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Arkema Inc patents (2015 archive)


Recent patent applications related to Arkema Inc. Arkema Inc is listed as an Agent/Assignee. Note: Arkema Inc may have other listings under different names/spellings. We're not affiliated with Arkema Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Arkema Inc-related inventors


12/31/15 / #20150377389

Use of semi-aromatic copolyamide for transporting refrigerant fluid

The invention relates to the use of a layer consisting of a composition comprising a copolyamide of formula x/10.t/y for transporting a heat transfer fluid in a vapor compression circuit, wherein: x represents either the residues of an aliphatic amino acid comprising between 8 and 18 carbon atoms, or a lactam, or the unit x1.x2 representing the residues resulting from the condensation of an aliphatic diamine comprising between 6 and 18 carbon atoms and a (cyclo)aliphatic diacid comprising between 6 and 18 carbon atoms; 10.t represents the residues resulting from the condensation of a decanediamine and terephthalic acid; and y represents the residues resulting from the condensation of an aliphatic diamine comprising between 9 and 14 carbon atoms and an aromatic diacid, y being different from the unit 10.t; the molar proportion of 10.t units being higher than 0%.. . ... Arkema Inc

12/31/15 / #20150376485

Compositions of 2,4,4,4-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene

A composition including 2,4,4,4-10-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene, and also the use thereof in particular as a heat transfer fluid. The composition may include: from 1% to 99% of 2,4,4,4-tetrafluorobut-1-ene and from 1% to 99% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 5% to 70% of 2,4,4,4-tetrafluorobut-1-ene and from 30% to 95% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 20% to 65% of 2,4,4,4-tetrafluorobut-1-ene and from 35% to 80% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 25% to 60% of 2,4,4,4-tetrafluorobut-1-ene and from 40% to 75% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 28% to 51% of 2,4,4,4-tetrafluorobut-1-ene and from 49% to 72% of cis-1,1,1,4,4,4-hexafluorobut-2-ene.. ... Arkema Inc

12/31/15 / #20150376335

Thermoplastic structure for transporting refrigerant fluid

The invention relates to a thermoplastic structure comprising at least one layer consisting of a composition comprising a copolyamide of formula x/10.t/y, wherein: x represents either the residues of an aliphatic amino acid comprising between 8 and 18 carbon atoms, or a lactam, or the unit x1.x2 representing the residues resulting from the condensation of an aliphatic diamine comprising between 6 and 18 carbon atoms and a (cyclo)aliphatic diacid comprising between 6 and 18 carbon atoms; 10.t represents the residues resulting from the condensation of a decanediamine and terephthalic acid; and y represents the residues resulting from the condensation of an aliphatic diamine comprising between 9 and 14 carbon atoms and an aromatic diacid, y being different from the unit 10.t; the molar proportion of 10.t units in the copolyamide being higher than 0%; the molar proportion of y units in relation to the group of 10.t and y units being between 0 and 30%; and the proportion of x units being between 0.4 and 0.8 mole for a mole of semi-aromatic units 10.t and y.. . ... Arkema Inc

12/31/15 / #20150376108

Synthesis of a branched unsaturated compound by means of cross metathesis

The invention relates to a method for the synthesis of a branched unsaturated fatty compound, said method comprising the metathesis, in the presence of a metathesis catalyst, of a linear unsaturated fatty compound and a branched olefin. The branched unsaturated fatty compound is used in particular for the production of at least one of the following products: dielectric fluids, specialty surfactants, emulsifiers, frictions agents, antistatic additives, antifogging additives, mould release agents, pigment dispersants, high-performance lubricants, waxes and wax emulsifiers, polymer conversion additives, pvc stabilising agents, inks, resins, paints, varnishes, solvents, lipsticks, creams for the skin, deodorants, particularly stick deodorants, hair dyes, shampoos and other liquid soaps, shaving foam, laundry detergents, cleaning agents, fabric softeners, and mixtures of same.. ... Arkema Inc

12/31/15 / #20150375464

Method for producing a multilayer composite material, multilayer composite material obtained by the method and mechanical parts or structures produced with said material

Method for producing a multilayer composite material, according to which said multilayer composite material, multilayer composite material obtained by the methosod and mechanical parts or structures produced with said material. The present invention. ... Arkema Inc

12/24/15 / #20150372289

Method for manufacturing an electrode paste

A method for the manufacture of a paste composition suitable for the production of an electrode for lead-acid battery, including mixing a carbon nanofiller/lead oxide composite of a first particulate size with sulphuric acid, water and further lead oxide of a second particulate size. Also, the paste thus obtained, the composite used in its manufacture, and the electrode and lead-acid battery obtained from this paste.. ... Arkema Inc

12/17/15 / #20150361204

Use of a fluid polymeric composition for encapsulating photovoltaic modules

The use of a polymeric composition as an encapsulant in a photovoltaic module, said polymeric composition including a copolymer that comprises an ethylene monomer and a carboxylic acid vinyl ester comonomer, in particular an ethylene vinyl acetate copolymer, and the polymeric composition having a brookfield viscosity measured at 120° c. Of between 10,000 mpa·s and 25,000 mpa·s. ... Arkema Inc

12/17/15 / #20150360218

Activation and regeneration of fluorination catalysts

A fluorination catalyst such as a chromium oxide-based fluorination catalyst may be activated or reactivated by contacting the catalyst. With a source of reactive fluorine, for example nitrogen trifluoride (nf3) or fluorine (f2). ... Arkema Inc

12/10/15 / #20150353802

Binary refrigerating fluid

Binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. Also, a method of heat transfer in which a binary composition of 2,3,3,3-tetrafluoropropene and difluoromethane is used as refrigerant in compression systems with exchangers in countercurrent mode or in crossed-current mode with countercurrent tendency.. ... Arkema Inc

12/10/15 / #20150353799

Azeotropic or quasi-azeotropic composition of chloromethane

Quasi-azeotropic or azeotropic compositions containing chloromethane and at least one or more compound(s) selected from 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 1,1,1,2-tetrafluoroethane, 1,1,1,2,2-pentafluoropropane, e/z-1,1,3,3,3-pentafluoropropene, e/z-1,2,3,3,3-pentafluoropropene, 1,1-difluoroethane and e-1,3,3,3-tetrafluoropropene. The composition may include either from 0.5 to 70 mol % of chloromethane and at least from 99.5 to 30 mol % of a compound selected from 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane, 3,3,3-trifluoropropene and 1,1,1,2-tetrafluoroethane, or from 55 to 95 mol % of chloromethane and at least from 45 to 5 mol % of one or more compound(s) selected from 1,1,1,2,2-pentafluoropropane, e/z-1,1,3,3,3-pentafluoropropene, e/z-1,2,3,3,3-pentafluoropropene and e-1,3,3,3-tetrafluoropropene.. ... Arkema Inc

12/10/15 / #20150353792

Adhesive composition and structure comprising at least one layer of said composition

An adhesive composition including predominantly one or two polyamide(s) having units chosen from: at least one unit denoted a having an average number of carbon atoms per nitrogen atom, denoted ca, ranging from 4 to 8.5, advantageously from 4 to 7; at least one unit denoted b having an average number of carbon atoms per nitrogen atom, denoted cb, ranging from 7 to 10, advantageously from 7.5 to 9.5; and at least one unit denoted c having an average number of carbon atoms per nitrogen atom, denoted cc, ranging from 9 to 18, advantageously from 10 to 18, and to the use thereof.. . ... Arkema Inc

12/10/15 / #20150353479

Cross metathesis process

A process for the synthesis of an unsaturated product by cross metathesis between a first unsaturated compound having at least 8 carbon atoms and a second unsaturated compound having less than 8 carbon atoms, including: feeding a reactor with the first unsaturated compound, the second unsaturated compound and a metathesis catalyst; withdrawing an output stream, at the output of the reactor; separating the output stream, making it possible to recover at least: on the one hand, the unsaturated product and, on the other hand, the first unsaturated compound and the second unsaturated compound; recycling the first unsaturated compound and the second unsaturated compound to the reactor; in which the first unsaturated compound is capable of producing an unsaturated coproduct, including at least 14 carbon atoms, by homometathesis; and in which the flow rates for feeding the reactor with first unsaturated compound and with second unsaturated compound are adjusted.. . ... Arkema Inc

12/03/15 / #20150344761

Use of ternary compositions

The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane, as a heat-transfer fluid, in compression refrigeration systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency. A heat-transfer process in which a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane is used as a refrigerant in compression systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency.. ... Arkema Inc

12/03/15 / #20150344757

Composition containing 1,1,-difluoroethane and 3,3,3-trifluoropropene

Compositions containing 1,1-difluoroethane and 3,3,3-trifluoropropene, that can be used in multiple fields of application. The composition may include from 25 to 65 mol % of 1,1-difluoroethane and from 75 to 35 mol % of 3,3,3-trifluoropropene at a temperature of between −25° c. ... Arkema Inc

12/03/15 / #20150344416

Cross metathesis process

A process for the synthesis of an unsaturated product by cross metathesis between a first unsaturated compound having at least 8 carbon atoms and a second unsaturated compound having less than 8 carbon atoms, the first unsaturated compound being capable of producing an unsaturated coproduct comprising more than 14 carbon atoms, by homometathesis, said process including at least one production phase which includes: feeding a reactor with the first unsaturated compound; feeding the reactor with the second unsaturated compound; feeding the reactor with at least a first metathesis catalysts, then feeding the reactor with at least a second metathesis catalyst; withdrawing a product stream arising from the reactor; the turnover number of the first catalyst being higher than the turnover number of the second catalyst so as to achieve the same target degree of conversion of the first unsaturated compound.. . ... Arkema Inc

11/26/15 / #20150340676

Integrated electrode separator assemblies for lithium ion batteries

The invention relates to integrated electrode separators (ies), and their use in lithium ion batteries as replacements for free standing separators. The ies results from coating an electrode with a fluoropolymer aqueous-based emulsion or suspension, and drying the coating to produce a tough, porous separator layer on the electrodes. ... Arkema Inc

11/26/15 / #20150336879

Process for the synthesis of omega-unsaturated nitrile-acid/ester in which two types of cross metathesis are alternated consecutively, swing process

A process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound i including at least one trivalent nitrile, acid or ester functional group, wherein the process includes a stage in which two types of cross metathesis are alternated consecutively: — a first type of cross metathesis cm1 with an acrylic compound ii chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds i or ii including a nitrile functional group and the other of these compounds ii or i including an acid or ester functional group, and—a second type of cross metathesis cm2 with a light c2 to c4 alkene compound iii. Also, a process for the synthesis of an α,ω-amino ester (acid) obtained by a process including a stage in which the two types of cross metathesis defined above are alternated consecutively, followed by a hydrogenation stage.. ... Arkema Inc

11/26/15 / #20150336338

Process for manufacturing a fibrous material pre-impregnated with thermoplastic polymer

A process for manufacturing a pre-impregnated fibrous material, including a step of impregnation of said fibrous material with a matrix being of a thermoplastic polymer in the molten state. This process is characterized in that, prior to the impregnation step, an insertion step of incorporating, into said impregnating thermoplastic polymer, a lubricant including at least one oligomer chosen from oligomers of a cyclic ester, oligomers of a cyclic ether and oligomers of an organomineral compound. ... Arkema Inc

11/19/15 / #firstly, the invention concerns an organic resin that comprises structural units in its overall composition obtained from:

Arkema France

. . ... Arkema Inc

11/19/15 / #20150333205

Thermoplastic composition having a high polyamide grafting rate

A polyamide-grafted polyolefin composition in which the grafting rate of the composition is between 41% and 70% by weight. Also, a thermoplastic composition including a polyolefin backbone comprising a residue of at least one unsaturated monomer (x) and a plurality of polyamide grafts, in which: the polyamide grafts are attached to the polyolefin backbone by the residue of the unsaturated monomer (x) comprising a functional group capable of reacting by a condensation reaction with a polyamide having at least one amine end and/or at least one carboxylic acid end, the residue of the unsaturated monomer (x) is attached to the backbone by grafting or copolymerization, wherein the polyamide grafts represent from 41% to 70%, preferably from 45% to 70%, by mass of said polyamide-grafted polymer. ... Arkema Inc

11/19/15 / #20150329697

Irradiated fluoropolymer articles having low leachable fluoride ions

The invention relates to fluoropolymer articles that have been irradiated with at least 5 kilo gray of radiation, where the resulting articles have low levels of leachable or extractable fluoride ion. The low fluoride ion migration from the irradiated article is due to the presence of low levels of metallic salts or oxides in the fluoropolymer composition. ... Arkema Inc

11/12/15 / #20150322622

Fibrous substrate, manufacturing process and uses of such a fibrous substrate

A fibrous substrate such as woven fabrics, felts, nonwoven fabrics that may be in the form of strips, laps or braids, said substrate being impregnated with an organic polymer or blend of organic polymers containing carbon nanotubes (cnts). A process for manufacturing said substrate, and the various uses thereof for the manufacture of 3d mechanical components.. ... Arkema Inc

11/12/15 / #20150322321

Composition containing 2,3,3,3-tetrafluoropropene and 1,2-difluoroethylene

Compositions containing 2,3,3,3-tetrafluoropropene and 1,2-difluoroethylene, that can be used in multiple fields of application. The composition can include from 45 to 90 mol % of 2,3,3,3-tetrafluoropropene and from 55 to 10 mol % of, 1,2-difluoroethylene. ... Arkema Inc

11/12/15 / #20150322317

Composition including 2,3,3,3-tetrafluoropropene

A composition including the compound hfo-1234yf and at least one other, additional, compound selected from hcfc-240db, hcfo-1233xf, hcfc-243db, hcfo-1233zd, hcc-40, hcfc-114a, hcfc-115, hcfc-122, hcfc-23, hcfc-124, hcfc-124a, hfc-125, hcfc-133a, hcfc-142, hcfc-143, hfc-52a, hcfc-243ab, hcfc-244eb, hfc-281ea, hco-1110, hcfo-1111, hcfo-1113, hcfo-1223xd, and hcfo-1224xe. A composition including the compound hfo-1234yf and at least two compounds selected from hfo-1234ze, hfc-245cb, hfc-134a, hcfc-115, hfc-152a, hcc-40 and hfo-1243zf.. ... Arkema Inc

11/05/15 / #20150315120

Process for producing alkyl acrylate

The invention relates to the production of alkyl acrylate according to a continuous transesterification process. In one embodiment the process of the invention uses a simple column to purify a reaction mixture of acryl acrylate in one step yielding alkyl acrylate with a purity of greater than 99.8%.. ... Arkema Inc

11/05/15 / #20150314277

Catalyst prepared by reactive milling

A process for preparing a catalyst, including the reactive milling of a first reagent, which is a chromium oxide compound, with a second reagent, which is a compound of the formula mzm′1-zoxfy, m and m′ each being an element having an oxidation state greater than or equal to 0, z being from 0 to 1, x being from 0 to 3, y being from 0 to 6, and 2x+y being greater than 0 and less than or equal to 6.. . ... Arkema Inc

10/29/15 / #20150307686

Pla polymer composition

The present invention relates to a polymer composition, said polymer having a main chain consisting of a polylactic acid, the main chain including a plurality of unsaturated acid anhydride grafts, characterized in that said main chain also includes activating comonomer grafts. The invention also relates to a manufacturing method and to a use linked to said polymer composition.. ... Arkema Inc

10/29/15 / #20150307673

Terpolymers and films produced therefrom

The invention relates to a polymer comprising structural units of vinylidene fluoride, trifluoroethylene and chlorotrifluoroethylene, the molar ratio between the vinylidene fluoride and the trifluoroethylene in the polymer being between 55:45 and 65:35, and the molar proportion of the structural units of chlorotrifluoroethylene in the polymer being between 1.5 and 4.5%. The invention also relates to various items comprising said polymer, such as films, fibres, extruded plates and moulded items.. ... Arkema Inc

10/22/15 / #20150303336

Weatherable composite for flexible thin film photovoltaic and light emitting diode devices

The invention provides a weatherable composite including a moisture barrier system having a moisture vapor transmission rate at or below 1×10−2 g/m2/day, at least one weatherable layer or coating, and a substrate that is disposed between the moisture barrier system and the weatherable layer or coating. The weatherable composite may be adhered to one or both sides (e.g., front and back) of a photovoltaic thin-film cell or organic light emitting diode such that the weatherable layer(s) or coating side(s) of the weatherable composite is exposed to the environment. ... Arkema Inc

10/22/15 / #20150299454

Impact resistant transparent thermoplastic compositions

The invention relates to impact-modified, thermoplastic compositions, where the measured refractive index difference between the impact modifier particles and the matrix composition is greater than 0.008 units, yet a blend of the impact modifier particles in the matrix produces a transparent composition. The impact modifier particles are preferably impact modifier composite particles, being intimately blended with one or more polymeric process aids or dispersing aids. ... Arkema Inc

10/22/15 / #20150299414

Blowing agent compositions of hydrofluoroolefins and hydrochlorofluoroolefins

The present invention relates to blowing agent compositions comprising (1) at least one hydrofluoroolefin (hfo) and (2) at least one hydrochlorofluoroolefin (hcfo) used in the preparation of foamable thermoplastic compositions. The hfos of component (1) include, but are not limited too, 3,3,3-trifluoropropene (hfo-1243zf), 1,2,3,3,3-pentafluoropropene (hfo-1225ye), cis- and/or trans-1,3,3,3-tetrafluoropropene (hfo-1234ze), and 2,3,3,3-tetrafluoropropene (hfo 1234yf), and mixtures thereof. ... Arkema Inc

10/22/15 / #20150299107

Selective extraction of an omega-functionalized acid after oxidative cleavage of an unsaturated fatty acid and derivatives

The invention relates to a process for the selective extraction of a reaction product, derived from an oxidative cleavage of an unsaturated fatty acid or of an ester derivative or of an unsaturated nitrile derivative, said reaction product being an ω-functionalized acid from among c6 to c15 diacids, acid esters and acid nitriles, using as selective extraction solvent a composition comprising a mixture of water and of c1-c4 carboxylic acid. The invention also relates to the use of said process and of the extraction solvent composition for the preparation of c6 to c15 amino acid, diacid or acid ester monomers for the preparation of polycondensation polymers, in particular polyamides.. ... Arkema Inc

10/22/15 / #20150299093

Method for producing 2-octyl acrylate by direct esterification

The invention relates to a process for continuously producing 2-octyl acrylate by reacting acrylic acid and 2-octanol in the presence of a sulfonic acid esterification catalyst and at least one polymerization inhibitor. The water formed by the esterification reaction is entrained by distillation in a column surmounting the reactor in the form of a heteroazeotropic mixture with the 2-octanol which is then subjected, after condensation, to separation in a decanter so as to give an upper organic phase and a lower aqueous phase. ... Arkema Inc

10/01/15 / #20150274644

14-hydroxyeicosanoic acid-based fatty acid amide, as an organogelling agent

The invention is directed to a 14-hydroxyeicosanoic acid-based fatty acid amide which may be a monoamide or a diamide, and to the use thereof as an organogelling agent or agent, also referred to as a rheology additive, in particular in coating, molding, mastic or sealing compositions or cosmetic compositions.. . ... Arkema Inc

10/01/15 / #20150273772

Method for manufacturing a composite thermoplastic part by vacuum injection-compression-molding, device for the implementation thereof and resulting part

A method for manufacturing a composite part including a fibrous reinforcement and a thermoplastic polymer matrix, which includes the steps of i) depositing the fibrous reinforcement in a two-part mold having a seal compressible by evacuating said mold having no vent, ii) filling the evacuated mold by injecting, in the molten state, a two-component reactive system made of a reactive thermoplastic prepolymer, the injection being carried out using a device having two distinct compartments for each one of the two reactive components mixed in a static mixer, followed by a compression and compaction of the content of the mold, and iii) removing the part from the mold, without any finishing treatment. Further, a device for implementing said method, to the resulting part and to the use of said method in an “in-mold” assembly method.. ... Arkema Inc

09/24/15 / #20150267891

Optical light diffuser and method for measurement thereof

The invention relates to optical light diffusers for use with point light sources, such as led lighting. The optical diffusers achieve an optimum balance of light transmission and hiding power. ... Arkema Inc

09/24/15 / #20150267050

Thermoplastic composite material made of a semi-crystalline polyamide and method for manufacturing same

A composition for a thermoplastic composite material having a thermoplastic matrix made of a semi-crystalline polyamide having a specific composition that includes at least two amide units, a, 55-95 mol %, and b, 5-45 mol %. A corresponds to x.t, wherein x is a c9-c18 linear aliphatic diamine and b corresponds to x′.t, wherein x′ can be b1): a specific branched x-dependent aliphatic diamine, b2): mxd or b3): a linear x-dependent aliphatic diamine, said polyamide having a glass transition temperature tg of at least 90° c. ... Arkema Inc

09/24/15 / #20150266800

Method for directly synthesizing unsaturated aldehydes from alcohol mixtures

The present invention concerns a method for directly synthesizing acrolein or methacrolein from a mixture of methanol and ethanol or propanol. The method of the invention comprises two successive phases: oxidation in the presence of a selective oxidation catalyst of the light alcohols of the feedstock, then condensation by aldolisation of the aldehydes formed during oxidation in the presence of a condensation catalyst (aldolisation). ... Arkema Inc

09/17/15 / #20150258742

Process for manufacturing a thermoplastic composite part in a closed mould, with injection into a cold mould

A process for manufacturing a part made of thermoplastic composite material including a fibrous reinforcement and a matrix of thermoplastic polymer based on a thermoplastic polymer which impregnates said fibrous reinforcement, which process includes: a) a step of impregnating said dry fibrous reinforcement, by injection onto said reinforcement, of a precursor of said polymer, and moulding, with the polymerization step b) being simultaneous with the impregnating and moulding step and with the regulating temperature t2 for said mould being kept constant throughout the moulding cycle, and with reheating of the internal surface of the mould, just before said injection, using a heating means which is external to the mould and removable, with c) demoulding of the part, and d) optional continuation of the polymerization, if said polymerization is partial at demoulding, in a separate step outside the mould, by annealing in an oven at an annealing temperature.. . ... Arkema Inc

09/10/15 / #20150252240

Heat transfer composition of oxygenated lubricant with hydrofluoroolefin and hydrochlorofluoroolefin refigerants

The present invention relates to heat transfer compositions comprising an oxygenaged lubricant comprising polyvinyl ether oil and a refrigerant comprising hydrofluoroolefins and/or hydrochlorofluoroolefins. The heat transfer compositions of the present invention have the benefit of exhibiting superior thermal stability and are useful in such applications as refrigeration, air conditioning, and heat transfer systems.. ... Arkema Inc

09/03/15 / #the present invention concerns a method for preparing an alkali metal sulfide, from at least one oxygenated alkali metal compound comprising at least one step a) involving reacting said oxygenated alkali compound(s) with at least one sulfur compound of formula (i):

Arkema France

. . ... Arkema Inc

09/03/15 / #20150246812

Method for preparing imide salts containing a fluorosulphonyl group

A fluorination process for obtaining fluorinated compounds including at least one fluorosulfonyl group. More particularly, a process for preparing a fluorinated compound of formula (ii), including at least one step of reacting a compound of formula (i) with anhydrous hydrofluoric acid in at least one organic solvent, in which r1 is equal to r2 except in the specific case where r1=cl, then r2=f, and when r1 is equal to r2, r1 and r2 represent an electron-withdrawing group which has a hammett parameter op of greater than 0, such as f, cf3, chf2, ch2f, c2hf4, c2h2f3, c2h3f2, c2f5, c3f7, c3h2f5, c3h4f3, c3hf6, c4f9, c4h2f7, c4h4f5, c5f11, c3f5ocf3, c2f4ocf3, c2h2f2ocf3, cf2ocf3, c6f13, c7f15, c8f17 or c9f19, and m represents a hydrogen atom, an alkali metal, an alkaline-earth metal or a quaternary ammonium cation.. ... Arkema Inc

08/27/15 / #20150240047

Method for producing a master mixture based on carbonaceous nanofillers and superplasticiser, and the use thereof in hardenable inorganic systems

Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. ... Arkema Inc

08/27/15 / #20150239997

Primer mixture of crosslinking initiator and promoter

A primer mixture intended for crosslinking polyethylene, including at least an initiator of free radicals chosen from organic peroxides, azo compounds or mixtures thereof, wherein the mixture has said free-radical initiator and at least one crosslinking promoter chosen from the cycloalkanes having 5 to 7 carbon atoms, substituted by 1 to 3 vinyl, allyl or isopropenyl groups, the aromatic compounds substituted by 1 to 3 vinyl, allyl or isopropenyl groups, the methacrylate, acrylate and maleimide monomers being multi-substituted, and in that the weight ratio of free-radical initiator to the crosslinking promoter is greater than or equal to 1, and preferably between 1.5 and 4. Also, a method and to a use related to this primer mixture.. ... Arkema Inc

08/20/15 / #20150232590

Composition of organic peroxide without a colloid agent

An aqueous emulsion composition of organic peroxide without a protective colloid agent wherein the emulsifying agent is a nonionic surfactant chosen exclusively from a block copolymer including at least one alkylene oxide block, a block copolymer including at least two alkylene oxide blocks, an alkoxylated fatty alcohol, an alkoxylated fatty acid, an alkoxylated vegetable or animal oil (hydrogenated or not) or a mixture of a plurality of these elements. Also, a method for producing this composition and specific uses thereof.. ... Arkema Inc

08/20/15 / #20150231576

Porous separation article

The invention relates to a porous separation article having a fluoropolymer or polyamide binder interconnecting one or more types of interactive powdery materials or fibers. The interconnectivity is such that the binder connects the powdery materials or fibers in discrete spots rather than as a complete coating, allowing the materials or fibers to be in direct contact with, and interact with a fluid. ... Arkema Inc

08/13/15 / #20150225505

Copolyamide, composition comprising such a copolyamide and uses thereof

A copolyamide including at least two different repeat units having the following general formulation: a/x.y, in which a is an aliphatic repeat unit selected from a unit obtained from at least one amino acid and a unit obtained from at least one lactam, and x.y is a repeat unit obtained from the polycondensation of at least one cycloaliphatic diamine and at least one dicarboxylic acid. The proportion by weight of unit a is greater than or equal to 91%. ... Arkema Inc

08/06/15 / #20150218362

Impregnation process for a fibrous substrate, a liquid (meth) acrylic syrup for the impregnation process, its method of polymerization and structured article obtained thereof

The present invention relates to an impregnation process for a fibrous substrate, a liquid composition for implementing this process and the obtained impregnated fibrous substrate. The impregnated fibrous substrate is suitable for manufacturing mechanical or structured parts or articles. ... Arkema Inc

08/06/15 / #20150218293

Aqueous emulsion composition of organic peroxide

An aqueous emulsion composition of organic peroxide, including from 10 to 65% by weight of one or a plurality of organic peroxides, from 2 to 25% by weight of at least one antifreeze agent, from 0.01 to 10% by weight of at least one emulsifying agent, optionally at least one additive, water, of which the quantity is defined in order to form the remainder of the total composition (100%), wherein the emulsifying agent is a colloid agent of a polyvinyl acetate having a degree of hydrolysis greater than 80% and a viscosity, measured in solution in water at 4% by weight at 20° c., less than or equal to 5 mpa·s, said viscosity being measured with a brookfield rvt viscometer, needle no. 3, 20 rpm, in accordance with the iso 2555 standard. ... Arkema Inc

07/30/15 / #the invention relates to a process for the preparation of symmetrical or asymmetrical dialkyl disulphides by involving at least one mixture of symmetrical and/or asymmetrical dialkyl disulphides in a basic and/or photochemical catalytic reaction, with joint extraction, preferably continuously, of the symmetrical and/or asymmetrical disulphide(s) which it is desired to obtain.

Arkema France

. . ... Arkema Inc

07/30/15 / #20150210819

Process for the preparation of expandable polystyrene by continuous injection of a liquid organic peroxide

A process for the preparation of expandable polystyrene including the following steps: i°) heating an aqueous suspension including styrene monomer and at least one organic peroxide initiator of formula (i) 1-alkoxy-1-t-alkylperoxycyclohexane in which the alkoxy group contains 1 to 4 carbon atoms, the t-alkyl group contains 4 to 12 carbon atoms, and the cyclohexane ring may optionally be substituted with 1 to 3 alkyl groups each, independently having 1 to 3 carbon atoms, at a temperature ranging from 100° c. To 120° c.), ii°) adding a blowing agent selected from the group of alkanes having from 4 to 6 carbon atoms and mixtures thereof. ... Arkema Inc

07/30/15 / #20150210617

Method for producing difluoromethane

A method for producing difluoromethane, including the catalytic reaction of dichloromethane with hydrogen fluoride in the liquid phase, in the presence of chlorine, and in the presence of an ionic liquid catalyst consisting of the product of the reaction of antimony pentachloride with an organic salt having the general formula x+a, where a is a halide anion or hexafluoroantimonate, and x+ is a quaternary ammonium cation, quarternary phosphonium or ternary sulfonium. Further, equipment suitable for implementing said method.. ... Arkema Inc

07/23/15 / #20150203436

Method for the production of 2-octyl acrylate by means of transesterification

The invention relates to the industrial production of 2-octyl acrylate of very high purity and with a high yield, using a continuous transesterification process. The method of the invention uses ethyl titanate in solution in 2-octanol or 2-octyl titanate as a transesterification catalyst, and employs a purification train comprising two distillation columns.. ... Arkema Inc

07/16/15 / #20150197614

Stability of polyurethane polyol blends containing halogenated olefin blowing agent

A polyol pre-mix composition includes a blowing agent having a halogenated hydroolefin, a polyol, a catalyst composition, and an antioxidant. The antioxidant may be, for example, a benzene diol or a benzene triol or other polyhydroxy-substituted aromatic compound, which is optionally substituted with one or more substituents such as alkyl groups. ... Arkema Inc

07/16/15 / #20150197591

Resins bearing cyclic carbonate groups and cross-linkable compositions of said resins having a low voc level

The invention concerns a resin bearing cyclic carbonate groups, said resin being an oligomer and/or polymer made from a mixture a) of monomers comprising a1) at least one monomer chosen from the (meth)acrylic esters from a c1 to c18 aliphatic alcohol, a2) at least one ethylenically unsaturated a2.1) or a2.2) monomer where a2.1) is a (meth)acrylic, vinyl or allylic bearer of at least one cyclic carbonate group and where a2.2) is a (meth)acrylic, vinyl or allylic bearer of at least one reactive precursor group of a cyclic carbonate group, a3) at least one ethylenically unsaturated monomer comprising, according to a3.1) at least one cycloaliphatic structure or one heterocyclic structure having 5 or 6 atoms and/or according to a3.2) at least one branched aliphatic structure comprising at least 4 and up to 18 carbon atoms with at least one quaternary carbon and, optionally, a4) at least one aromatic vinyl monomer, optionally, a5): a monomer bearing a carboxy group present in said oligomer or polymer. The invention also covers a method for preparing cross-linkable compositions comprising said resin with, as a cross-linking agent, a polyamine for applying coatings, a use in cross-linked polyurethanes without using isocyanate and the cross-linked polyurethane resulting from said resin of the invention.. ... Arkema Inc

07/16/15 / #20150197586

Novel elastomer material, and method for obtaining same

The invention relates to an elastomer material including flexible polymer chains containing crosslinking bridges having covalent bonds and crosslinking bridges having noncovalent bonds. The invention also relates to a method for preparing such elastomer material.. ... Arkema Inc

07/16/15 / #20150197487

Method for preparing diaminomaleonitrile

A method for manufacturing diaminomaleonitrile, wherein the method includes at least one step during which a cyanohydrin ketone with formula rr′cohcn, r and r′, which are the same or different, being a straight or branched alkyl chain having 1 to 5 carbon atoms, reacts in order to provide diaminomaleonitrile. The reaction step may be carried out in the presence of a catalyst.. ... Arkema Inc

07/16/15 / #20150197467

E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene

A production process for the production of e-1-chloro-3,3,3-trifluoropropene, the process including at least one stage during which 1,3,3,3-tetrachloropropene reacts with anhydrous hydrofluoric acid in the liquid phase, in the absence of a catalyst, with an hf/1,1,3,3-tetrachloropropene molar ratio between 3 and 20 inclusive, at a temperature between 50° c. And 150° c. ... Arkema Inc

07/02/15 / #20150184052

Ternary heat-transfer fluids comprising difluoromethane, pentafluoroethane and tetrafluoropropene

A ternary composition including: from 5 to 50% of difluoromethane; from 2 to 20% of pentafluoroethane; and from 30 to 90% of tetrafluoropropene. The tetrafluoropropene may be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. ... Arkema Inc

07/02/15 / #20150184051

Heat-transfer fluids and use thereof in countercurrent heat exchangers

A ternary composition including difluoromethane, 3,3,3-trifluoropropene and a hydrocarbon-derived compound containing at least two fluorine atoms and having a boiling point of between −30 and −18° c., which is selected from 1,1-difluoroethane, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This composition is particularly suitable for use as a heat-transfer fund in the presence of countercurrent heat exchangers.. ... Arkema Inc

07/02/15 / #20150183918

Method for synthesizing polyaryletherketones

The invention relates to a process for synthesizing polyaryl ether ketones with low contents of residual materials, whether they are residual monomers or solvents of the synthetic process.. . ... Arkema Inc

07/02/15 / #20150182949

Activated carbon with improved mechanical resistance, and the uses thereof, especially as a catalyst carrier

The present invention relates to active charcoals with improved mechanical properties. They can advantageously be used in the sweetening of petroleum fractions, as oxidation catalyst support in the conversion of mercaptans to disulphides, but also in any other type of reaction, such as, for example, for the oxidation of cyanide present in water or in the synthesis of glyphosate, and in processes for purification and/or separation by selective adsorption in a liquid phase and/or in a gas phase (decolouration of liquid foodstuffs, water treatment, air treatment, recovery of solvents, and the like).. ... Arkema Inc

06/25/15 / #20150175835

Optical reflectors, reflection films and sheets

Films, sheets or profiles useful as optical reflectors may be prepared by extruding a melt-processable acrylic resin composition comprised of acrylic polymer, white pigment and, optionally one or more additives such as impact modifiers, matting agents, uv stabilizers, antioxidants and processing additives onto a layer of abs, acrylic or other thermoplastic. Alternatively, a monolithic film or sheet or profile useful as an optical reflector is obtained by forming the acrylic resin composition using a melt-processing technique such as extrusion or injection molding without a substrate layer.. ... Arkema Inc

06/25/15 / #20150174868

Multilayer structures containing biopolymers

The invention relates to a multi-layer structure having at least one inner layer containing an alloy of a biopolymer and an acrylic polymer and at least one outer layer containing a thermoplastic or thermoset polar polymer matrix. The combination of outer polar layer and an inner biopolymer/acrylic layer provides improved properties, such as improved adhesion, and improved mechanical properties. ... Arkema Inc

06/18/15 / #the present invention relates to the use of thermoplastic starch in the manufacture of an adhesive and ultrathin waterproof-breathable film, said thermoplastic starch being provided in the form of an alloy with hydrophilic tpe comprising at least 10% by weight, preferably at least 20% by weight, preferably at least 30% by weight, preferably at least 40% by weight, preferably at least 50% by weight, of polyethylene glycol (peg), with regard to the weight of the tpe.

Arkema France

. . ... Arkema Inc

06/18/15 / #20150166736

Water-dispersible polyamide powder

A powder of polyamide particles, in which: said polyamide includes more than 50 mol % of amine ends among the total number of amine and acid ends of the polyamide; said particles include, on the surface thereof, primary amine groups neutralized by a phosphorous bronsted acid, such as phosphoric acid; and the d50 of the particles falls within the range of 100 nm to 50 μm, preferably 100 nm to 20 μm. A method for producing such a powder and to the production of aqueous dispersions including same.. ... Arkema Inc

06/18/15 / #20150165043

Peroxide dispersions

The viscosity of aqueous dispersions of normally solid organic peroxides may be advantageously lowered through the use of surfactants which are polyglyceryl esters of c6-c12 fatty acids. The reduction in viscosity facilitates milling the peroxides to reduce particle size and also provides dispersions of small particle size peroxides which may be readily poured or pumped.. ... Arkema Inc

06/04/15 / #20150152307

Low-temperature and average-temperature refrigeration

Binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, as a heat transfer fluid in compression, low-temperature and average temperature refrigeration systems, with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. Also, to a heat transfer method. ... Arkema Inc

06/04/15 / #20150152306

Heat transfer fluid replacing r-410a

A heat transfer method using ternary composition containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, as a heat transfer fluid in refrigeration systems, to replace the r-410a mixture.. . ... Arkema Inc

06/04/15 / #20150152280

Coating compositions for improved block resistance

Embodiments include coating compositions, methods of coating a substrate, and substrates having at least one surface coated according to the methods of the present disclosure. The aqueous, substantially volatile organic compound (voc)-free coating compositions includes an acrylic latex and a vinyl acetate-ethylene latex including from about 10 to about 90 weight percent of a vinyl acetate-ethylene polymer, based on total weight of acrylic polymer and vinyl acetate-ethylene polymer, having a tg from about −20 to about 20 degrees celsius; and from about 10 to about 90 weight percent of an acrylic polymer, based on the total weight of acrylic polymer and vinyl acetate-ethylene polymer, the acrylic polymer comprising, in polymerized form, at least one ethylenically unsaturated (meth)acrylic monomer and from about 0.01 to about 10 weight percent, based on total weight of the acrylic polymer, of an acetoacetate moiety containing monomer, where the acrylic polymer has a tg of from about −20 to about 20 degrees celsius.. ... Arkema Inc

06/04/15 / #20150152235

Hydrochlorofluoroolefin blowing agent compositions

The use of a composition as an agent for blowing a projected biocomponent polyurethane foam, said composition including 1-chloro-3,3,3-trifluoropropene and/or 2-chloro-3,3,3-trifluoropropene and at least one additional compound chosen from hydrochlorofluoroolefins, hydrofluoroolefins, hydrochloroolefins, hydrofluorocarbons, hydrochlorofluorocarbons, hydrocarbons, substituted or unsubstituted ethers, substituted or unsubstituted alcohols, substituted or unsubstituted aldehydes, substituted or unsubstituted ketones and substituted or unsubstituted esters, and said composition having a boiling point greater than or equal to 20° c. Also, a method for manufacturing polyurethane foam on the basis of the use above.. ... Arkema Inc

06/04/15 / #20150150263

Disinfectant compositions with hydrogen peroxide

Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 0.8% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as staphylococcus aureus at a fast killing rate.. ... Arkema Inc

06/04/15 / #20150150262

Disinfectant compositions with hydrogen peroxide

Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 15% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as staphylococcus aureus at a fast killing rate.. ... Arkema Inc

05/28/15 / #20150147551

Use of an alloy of thermoplastic starch and fpo in the manufacture of an adhesive ultrathin waterproof-breathable film

The present invention relates to the use of thermoplastic starch in the manufacture of an adhesive and ultrathin waterproof-breathable film, said thermoplastic starch being provided in the form of an alloy with at least one hydrophilic functionalized polyolefin obtained either by copolymerization or by grafting of a polyolefin backbone with an unsaturated monomer, said unsaturated monomer being grafted by pegs and/or forming a metal salt. This film can be used in a textile product in the medical field, hygiene, luggage, the clothing industry, the garment industry, domestic or household equipment, furniture, fitted carpets, the automobile industry, industry, in particular industrial filtration, agriculture and/or the construction industry.. ... Arkema Inc

05/28/15 / #20150147506

Composite material having a very low content of carbon-based nanofillers, process for the preparation thereof and uses thereof

A composite material containing a polymer composition and a very low concentration of carbon nanofillers, in particular carbon nanotubes, having improved mechanical properties. The method for producing said composite material and to the different uses thereof. ... Arkema Inc

05/07/15 / #20150126746

Salt of bicyclic aromatic anions for li-ion batteries

A method for obtaining salts of bicyclic imidazole compounds (v) having general structural formulae in which a represents a monovalent cation, x represents independently a carbon atom, an oxygen atom, a sulphur atom or a nitrogen atom. Also, the associated production method and to the use thereof, in particular as an electrolyte component for batteries.. ... Arkema Inc

05/07/15 / #20150126646

Thermoplastic composite material made from natural fibers

A method of producing a composite material, comprising an assembly of natural fibres, impregnated with an amorphous or semi-crystalline thermoplastic polymer, said method including: i) a step of impregnating said assembly with a precursor composition in the molten state and including: a) at least one prepolymer p(x)n of said thermoplastic polymer, having a molecular chain p having, at the ends of same, n reactive functions x, with n ranging from 1 to 3, in particular n being 1 or 2, and preferably 2 b) at least one chain extender y-a-y including reactive functions y with at least one of said functions x ii) a step of polymerisation by mass (poly)addition, in the molten state, of said prepolymer with said chain extender with: said thermoplastic polymer being the result of said polymerisation by mass polyaddition and said impregnation i) and polymerisation ii) taking place at a temperature lower than 250° c.. . ... Arkema Inc

04/30/15 / #the invention relates to the use of at least one compound of formula (1):

Arkema France

. . ... Arkema Inc

04/30/15 / #20150119521

Aqueous dispersions of polyurethane resins based on rosin

The invention relates to rosin-based polyurethane resins derived from hydroxylated fatty polyesters modified with rosin, where the polyesters are bio-based, the invention also relates to aqueous dispersions of these resins, and the use of these resins in aqueous coatings.. . ... Arkema Inc

04/30/15 / #20150118535

Battery based on organosulfur species

Metal-sulfur batteries, such as lithium-sulfur batteries, are prepared using one or more organosulfur species such as organic polysulfides and organic polythiolates as part of the liquid or gel electrolyte solution, as part of the cathode, and/or as part of a functionalized porous polymer providing an intermediate separator element.. . ... Arkema Inc

04/30/15 / #20150118430

Use of carbon-based nanofillers at a very low content for the uv stabilization of composite materials

The use of very low concentrations of carbon nanofillers selected from among carbon nanotubes, carbon nanofibres, graphene or a mixture of same in any proportions, in order to improve resistance to ageing, in particular protection against ultraviolet (uv) light, of a composite material based on a polymer matrix. A composite product comprising a composite material, the composite material stabilized with respect to uv light using a content of between 1 ppm and 0.1% by weight, of carbon-based nanofillers chosen from carbon nanotubes, carbon nanofibres, graphene or a mixture of these in all proportions, wherein the composite product is selected from yarns, films, tubes, fibres, and nonwovens.. ... Arkema Inc

04/23/15 / #20150111096

Salt of bicyclic aromatic anions for li-ion batteries

The invention relates to the salts of bicyclic imidazole compounds (iv) having general structural formulae in which a represents a monovalent cation, x represents independently a carbon atom, an oxygen atom, a sulphur atom or a nitrogen atom. The invention also relates to the associated production method and to the use thereof, in particular as an electrolyte component for batteries.. ... Arkema Inc

04/23/15 / #20150111014

Multilayer polymeric structure

The invention relates to multilayer polymer structures having at least three layers. These layers include a polar capstock layer other than an acrylic, an olefinic substrate layer, and a tie layer. ... Arkema Inc

04/16/15 / #20150105510

Thermoplastic layer for a cable, pipe, coating or analogous

A polyolefin graft polyamide composition incorporating lamellar nanofillers. Also, a tube, pipe or analogous formed from a multilayer at least one of the layers of which contains this composition. ... Arkema Inc

04/16/15 / #20150103513

Optical reflection films

Films useful as optical reflectors are prepared by coating a sheet of polyethylene terephthalate or other thermoplastic with acrylic polymer, white pigment, and optionally other additives such as impact modifiers, matting agents and uv stabilizers.. . ... Arkema Inc

04/16/15 / #20150101537

Hood for metal-oxide vapor coating glass containers

An apparatus for coating glass articles with a chemical compound includes a coating hood section defining an interior chamber having an inlet and an outlet, the outlet being positioned adjacent the glass articles. A blower is positioned in the interior chamber to carry air from the inlet towards the outlet. ... Arkema Inc

04/09/15 / #the invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation:

Arkema France

. . ... Arkema Inc

04/09/15 / #20150096312

Compositions based on 2,3,3,4,4,4-hexafluorobut-1-ene

A composition including 2,3,3,4,4,4-hexafluorobut-1-ene as a mixture with one or more hydrocarbon, hydrofluorocarbon, ether, hydrofluoroether or fluoroolefin compounds having a boiling point of less than or equal to 0° c. Also, the use of such a composition in heat transfer applications. ... Arkema Inc

04/02/15 / #20150094502

Process of fluorination in liquid phase

The present invention provides a process of fluorination in liquid phase in a solvent medium of a compound of formula (ii) cx1x2=czcx3x4x5, in which z represents h, cl or f, and each x1 represents independently hydrogen or chlorine, given that at least one of the x1 represents a chlorine.. . ... Arkema Inc

04/02/15 / #20150094432

Method for synthesising trifluoroethylene from chlorotrifluoroethylene

The present invention relates to the preparation of trifluoroethylene (vf3 or trfe) by hydrogenolysis of chlorotrifluoroethylene (ctfe) in the gaseous phase over a group viii metal catalyst deposited on a support. This method can be used to obtain vf3 in an economical manner in conditions which minimize the risk of explosion of this molecule. ... Arkema Inc

03/26/15 / #the invention relates to a liquid-liquid extraction process, comprising:

Arkema France

. . ... Arkema Inc

03/26/15 / #20150087861

Method for producing acrolein and/or acrylic acid from glycerol

The invention relates to the production of acrolein and/or acrylic acid from glycerol, and more particularly to a method for continuous production of a stream comprising acrolein by dehydration of glycerol, comprising cycles of reaction and regeneration of a dehydration catalyst.. . ... Arkema Inc

03/26/15 / #20150086792

Process for coating a glass substrate with an aqueous fluoropolymer coating

The invention relates to an process for coating a glass substrate with an environmentally friendly aqueous, fluoropolymer coating composition. The process involves applying a polyurethane primer to the glass substrate, and partially, but not completely crosslinking this primer coating. ... Arkema Inc

03/19/15 / #20150079403

Aqueous fluoropolymer glass coating

The invention relates to an aqueous fluoropolymer coating composition for direct application to glass without the need for pre-treatment of the glass surface. The coating composition can also be used with other non-porous and porous substrates. ... Arkema Inc

03/19/15 / #20150079378

Rotomolding processes for poly (aryl ketones) and other high temperature polymers

A method of manufacturing an article comprises rotomolding at least one polymer comprising a poly(aryl ketone), such as pekk, under conditions effective to produce a rotomolded article having an impact value of at least 35 in-lbs. A rotomolding method comprises heating the mold for a period of time after the internal air temperature of the mold reaches the highest melting point of the at least one polymer. ... Arkema Inc

03/12/15 / #20150073080

Latex binders useful in zero or low voc coating compositions

Latex binders useful for preparing zero or low voc coating compositions having excellent freeze-thaw stability, good tint strength and good scrub resistance when cured may be obtained using a polymerizable polyalkylene glycol monomer such as polyethylene glycol methacrylate in combination with one or both of an emulsifier or a polymerizable polyalkylene glycol monomer containing bulky hydrophobic groups substituted on an aromatic ring.. . ... Arkema Inc

03/05/15 / #a monofilament made from a polyamide composition including at least 70 wt. % of a polyamide resulting from the condensation of:

Arkema France

. . ... Arkema Inc

03/05/15 / #20150065679

Monomers bearing associative groups for the synthesis of supramolecular polycondensates

The present invention relates to the use of monomers bearing associative groups in order to manufacture a supramolecular polycondensate, to certain of these monomers, to a process for manufacturing a supramolecular polycondensate, to the polycondensate obtained, and also to an article or a composition incorporating same.. . ... Arkema Inc

03/05/15 / #20150065641

Tube connectors based on a polyamide composition

A tube connector made from a polyamide composition, the polyamide composition including at least one first polyamide a having an average number of carbon atoms per nitrogen atom ca and at least one second polyamide b having an average number of carbon atoms per nitrogen atom cb, wherein ca≦8.5 and cb≧7.5, and wherein ca<cb. The composition may include a third polyamide c having an average number of carbon atoms per nitrogen atom cc, wherein cb≦cc.. ... Arkema Inc

03/05/15 / #20150065634

Battery gasket based on a polyamide composition

A gasket for a battery, wherein the gasket is made from a polyamide composition including at least 70 wt. % of a polyamide x.y, wherein x and y represent respective residues from the condensation of an aliphatic diamine comprising 4 to 18 carbon atoms, and preferably 5 to 12 carbon atoms, with a (cyclo)aliphatic diacid including 10 to 18 carbon atoms, and wherein the polyamide composition further includes a nucleating agent.. ... Arkema Inc

02/26/15 / #20150052918

Compositions of 2,4,4,4-tetrafluorobut-1-ene and 1-methoxyheptafluoropropane

The invention relates to the use of a composition comprising 2,4,4,4-tetra-fluoro-but-1-ene and 1-methoxyheptafluoropropane as a heat transfer fluid. The invention also relates to associated units, methods and compositions.. ... Arkema Inc

02/19/15 / #20150051334

Polymer latex binders useful in zero or low voc coating compositions

Polymer latex binders useful for preparing coating compositions containing low levels of, or which are substantially free of, volatile organic compounds (vocs) such as volatile freeze-thaw additives are prepared by multistage emulsion polymerization, wherein one stage provides a copolymer having a relatively high glass transition temperature and containing an oxyalkylene-containing (meth)acrylate comonomer.. . ... Arkema Inc

02/05/15 / #the invention concerns a process for the aqueous suspension, micro-suspension, emulsion or micro-emulsion polymerization of at least one halogenated monomer, in particular chlorinated, for example vinyl chloride, by itself or with one or more other vinyl monomers, preferably less than 50% by weight of one or more other vinyl monomers, in which at least one shortstopper and at least one perhalogenate, acting as a whitening agent, are added.

Arkema France

. . ... Arkema Inc

02/05/15 / #20150038650

Crosslinked nanostructured cast sheets

Transparent and impact-resistant crosslinked acrylic composition consisting of a brittle matrix (i) having a glass transition temperature of greater than 0° c. And of elastomeric domains having a characteristic dimension of less than 100 nm consisting of macromolecular sequences (ii) having a flexible nature with a glass transition temperature of less than 0° c.. ... Arkema Inc

02/05/15 / #20150038603

Blowing agent compositions of hydrochlorofluoroolefins

The present invention relates to foam products made with blowing agent compositions comprising at least one hydrochlorofluoroolefin (hcfo) used in the preparation of foamable thermoplastic compositions. The hcfos of the present invention include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (hcfo-1233zd), particularly the trans-isomer, 2-chloro-3,3,3-trifluoropropene (hcfo-1233xf), dichloro-fluorinated propenes, and mixtures thereof. ... Arkema Inc

02/05/15 / #20150034156

Radiation curable adhesive composition for photovoltaic backsheets

The invention relates to a radiation curable adhesive system for use in bonding a high thermal deformation temperature layer to a uv opaque, pigmented or non-pigmented fluoropolymer film the radiation curable adhesive system uses an adhesive composition optimized for cure using long wavelength uv energy. The adhesive system may also be optimized for curing by led or e-beam radiation. ... Arkema Inc

01/29/15 / #20150031830

Multiphase emulsion polymers for aqueous coating compositions containing little or no organic solvents

A multiphase emulsion polymer for aqueous coating compositions containing little or no organic solvent includes at least one soft phase and at least one hard phase prepared by a multi-stage emulsion polymerization. The hard phase contains a hard phase polymer having a glass transition temperature in a range from i0 c to 100 c which is more than 50 c higher than that of the soft phase polymer. ... Arkema Inc

01/29/15 / #20150030971

Process for controlling the period characterizing the morphology obtained from a blend of block copolymers and of co(polymers) of one of the blocks

The present invention relates to a process for controlling the period characterizing the morphology obtained from a blend of block copolymers and of (co)polymers of one of the blocks on a surface employing a particular way of carrying out the synthesis of the blend of block copolymers and of (co)polymers of one of the blocks.. . ... Arkema Inc

01/29/15 / #20150030906

Aqueous polyvinylidene fluoride composition

The invention relates to a separator for non-aqueous-type electrochemical device that has been coated with an aqueous fluoropolymer coating. The fluoropolymer is preferably polyvinylidene fluoride (pvdf), and more preferably a copolymer of polyvinylidene fluoride. ... Arkema Inc

01/29/15 / #20150027146

Heat transfer compositions having improved miscibility with lubricating oil

A composition including 2,3,3,3-tetrafluoropropene and a lubricating oil including a polyalkylene glycol and a polyol ester, the polyol ester content in the lubricating oil being less than or equal to 25%. A method of lubricating a vapor compression circuit, the method including using a mixture including a polyalkylene glycol and a polyol ester as lubricating oil in the vapor compression circuit, in combination with a heat transfer fluid comprising 2,3,3,3-tetrafluoropropene, the content of polyol ester in the lubricating oil being less than or equal to 25%. ... Arkema Inc

01/22/15 / #20150024146

Melt in place binders for binding particulate fillers to substrates

The invention relates to the use of a melt-in-place acrylic binder that is applied to a substrate in the form of a powder, followed by a fusing together of the binder powder by heat or radiation. Particulate filler is present either on the substrate, mixed with the binder powder, or admixed into the binder powder prior to fusion. ... Arkema Inc

01/15/15 / #20150018479

Free radical coating composition with improved surface cure properties

A crosslinking monomer for a peroxide cure composition is disclosed. The crosslinking monomer is a dual functional monomer and has at least two allyl groups and at least one (meth)acrylate group. ... Arkema Inc

01/15/15 / #20150017551

Use of lithium salt mixtures as li-ion battery electrolytes

Lithium salt mixtures, for example a mixture including at least two lithium salts chosen from two of the three following groups of salts: x: lipf6, libf4, ch3cooli, ch3so3li, cf3so3li, cf3cooli, li2b12f12, libc4o8; r1—so2—nli—so2—r2, where r1 and r2 independently represent f, cf3, chf2, ch2f, c2hf4, c2h2f3, c2h3f2, c2f5, c3f7, c3h2f5, c3h4f3, c4f9, c4h2f7, c4h4f5, c5f11, c3f5ocf3, c2f4ocf3, c2h2f2ocf3 or cf2ocf3; or formula (i), where rf represents f, cf3, chf2, ch2f, c2hf4, c2h2f3, c2h3f2, c2f5, c3f7, c3h2f5, c3h4f3, c4f9, c4h2f7, c4h4f5, c5f11, c3f5ocf3, c2f4ocf3, c2h2f2ocf3 or cf2ocf3. Also, said salt mixtures dissolved in solvents, suitable for being used as electrolytes for li-ion batteries.. ... Arkema Inc

01/08/15 / #20150011738

Method of synthesis of azo compounds

A process is provided for synthesizing an azo compound, such as aibn, by oxidation of a hydrazo compound using hydrogen peroxide. This process comprises a step of adding to the reaction medium a particular reducing agent, such as hydrazine.. ... Arkema Inc

01/01/15 / #20150005539

Process for the removal of contaminant from a hydrochlorofluoroolefin by extractive distillation

A method for removing a contaminant from a hydrochlorofluoroolefin (such as trans-1,1,1-trifluoro-3-chloro-2-propene (1233zd(e))) includes extracting a chlorofluorocarbon (such as trichlorofluoromethane (r11)) from a mixture comprising the hydrochlorofluoroolefin and the chlorofluorocarbon using extractive distillation in the presence of an extractive solvent comprising a chlorinated compound to form a purified hydrochlorofluoroolefin. This separation method provides for removal of a contaminant, such as r11, from a hydrochlorofluoroolefin, such as 1232zd(e), which are not separable by conventional distillation methods. ... Arkema Inc

01/01/15 / #20150000379

Method of modeling permeation to essences of a multilayer polymer structure

A method of constructing a model of permeation to mixtures of solvents of a multilayer polymer structure with n monolayers and its associated computer program. For example, selecting several initial compositions of solvent mixture e1 to ey, carrying out a sorption measurement and a measurement of diffusion, discretizing said multilayer structure in space and time, estimating partial fluxes of each of the compounds of said composition of solvent mixture between each elementary slice of said multilayer structure, estimating on the one hand a maximal sorption ceiling of said downstream monolayer b and on the other hand the composition of solvent mixture at inlet of said downstream monolayer b, performing a mass balance from slice to slice as a function of time, adjusting the profile of concentrations, storing the concentration profiles and the partial fluxes obtained.. ... Arkema Inc








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