from a polyolefin, a thermoplastic vulcanizate (TPV), a fluorinated polymer, a polyphenylene sulfide (PPS) and a polyphthalamide (PPA), the cooling liquid having a dielectric conductivity of less than 30 µS/cm, as determined after ageing the single-layer or multi-layer tubular structure in contact with the cooling liquid for 168 hours at 80°C.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
The present invention relates to a process for treating, in a reactor containing a catalytic bed, a solid catalyst, said process comprising the steps of: a) implementing, in said reactor, a gas-phase catalytic reaction at a catalytic bed temperature T1 in the presence of a hydrogen halide or giving rise to the formation of a hydrogen halide, b) causing an inert gas to flow through the catalytic bed at a catalytic bed temperature T2 that is lower than T1, the temperature T2 being greater than 30° C.
A transparent molding composition, including by weight: (a) from 30 to 90% of at least one (co)polyamide of formula PACMY/Z, (b) from 10 to 70% by weight of at least one semi-crystalline copolyamide of formula A/WS, (c) from 0 to 10% of at least one impact modifier chosen from the polyether block amides (PEBA) and the core-shell polymers, (d) from 0 to 2% by weight of at least one additive, (e) from 0 to 5% by weight of a prepolymer; the sum of the proportions of each constituent of said composition being equal to 100%, the composition having good alcohol resistance as determined by an ethanol resistance test.
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
92.
PROCESS FOR SYNTHESIZING FUNCTIONALIZED MERCAPTANS UNDER AN H2S PRESSURE
The present invention relates to a process for synthesizing a functionalized mercaptan, comprising the reaction between a compound of formula R2—X—C*H(NR1R7)—(CH2)n-G (II) and H2S in the presence of at least one enzyme chosen from sulfhydrylases; said reaction being performed in a reactor with a partial pressure of H2S in the gas headspace of said reactor of between 0.01 and 4 bar, preferably between 0.1 and 3 bar, for example between 0.1 and 2.5 bar, and more preferentially between 0.25 and 2 bar, at the reaction temperature.
A multilayer structure which is chosen from among a tank, a pipe or a tube and intended for transporting, distributing or storing liquid hydrogen, the structure including a sealing layer in contact with the liquid hydrogen, the sealing layer including a composition which includes a polymer P1 which is polychlorotrifluoroethylene and at least one second layer located above the sealing layer, the second layer being a composite reinforcing layer of a fibrous material in the form of continuous fibers impregnated with a composition mainly including at least one thermoplastic or thermosetting polymer P2.
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 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
94.
PROCESS FOR THE CONTINUOUS UPGRADING OF HEAVY BY-PRODUCTS FROM ACRYLIC ACID PRODUCTION
The present invention relates to a method for recovering, by thermal cracking, acrylic acid (AA) from heavy by-products (residues called LAA) from an AA production unit, for recycling in the acrylic acid production facility. Said method consists of two continuous steps while improving the current performance of cracking plants.
The present invention relates to a method for recovering, by thermal cracking, acrylic acid (AA) from heavy by-products (residues called LAA) from an AA production unit, for recycling in the acrylic acid production facility. Said method consists of two steps, batchwise hydrolysis and continuous cracking, and improves the current performance of cracking plants.
The depolymerization method comprises the successive steps of pyrolizing a feed material containing polymer in a pyrolysis reactor so as to generate a hot gas stream, removing solid and liquid impurities from the gas stream in a separator and condensing the monomer contained in the gas stream in a condenser. The gas stream is transferred from the separator to the condenser via a transfer column which is provided with internals. Cold monomer in liquid state is injected into the transfer column, the internals being configured such that the cold monomer flows downwardly inside the transfer column by gravity, heavy contaminants contained in the gas stream condense in liquid state on the internals and flow back down by gravity towards the bottom of the transfer column and into the separator.
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
C07C 67/333 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by change of size of the carbon skeleton
C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
C10B 57/06 - Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
C10G 1/10 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
B01D 5/00 - Condensation of vapours; Recovering volatile solvents by condensation
C10B 47/00 - Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
B01D 1/14 - Evaporating with heated gases or vapours in contact with the liquid
The present invention relates to a method for regenerating acrylic acid (AA), by thermal cracking, from heavy by-products (residues referred to as LAA) from an AA production unit, for the purpose of recycling same in the facility for producing acrylic acid. This method consists of two steps carried out in batches, improving the current performance of cracking plants.
The present invention relates to a method for regenerating acrylic acid (AA), by thermal cracking, from heavy by-products (residues referred to as LAA) from an AA production unit, for the purpose of recycling same in the facility for producing acrylic acid. This method consists of two steps, hydrolysis and cracking, carried out in batches in the same reactor, and improves the current performance of cracking plants.
The invention relates to a method for preparing hydrazine hydrate, which comprises the following successive steps: a) preparing, by means of an absorption column, an aqueous solution containing solubilised ammonia and containing at least one activator, by introducing an aqueous solution comprising at least one activator and fresh ammonia into the absorption column; then b) reacting, inside at least one reactor, the aqueous ammonia solution containing at least one activator obtained in the preceding step with hydrogen peroxide and a ketone; then c) separating the azine-containing organic phase of the aqueous phase from the stream formed as a result of the preceding step; and then d) hydrolysing the organic phase obtained in the previous step to obtain hydrazine hydrate.
12122 denoting, independently of each other, a methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl and octyl group, in the presence of an aqueous solution comprising at least one activator to form an azine, the reaction being carried out in at least two reactors arranged in cascade, the agitation of the first reactor being less than the agitation of the or each of the following reactors, the reactants being injected into the first reactor, the aqueous solution comprising at least one activator and comprising solubilised ammonia in a proportion of between 50% and 100% relative to the saturation of the ammonia in pure water at the temperature of the aqueous solution.
