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Arkema Inc patents (2016 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


Long-life lithium-ion batteries

The invention relates to a battery comprising a cathode, an anode and electrolyte between said cathode and anode, in which: —the cathode comprises an oxide containing manganese as active substance; and —the electrolyte contains a lithium imidazolate of formula: (i) in which r, r1 and r2 independently of each other represent cn, f, cf3, chf2, ch2f, c2hf4, c2h2f3, c2h3f2, c2f5, c3f7, c3h2f5, c3h4f3, c4f9, c4h2f7, c4h4f5, c5f11, c3f5ocf3, c2f4ocf3, c2h2f2ocf3 or cf2ocf3 groups.. . ... Arkema Inc

2,3,3,3-tetrafluoropropene compositions having improved miscibility

The use of an alcoholic compound to improve the miscibility of ammonia with 2,3,3,3-tetrafluoropropene, as well as to compositions of ammonia, 2,3,3,3-tetrafluoropropene and an alcoholic compound, and the use thereof, in particular in heat-transfer applications. A composition including 2,3,3,3-tetrafluoropropene, ammonia and an alcoholic compound having a melting point less than or equal to 0° c.. ... Arkema Inc

Peba for direct adhesion to tpe

The invention relates to a copolymer having polyamide pa blocks and polyether pe blocks, in which pa is of diamine.diacid x.y type; x, the number of carbons of the diamine, is within the range from 6 to 14, and y, the number of carbons of the diacid, is within the range from 6 to 18. The invention also relates to the use of the said copolymer in a process of direct adhesion between two tpe materials for increasing the peel strength between these materials.. ... Arkema Inc

Purification of (meth)acrylic esters by membrane separation dehydration

The present invention relates to the production of (meth)acrylic esters, and more particularly the production of c4-c10 alkyl (meth)acrylates comprising the step of membrane separation dehydration of at least one stream generated during the purification of alkyl (meth)acrylate.. . ... Arkema Inc

Arkema France

. . ... Arkema Inc

Transparent polyamide-based composition comprising glass as filler

The use of at least one semi-crystalline polyamide in a glass-charged amorphous polyamide resin for producing a composition which is more transparent than the resin. Polyamide-based transparent composition manufactured according to the use of the semi-crystalline polyamide, including: from 5.0 to 40.0% by weight of semicrystalline polyamide, from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide, from 5.0 to 40.0%, preferably from 5.0 to 30.0%, by weight of glass filler, and optionally: from 0.0 to 5.0% by weight of peba, from 0.0 to 5.0% by weight of additives, with respect to the total weight of the composition.. ... Arkema Inc

Blowing agent composition of hydrochlorofluoroolefin and hydrofluoroolefin

A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (hcfo), preferably hfco-1234ze in combination with a hydrochlorofluoroolefin (hcfo) preferably one selected from hcfo-1233zd, hcfo-1223, hcfo-1233xf and mixtures thereof. ... Arkema Inc

Curable aqueous polyurethane dispersions made from renewable resources

A curable aqueous polyurethane dispersion is formed by reacting a polyol a) component with a polyisocyanate b) in excess to form a polyurethane pre-polymer which is neutralized and dispersed before chain extending with a chain extender c) to form the final polyurethane polymer aqueous dispersion. The polyol a) component comprises a1) at least one non-ionic polyol, a 2) at least one polyol bearing at least one ionic or potentially ionic group comprising an acid group or salt thereof and a3) at least one ethylenically unsaturated monoalcohol or polyol. ... Arkema Inc

Heat transfer fluid replacing r-134a

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 r-134a. 1. ... Arkema Inc

Method of manufacturing a fibrous material preimpregnated with thermoplastic polymer using an aqueous dispersion of polymer

A method of manufacturing a pre-impregnated fibrous material produced as a plurality of unidirectional parallel tapes, said method including the following steps: i) impregnation of the fibrous material while it is in the form of several parallel rovings, said impregnation step including: ia) immersion in a bath containing an aqueous dispersion of thermoplastic polymer, said immersion being followed by ib) drying, then ii) shaping by calendering, using at least one heated calender, into the form of a plurality of unidirectional parallel tapes using said calender including a plurality of calendering grooves according to the number of said tapes and with a pressure and/or separation between the rolls of said calender regulated by a control system.. . ... Arkema Inc

Method for preparing a fibrous material pre-impregnated with thermoplastic polymer with the aid of a supercritical gas

A method to produce a pre-impregnated fibrous material, in particular in ribbon form, including a fibrous reinforcement and thermoplastic polymer matrix, including a step of impregnating the fibrous material in the form of a single roving or several parallel rovings with the polymer in the molten state, the polymer in the molten state at the time of the impregnation containing a neutral gas in the supercritical state used as production aid by reducing viscosity in the molten state, preferably the gas being supercritical co2.. . ... Arkema Inc

Latex of spherical particles with improved thermal ageing properties

The present invention relates to the use of polymer particles in the form of spherical micelles constituted of block copolymers, as additives for aqueous or organic solutions. More particularly, the invention relates to the use of said spherical polymer particles for improving the ageing resistance of an aqueous or organic composition.. ... Arkema Inc

Odour-masked amine composition

The present invention relates to a composition comprising: a) at least one primary, secondary or tertiary amine and b) at least one agent which masks the odour of said at least one amine, said at least one odour-masking agent comprising at least one ether (b1), optionally, but preferably, at least one terpene and/or one terpenoid (b2) and optionally, but preferably, at least one oxime (b3). The invention also relates to the use of an odour-masking agent in order to mask the odour of at least one amine.. ... Arkema Inc

Arkema France

. . ... Arkema Inc

11/17/16 / #20160333221

Process that enables the creation of nanometric structures by self-assembly of block copolymers

The invention relates to a process that enables the creation of nanometric structures by self-assembly of block copolymers, at least one of the blocks of which is crystallizable or has at least one liquid crystal phase.. . ... Arkema Inc

11/17/16 / #20160333190

Powder composition of polyarylene ether ketone ketones allowing an excellent castability/coalescence balance suitable for laser sintering

A powder composition of polyarylene ether ketone ketones allowing an excellent castability/coalescence balance suitable for laser sintering. The present invention concerns a composition comprising between 99.6 and 99.99% by weight of at least one powder of at least one polyarylene ether ketone and 0.01 to 0.4% by weight of a hydrophilic flow agent. ... Arkema Inc

11/17/16 / #20160333173

Thermoplastic composition made of polypropylene and polyamide-grafted polyolefin

A composition of a blend of polypropylene, which may be present at between 10% and 90% by weight of the blend, and a polymer having a polyolefin core and polyamide grafts, optionally with an epdm and/or a functional additive, which may be present at between 10% and 90% by weight of the blend. Also, a multilayer structure including a plurality of adjacent layers, at least one of which is the aforementioned composition.. ... Arkema Inc

11/10/16 / #20160326694

Hydrogen peroxide compositions for the delignification of plant matter, and uses thereof

A system for the delignification of plant matter impregnated with a solution of organic acid selected from acetic acid, formic acid, propionic acid, butanoic acid, or a mixture of said acids, containing said plant matter and a hydrogen peroxide composition including hydrogen peroxide and at least one phosphorus-bearing additive, the phosphorus content in the composition being higher than, or equal to, 40 ppm, expressed in weight of elemental phosphorus in relation to the total weight of the composition, for the delignification of plant matter impregnated with a solution of organic acid, said plant matter being selected from straw and/or wood or a lignocellulosic paste originating from straw and/or wood, the mass ratio of the organic acid solution, expressed in weight of solution, to the plant matter, expressed in weight of dry matter, being between 1.5:1 and 10:1.. . ... Arkema Inc

11/10/16 / #20160326105

Catalyst for the synthesis of methyl mercaptan and process for producing methyl mercaptan from synthesis gas and hydrogen sulphide

The invention relates to a catalyst comprising an active component based on molybdenum and on potassium and a support based on hydroxyapatite, and also to a process for preparing said catalyst and a process for producing methyl mercaptan in a catalytic process by reaction of carbon monoxide, sulphur and/or hydrogen sulphide and hydrogen, comprising the use of said catalyst.. . ... Arkema Inc

11/10/16 / #20160324756

Use of polyamide powder in a cosmetic composition for nails

The use of polyamide powder particles in a cosmetic composition for the nails for improving the rate of drying, the mechanical strength, the matt appearance, the sliding appearance and/or the rough appearance of a layer of said composition on the nail, wherein: the volume-average diameter of the particles is within the range from 1 to 120 μm, the content of pa powder is within the range from 0.1 to 15% by weight, with regard to the total weight of the composition, the powder is added directly to said composition, the composition thus added is a varnish base, a makeup varnish for the nails, a finishing composition for the nails and/or a cosmetic care composition for the nails, said composition being pigmented or transparent.. . ... Arkema Inc

11/03/16 / #20160319158

Process for producing a block copolymer film on a substrate

The invention relates to a process for producing a film of self-assembled block copolymers on a substrate, said process consisting in carrying out a simultaneous deposition of block copolymer and of random copolymer by means of a solution containing a blend of block copolymer and of random copolymer of different chemical nature and which are immiscible, then in carrying out an annealing treatment allowing the promotion of the phase segregation inherent in the self-assembly of block copolymers.. . ... Arkema Inc

10/27/16 / #20160312156

Stable liquid compositions containing enzymes and peroxides

A stable, aqueous, liquid composition comprises both an enzyme and a peroxide or peroxide source. The composition contains a compatibilizer package having at least one compound chosen from enzyme stabilizers and peroxide stabilizers. ... Arkema Inc

10/27/16 / #20160312005

Fatty acid diamides comprising stearic hydroxyacids as organogelators

The invention is directed to a fatty acid diamide comprising in its structure specific hydroxycarboxylic acids, and to the use of this product as an organogelator or rheology agent, also known as a rheology additive, in particular in coating, glue or adhesive, molding, mastic, sealing or cosmetic compositions.. . ... Arkema Inc

10/20/16 / #20160304742

Solvent-free aqueous polyurethane dispersions and methods of producing solvent-free aqueous polyurethane dispersions

A solvent-free aqueous curable polyurethane dispersion is derived from at least one isocyanate-terminated ethylenically unsaturated polyurethane pre-polymer in a reactive diluent. The polyurethane pre-polymer comprises at least one (meth)acrylate functional group and at least one isocyanate functional group. ... Arkema Inc

10/20/16 / #20160303532

Shell and tube oxidation reactor with improved resistance to fouling

The present disclosure relates to a single shell open interstage reactor (“ssoi”). The ssoi comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. ... Arkema Inc

10/13/16 / #20160301106

Process for the preparation of lithium or sodium bis(fluorosulphonyl)imide

A process for the preparation of a bis(sulphonato)imide salt of formula: (iii) (so3−)—n−—(so3−) 3c+where c+ represents a monovalent cation, comprising the reaction of amidosulphuric acid of formula: (i) (oh)—so2—nh2 with a halosulphonic acid of formula: (ii) (oh)—so2—x where x represents a halogen atom, and comprising a reaction with a base which is a salt formed with the cation c. Also, a process for the preparation of bis(fluorosulphonyl)imide acid of formula: (v) f—(so2)—nh—(so2)—f and to a process for the preparation of lithium bis(fluorosulphonyl)imide salt of formula: (vii) f—(so2)—n−—(so2)—f li+.. ... Arkema Inc

10/13/16 / #20160298014

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

10/13/16 / #20160297990

Crosslinkable compositions of 2k polyurethanes with low voc content

The present invention relates to a polyol resin composition comprising an acrylic polyol resin obtained from a monomer mixture comprising a1) at least one hydroxylated ethylenically unsaturated monomer or a monomer that is a precursor of a hydroxylated unit and a2) at least one cycloaliphatic ethylenically unsaturated monomer, b) a diluent bearing at least two groups that are reactive with an isocyanate group, c) a urethanization reaction catalyst, optionally d) at least one inert diluent or monofunctional reagent with a boiling point below 250° c. And optionally at least one additive from among: uv stabilizer, antioxidant, pot life extender, conductivity additive, the composition having a voc content <300 g/l at a reference application viscosity of 450 mpa·s at 25° c.. ... Arkema Inc

10/06/16 / #20160289489

Aqueous dispersion of polymer made from multistructured particles for aqueous coatings having improved blocking and fingerprint resistance and hardness

The invention relates to a crosslinkable or non-crosslinkable aqueous dispersion of polymer, based on structured polymer particles, said particle comprising a core polymer phase, based on a polymer p1 with tg1 ranging from 60 to 120° c., a second polymer phase enveloping said core, based on a polymer p2 with a tg2 ranging from −60 to 40° c. And a third outer polymer phase (or shell based on a polymer p3, with a tg3 greater than tg2 not exceeding 120° c. ... Arkema Inc

09/29/16 / #the invention concerns a method for producing polyamide from an amino ester of formula nh2—(ch2)n—coor, in which r represents an alkyl group and n represents an integer ranging from 5 to 14, comprising:

Arkema France

. . ... Arkema Inc

09/29/16 / #20160280932

Aqueous dispersion of polymer made from multistructured particles for aqueous wall coatings resistant to dirt and wet abrasion

The invention relates to an aqueous dispersion of polymer, based on structured polymer particles, said particles comprising a core polymer phase, based on a polymer p1 with tg1 ranging from 60 to 120° c., a second polymer phase enveloping said core, based on a polymer p2 with a tg2 ranging from −60 to 40° c. And a third outer polymer phase (or shell) based on a polymer p3, with a tg3 ranging from tg2−5° c. ... Arkema Inc

09/29/16 / #20160280915

Impact-resistant thermoplastic composition

A composition including at least one polyamide; at least one copolymer including polyamide blocks and polyether blocks; and a single polyolefin, said polyolefin being a polyolefin functionalized by maleic anhydride units or by epoxy units. Also, objects manufactured from this composition and to the associated manufacturing process of the composition.. ... Arkema Inc

09/29/16 / #20160280531

Plunger tube connector for a container for packaging a product, particularly a chemical product

The plunger tube connector for a container for packaging a product, particularly a chemical product, comprises a body provided with a through-bore for the passage of the plunger tube, a gripping means mounted on the body and provided with an opening for the passage of said plunger tube, and a compression ring arranged axially at least in part between the body and the gripping means, and comprising a surface of contact with an outer surface of the plunger tube. The compression ring interacts with the body and/or the gripping means in order, when said body and said gripping means are brought closer to one another axially, to obtain a radial shift of said ring towards the inside.. ... Arkema Inc

09/22/16 / #20160272876

Fluid composition for stimulation in the field of oil or gas production

The present invention relates to filamentous polymer particles useful in oil, condensate or gas recovery from subterranean locations as hydraulic fracturing fluids, diverting fluids, fluids that make it possible to improve the distribution and the flow profiles of the fluids or products injected (referred to as conformance fluids) or permeability control fluids, sand control gravel pack placement fluids, acid fracturing fluids, and the like. These fluids are stimulation fluids injected in wells which serve also as producing wells for the hydrocarbons initially present in the subterranean formations.. ... Arkema Inc

09/22/16 / #20160272783

Additives made from fatty diamides for nucleophile-sensitive cross-linkable compositions

The present invention relates to a composition based on fatty acid diamide comprising: a) from 92% to 100% by weight of one or more fatty acid diamides, treated in situ by a neutralizing agent so as to reduce the residual amine content to a residual amine number, expressed in mg koh/g, which remains less than 0.5, b) optionally, up to 8% by weight of at least one amorphous or semicrystalline oligomer with a tg of greater than 60° c., with the sum of the % by weight a)+b) being equal to 100% by weight of the said diamide composition and with a) and b) being miscible as a blend.. . ... Arkema Inc

09/22/16 / #20160272781

Modification of polyamides

The present invention relates to an improved modified polyamide having increased molecular weight and substantially the same or marginally increased viscosity versus shear weight as the unmodified polyamide. A method for modifying polyamides to provide these improved properties also is disclosed wherein a polyamide having an initial molecular weight is contacted with at least one organic peroxide, at least one coagent and/or one free-radical trap to form an improved polyamide having an increased molecular weight and substantially the same viscosity versus shear rate. ... Arkema Inc

09/22/16 / #20160272570

Process for producing light (meth)acrylic esters

The subject matter of the present invention is an improvement in the continuous production of methyl (meth)acrylate or of ethyl (meth)acrylate by direct esterification of (meth)acrylic acid with methanol or ethanol, under reaction conditions for which the acid is in excess relative to the alcohol, in particular with an acid/alcohol molar ratio of between 1.0 and 4, and under a pressure ranging from atmospheric pressure to 5 bar. The process of the invention makes it possible to minimize the formation of ethyl ethoxypropionate during the esterification reaction, and results in an improvement in the material balance, simplification of the purification train for the desired ester, and optimization of the energy balance.. ... Arkema Inc

09/22/16 / #20160272561

Stabilization of 1-chloro-3,3,3-trifluoropropene

The use of a c3 to c6 alkene compound including a sole double bond, for limiting or preventing, for example, the isomerization of trans-1-chloro-3,3,3-trifluoropropene to cis-1-chloro-3,3,3-trifluoropropene. Also, a composition including 1-chloro-3,3,3-trifluoropropene and a c3 to c6 alkene compound including a sole double bond, and also to various uses of this composition.. ... Arkema Inc

09/22/16 / #20160271912

Fluorinated composition containing a uv absorber and use of same as a transparent protective layer

The present invention concerns compositions made from fluorinated polymers and the uses of same in order to produce transparent monolayer or multilayer films intended to protect various substrates. The polymer composition consists of at least one polymer made from vinylidene fluoride, at least one acrylic polymer and at least one uv absorber, the mass ratio of said fluorinated polymer being 60 and 90%, the mass ratio of said uv absorber being from 0.5 to 5% and the molecular weight of the latter is greater than 500 g/mol.. ... Arkema Inc

09/15/16 / #the invention relates to a urethane (meth)acrylate not comprising caprolactone, which is the product of reaction of a) a monoalcohol bearing from 1 to 5 (meth)acrylates, b) an allophanate-modified polyisocyanate, c) optionally, in the presence of a saturated polyol of functionality 2 to 3, d) optionally, in the presence of an unsaturated polyol with a hydroxyl functionality of 2 to 4, said polyol being c3 to c18, e) optionally, in the presence of a reactive diluent.

Arkema France

. . ... Arkema Inc

09/15/16 / #20160264704

Polymeric composition comprising and releasing an odoriferous active compound

The present invention relates to a composition comprising a polymeric elastomeric phase and an odoriferous active compound. In particular the present invention relates to a composition comprising a polymeric elastomeric phase and an odoriferous active compound and releasing said odoriferous active compound over a given period of time. ... Arkema Inc

09/08/16 / #20160257867

Compositions of hydrochlorofluoroolefins

The present invention relates to solvent/cleaner and heat transfer fluid compositions comprising at least one hydrochlorofluoroolefin (hcfo), 1-chloro-3,3,3-trifluoropropene (hcfo-1233zd), particularly the trans-isomer. The hcfo of the present invention can be used in combination with co-agents including, hydrofluorocarbons (hfcs), hydrofluoroolefins (hfos), hydrocarbons, ethers including hydrofluoroethers (hfes), esters, ketones, alcohols, 1,2-transdichloroethylene and mixtures thereof.. ... Arkema Inc

09/08/16 / #20160257646

Method for synthesising a mercaptan by adding hydrogen sulfide to an olefin

The invention relates to a method for synthesising a mercaptan from a terminal olefin and hydrogen sulphide which comprises the following consecutive steps: a—catalytic addition of hydrogen sulphide to a terminal olefin catalysed by an acid catalyst; b—separation of the products of the addition reaction into a light fraction including the surplus hydrogen sulphide and the olefins, and into a heavy fraction including at least one mercaptan and optionally one or more thioethers; c—a finishing step of passing the light fraction obtained in step b over an acid catalyst; then d—separation of the products of the finishing step into a fraction that is rich in hydrogen sulphide and into a fraction that is rich in additives; and finally e—recirculation of the fraction that is rich in hydrogen sulphide to the catalytic addition step a. The invention also relates to the facility for implementing said method.. ... Arkema Inc

09/08/16 / #20160257639

Esterification unit for producing crude methyl methacrylate, esterification process using said unit and plant comprising said unit

The invention relates to an esterification unit (150) and esterification process for producing crude methyl methacrylate (mma) from methacrylamide (mam), which enable particularly to improve the yield, meaning that the organics spent acids are low; and at the same time, providing crude mma with rather good quality, meaning that mma concentration in crude mma is rather high and preferably from 50 wt % to 80 wt %. According to the invention, the esterification unit comprises esterification reactors (1, . ... Arkema Inc

09/01/16 / #20160252283

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

09/01/16 / #20160251484

Copolymer with polyamide blocks and a polyether block

The invention relates to a copolymer comprising at least two distinct polyamide blocks and at least one polyether block, and a method for preparation of said copolymer comprising the following steps:—in a first step, the polyamide block pa1 is prepared by polycondensation of chosen monomers: amino acids, lactames or diamines and dicarboxylic acids, in the presence of an appropriate chain limiter;—then, in a second optional step, the polyamide pa1 block obtained is reacted with all or part of the polyether pe blocks, in the presence or absence of a catalyst;—in a third step, the polyamide pa2 block is prepared by polycondensation of the chosen isomers: amino acids, lactams or diamines and dicarboxylic acids, in the presence of an appropriate chain limiter;—in a fourth optional step, the polyamide pa2 block obtained is reacted with all or part of the polyether pe blocks, in the presence or absence of a catalyst;—in a fifth step, pa1 or the reaction medium from step 2 is reacted with pa2 or the reaction medium from step 4 and with pe or the remainder of pe not added in step 2 or 4.. . ... Arkema Inc

09/01/16 / #20160251299

Hydrolysis vessel used in a process for amidification of acetone cyanohydrin

The invention relates to an hydrolysis vessel (200) used during amidification step of acetone cyanohydrin (ach), in the industrial process for production of a methyl methacrylate (mma) or methacrylic acid (maa). The hydrolysis vessel (200) is used for hydrolyzing acetone cyanohydrine with sulfuric acid to produce a mixture comprising α-sulfatoisobutyramide (sibam). ... Arkema Inc

09/01/16 / #20160251297

Unit and process for purification of crude methyl methacrylate

The invention relates to a purification unit (200) which is able to separate crude mma from light and heavy impurities in order to obtain high quality of mma, suitable to produce optimal grade polymethylmethacrylate (pmma). The unit (200) comprises two distillation columns (210, 250) in series, fed with mixture to be distilled in their median part, in order to separate each column in two upper (213, 253) and lower (212, 252) parts, the first distillation column (210) being fed with crude prewashed mma, and the second distillation column (250) being fed with distilled liquid stream containing mma, separated from light impurities, issued from bottom of first distillation column (210). ... Arkema Inc

09/01/16 / #20160251289

Use of alkane sulfonic acid for preparing phenolic alcohol

The use of alkane sulphonic acid for preparing phenolic alcohol. The invention relates to a use of at least one alkane sulphonic acid for preparing phenolic alcohol by decomposing aryl hydroperoxide, and to a method for preparing phenolic alcohol comprising the following successive steps: bringing aryl hydroperoxide into reaction in the presence of at least one alkane sulphonic acid, neutralising the reaction medium, separating the ketone or the aldehyde, separating phenolic alcohol by distillation.. ... Arkema Inc

09/01/16 / #20160251282

Method for producing fluorinated compounds

The invention relates to a method for producing a fluorinated compound, comprising: the provision of a gaseous flow comprising hydrofluoric acid; the provision of at least one liquid flow of a chlorinated compound and the vapourisation thereof by mixing with said gaseous flow, the resulting mixture being a gaseous mixture; and the catalytic reaction of the chlorinated compound with hydrofluoric acid in a gaseous phase and the collection of a product flow. The invention also relates to a facility for carrying out said method.. ... Arkema Inc

09/01/16 / #20160251154

Container for storing and transporting heat-sensitive products

The present invention relates to a container provided with heat insulation means (8), characterized in that the heat insulation means (8) are removable and consist of a partition having a multilayered structure, or films, arranged between the wall of the tank (5) and at least the walls of two of the above-mentioned sides (2, 2′) as well as the upper surface (4) of the container (1). The invention further relates to the use of such heat insulation means (8) in a conventional container (1).. ... Arkema Inc

08/25/16 / #20160247953

Thermoplastic composition, in particular for photovoltaic modules

A thermoplastic composition including a mixture of three particular and different polyolefins, including one of a polyamide-grafted polyolefin having particular polyamide grafts (type and quantity), for example, a polyamide-grafted polymer having a polyolefin trunk containing a residue of at least one unsaturated monomer and a plurality of polyamide grafts. Also, a thermoplastic film and, more specifically, a film for encapsulating a photovoltaic module incorporating the polyamide-grafted polyolefin composition.. ... Arkema Inc

08/25/16 / #20160245964

Optical scatterer comprising a scattering portion formed from a foam comprising at least one fluoropolymer

The present invention relates to an optical scatterer having a scattering portion able to be passed through by the light flux emitted by a point light source, when said optical scatterer is mounted on said point light source. According to the invention, characteristically, said scattering portion is formed from a solid foam comprising at least one fluoropolymer.. ... Arkema Inc

08/25/16 / #20160245963

Optical diffusion blend materials for led lighting

The invention relates to blend materials useful in led lighting applications. The diffusing particle blend is a synergistic mixture of selected organic particles and selected inorganic particles of specific composition, loading, and a refractive index difference with the matrix polymer, that provide excellent light diffusion, high hiding properties and good light transmission. ... Arkema Inc

08/25/16 / #20160245954

Optical diffusion blend materials for led lighting

The invention relates to blend materials useful in led lighting applications. The diffusing particle blend is a synergistic mixture of selected organic particles and selected inorganic particles of specific composition, loading, and a refractive index difference with the matrix polymer, that provide excellent light diffusion, high hiding properties and good light transmission. ... Arkema Inc

08/25/16 / #20160244910

Pvdf textile article

The present invention relates to an architectural textile article or protective tarpaulin article based on polyvinylidene fluoride (pvdf), said article comprising a woven reinforcement and a coating. More specifically, the invention relates to a textile article comprising a layer of woven fabric made of pvdf homopolymer fibers, said layer having a first face and a second face, said layer being coated on at least one of its faces thereof with a coating comprising a copolymer of vinylidene fluoride (vdf) and of a fluorinated comonomer.. ... Arkema Inc

08/25/16 / #20160244652

Heat transfer method

A heat transfer method using ternary compositions containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, said compositions being especially interesting as a heat transfer fluid in compression refrigeration systems comprising exchangers operation in counterflow mode or in split flow mode with counterflow tendency. The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane as heat transfer fluid in compression-type refrigeration systems with exchangers operating in countercurrent mode or in crossed-current mode with countercurrent tendency.. ... Arkema Inc

08/18/16 / #20160237009

Method for producing 2,3,3,3-tetrafluoropropene

The invention concerns a method for producing 2,3,3,3-tetrafluoropropene comprising: a fluoridation reaction of a halopropane and/or halopropene into 2,3,3,3-tetrafluoropropene by means of hydrogen fluoride; the recovery of a gas stream resulting from the reaction; the cooling and partial condensation of the gas stream resulting from the reaction into a partially condensed stream; the separation of the partially condensed stream into a gas fraction and a liquid fraction; the compression of the gas fraction into a compressed gas fraction; the compression of the liquid fraction into a compressed liquid fraction; the distillation of the compressed gas fraction and compressed liquid fraction in order to provide a stream of 2,3,3,3-tetrafluoropropene, a stream of hydrochloric acid, and a stream of unreacted hydrogen fluoride. The invention also concerns an installation suitable for implementing said method.. ... Arkema Inc

08/11/16 / #20160233825

Nanodiamond coatings for solar cells

A nanodiamond coating for use on a solar cell, the coating including a nanodiamond material suspended in a liquid, wherein the nanodiamond material has a size range from about 1 nm to about 10 nm. Methods for improving the efficiency of a solar cell are provided, including, mixing a nanodiamond material with a liquid polymer or non-polymer solvent to form a nanodiamond-polymer suspension, forming a coating of the suspension on a top surface of a solar cell, and drying the coating such that a dried nanodiamond-polymer layer remains bonded to the solar cell. ... Arkema Inc

08/11/16 / #20160230078

Anti-corrosion formulations with storage stability

The present invention concerns the use of at least one compound a comprising at least one —sh or —s−, m+ group, at least one —c-g-c— chain, in which g represents an atom from column 16 of the periodic table, not comprising a carboxy group —c(═o)—oh or —c(═o)—o−, and of a molar mass of between 90 g·mol−1 and 1000 g·mol−1, as an additive in a formulation inhibiting corrosion in metals used in the oil industry, and more generally in any kind of industry involving the drilling of ores or fossil compounds, such as gas or oil, in order to improve both the anti-corrosion performance and the storage stability of same. The invention also concerns said corrosion-inhibiting formulations comprising at least one compound a.. ... Arkema Inc

08/04/16 / #the present invention relates to a fluorination process, comprising:

Arkema France

. . ... Arkema Inc

08/04/16 / #20160222272

Heat transfer fluids comprising difluoromethane, pentafluoroethane, tetrafluoropropene and optionally propane

A composition includes between 11 and 13 wt. % of difluoromethane; between 58 and 62 wt. ... Arkema Inc

08/04/16 / #20160221901

Process for the preparation of 2,3,3,3-tetrafluoropropene

The present invention provides a process for preparing 2,3,3,3-tetrafluoropropene from 1,1,1,2,3-pentachloropropane and/or 1,1,2,2,3-pentachloropropane, comprising the following steps: (a) catalytic reaction of 1,1,1,2,3-pentachloropropane and/or 1,1,2,2,3-pentachloropropane with hf into a reaction mixture comprising hcl, 2-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene, unreacted hf, and optionally 1,1,1,2,2-pentafluoropropane; (b) separating the reaction mixture into a first stream comprising hcl and 2,3,3,3-tetrafluoropropene and a second stream comprising hf, 2-chloro-3,3,3-trifluoropropene and optionally 1,1,1,2,2-pentafluoropropane; (c) catalytic reaction of the second stream into a reaction mixture comprising 2,3,3,3-tetrafluoropropene, hcl, unreacted 2-chloro-3,3,3-trifluoropropene, unreacted hf and optionally 1,1,1,2,2-pentafluoropropane and (d) feeding the reaction mixture of step (c) directly without separation to step (a).. . ... Arkema Inc

07/28/16 / #the invention relates to a composition comprising:

Arkema France

. . ... Arkema Inc

07/28/16 / #20160215197

Masterbatch for manufacturing a drilling fluid

An oil-based masterbatch in the form of granules containing carbon nanotubes. Also, a method for preparing an oil-based masterbatch in the form of granules containing carbon nanotubes. ... Arkema Inc

07/28/16 / #20160215137

Antistatic thermoplastic starch alloys

The invention relates to the use of an alloy of thermoplastic starch and a hydrophilic thermoplastic elastomer as an anti-static additive. The additive improves the anti-static properties of a polymer matrix.. ... Arkema Inc

07/28/16 / #20160215133

Method for preparing a crosslinked fluorinated polymer composition

The invention relates to a method for producing composition, said method involving—mixing a polyvinylidene fluoride with a copolymer of vinylidene fluoride and a comonomer, and with a crosslinking agent; crosslinking the obtained mixture. The invention further relates to the composition obtained by said method as well as the use of the composition for producing various items, such as pipes.”. ... Arkema Inc

07/28/16 / #20160215120

Heat stabilized polyvinylidene fluoride polymer composition

Fluoropolymers, specifically polyvinylidene fluoride (pvdf) polymers stabilized against color degradation due to high thermal exposure. The fluoropolymers are produced with free-radical initiators in the presence of surfactants containing acid end groups. ... Arkema Inc

07/21/16 / #20160207882

Method for preparing organic peroxides

A method for preparing peroxide, including a step of treating, in a reaction medium, a component having at least one tertiary alcohol grouping with a compound having at least one tertiary hydroperoxide function in the presence of a catalyst, said method being characterised in that the catalyst includes a sulphonic acid and a inorganic acid, the molar ratio between the sulphonic acid and the aforementioned component including at least one tertiary alcohol grouping ranges from 0.05 to 0.8, and the molar ratio between the inorganic acid and the aforementioned component including at least one tertiary alcohol grouping ranges from 0.05 to 0.8. Also, to the peroxide resulting directly from said preparation method.. ... Arkema Inc

07/21/16 / #20160207855

Method of fluorination in the gaseous phase

The present invention concerns a method of producing at least one compound of formula (ii): cf3—cx(z)n—chx(z)n in which x represents, independently, a hydrogen, fluorine or chlorine atom, z represents, independently, a hydrogen or fluorine atom, and n =0 or 1, from at least one compound of formula (i): cx(y)2—cx(y)m—chmxy in which x and y represent, independently, a hydrogen, fluorine or chlorine atom and m =0 or 1. The method comprises at least one step during which at least one compound of formula (i) reacts with hf in the gaseous phase in the presence of a fluorination catalyst in order to give at least one compound of formula (ii), characterised in that the catalyst is made from chromium oxyfluoride containing at least nickel as the co-metal and at least one rare earth metal.. ... Arkema Inc

07/14/16 / #20160200907

Fluoropolymer blend

The present invention relates to the preparation of a thermoplastic fluoropolymer blend composition exhibiting improved mechanical properties upon fabrication. The fluoropolymer blend composite on is produced by blending an emulsion latex of fluoropolymer (a) with an emulsion latex of fluorinated copolymer (b). ... Arkema Inc

07/07/16 / #20160197349

Additives for improving the ionic conductivity of lithium-ion battery electrodes

An electrode material, preferably a positive electrode material, for a lithium-ion battery, to the method of preparing same, and to a lithium-ion battery incorporating said electrode material. This composite electrode material includes: an electronically conductive additive, such as carbon; an active material that is an oxide, a phosphate, a fluorophosphate or a silicate of lithium; a polymer binder such as pvdf; and an organic salt corresponding to defined chemical formulae, for example lipdi, litdi, lipdci, lidcta, lifsi, litfsi, optionally as a mixture. ... Arkema Inc

07/07/16 / #20160194541

Heat-transfer compositions exhibiting improved miscibility with the lubricating oil

The use of 1,1,1,2-tetrafluoroethane for increasing the miscibility of 2,3,3,3-tetrafluoropropene with a lubricating oil, and in particular with a polyalkylene glycol oil. Further included are heat-transfer compositions and also equipment and processes using these compositions. ... Arkema Inc

07/07/16 / #20160194212

Installation and process for the preparation of hydrogen cyanide

Present invention relates to a process and an installation (100) for the preparation of hydrogen cyanide by the andrussow process, and more precisely for improving the conditions of mixing the reactant gases before feeding the andrussow type reactor (60), in order to improve safety, to avoid any risk of explosion and to produce hcn in safe and efficient manner. The installation is configured in such a manner that oxygen is pre-mixed with air with a ratio comprised between 20.95% and 32.5% by volume, preferably between 25% and 30.5% by volume; methane containing gas and ammonia are simultaneously added in the pre-mixture of oxygen-enriched air in such a manner that the volumic ratio of methane to ammonia is comprised between 1.35 and 1.02 depending on the content of oxygen into air; said obtained reactant gases mixture having a temperature comprised between 80° c. ... Arkema Inc

06/16/16 / #the invention relates to a fatty diamide comprising or consisting of a reaction product obtained from:

Arkema France

. . ... Arkema Inc

06/16/16 / #the invention relates to a fatty amide, which is based on:

Arkema France

. . ... Arkema Inc

06/16/16 / #a method for controlling the synthesis of a block copolymer containing at least two blocks, with at least one nonpolar block and at least one polar block, said method making it possible in particular to control the ratio between the blocks and the molecular weight of each of the blocks, said copolymer being a block copolymer intended to be used as a mask in a method of nanolithography by direct self-assembly (dsa), said control being achieved by semicontinuous anionic polymerization in an aprotic nonpolar medium and comprising the following steps:

Arkema France

. . ... Arkema Inc

06/16/16 / #20160168515

Manganese carboxylates for peroxygen activation

The efficacy of peroxy compounds such as hydrogen peroxide in bleaching compositions and the like may be enhanced by the presence of manganese carboxylates containing branched chain carboxylate and/or tartrate groups. The invention relates to the activation of peroxy compounds using particular types of manganese carboxylates so as to render such compounds more effective in bleaching stains from substrate surfaces and other such applications.. ... Arkema Inc

06/09/16 / #20160163412

Dielectric or heat-transfer fluid compositions and uses of same

A composition including: (a) from 30 to 70% by weight of a mixture of benzyltoluene and dibenzyltoluene, and (b) from 70 to 30% by weight of at least one compound chosen from the c4-c8 aromatic compounds enclosing two benzene rings condensed or bonded to each other by a bond or by a spacer group other than —ch2-, the oligomers of same and the mixtures of same, excluding phenylxylylethane. Also, the use of this composition, with or without phenylxylylethane, depending on the case, as a dielectric and/or heat-transfer fluid, in particular in use conditions at very low temperatures, such as temperatures lower than −40° c., or indeed lower than −60° c. ... Arkema Inc

06/09/16 / #20160159725

Method for continuous production of light acrylates by esterification of a raw ester-grade acrylic acid

The present invention relates to methods by which the thermal dissociation of michael adducts present in a stream of crude acrylic acid, called “crude ester grade”, and the esterification reaction of acrylic acid present in the stream of crude acrylic acid, or generated in situ by thermal dissociation, with a light alcohol, are carried out simultaneously.. . ... Arkema Inc

06/02/16 / #20160156055

Process for preparing an ion-exchange composite material comprising a specific polymer matrix and a filler consisting of ion-exchange particles

The invention relates to a process for preparing a composite material comprising a fluorinated polymeric matrix and a filler consisting in ion exchange inorganic particles comprising a step for in situ synthesis of said particles within the polymeric matrix, said matrix comprising at least one first copolymer comprising at least two types of fluorinated recurrent units, a type of which bears at least one pendant maleic anhydride group.. . ... Arkema Inc

06/02/16 / #20160152829

Polyamide-grafted polyolefin nanostructured thermoplastic composition

The present invention relates to a composition comprising at least two grafted copolymers having a polyolefin basic polymer chain and polyamide grafts, the polyamide grafts being 5 wt % and 35 wt % of the composition bonded to the first and second copolymer as well as a third component selected among certain polyamides, polyethylenes or polypropylenes or a mixture thereof. The invention also relates to a multilayer structure comprising a plurality of adjacent layers, at least one of which consists of the aforementioned composition.. ... Arkema Inc

06/02/16 / #20160152787

Blowing agent composition of hydrochlorofluoroolefin and hydrofluoroolefin

A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (hcfo), preferably hfco-1234yf in combination with a hydrochlorofluoroolefin (hcfo) preferably one selected from hcfo-1233zd, hcfo-1223, hcfo-1233xf and mixtures thereof. ... Arkema Inc

06/02/16 / #20160152782

Method for the surface crosslinking of polymer particles

The invention concerns a method for the surface crosslinking of a polymer, in particle form, having one or a plurality of labile hydrogen functions, comprising a step of implementing a crosslinking agent comprising at least two functions likely to react with the labile hydrogen functions of the polymer, the crosslinking method being carried out at a temperature lower than the melting point of the polymer. The invention also concerns a powder particle and the uses of same.. ... Arkema Inc

06/02/16 / #20160152751

Use of 2-octyl acrylate polymer as a binding agent in a coating composition

The present invention relates to the use of a polymer from the polymerization of 2-octyl acrylate of renewable origin and optionally at least one other monomer, as a binding agent in or for the production of a coating composition.. . ... Arkema Inc

06/02/16 / #20160152536

Method for separating organofluorine compounds using membrane

A method of separating a composition containing at least one organofluorine compound from at least one inorganic compound by contacts the composition with a semipermeable membrane. Other methods separate a organofluorine compound from a composition containing at least one other organofluorine compound or chlorocarbon. ... Arkema Inc

06/02/16 / #20160152535

Process for the manufacture of 2-chloro-3,3,3-trifluoropropene by gas phase fluorination of pentachloropropane

The present invention provides a process of catalytic fluorination in gas phase of product 1,1,1,2,3-pentachloropropane or/and 1,1,2,2,3-pentachloropropane into product 2-chloro-3,3,3-trifluoropropene in presence of a catalyst and oxygen.. . ... Arkema Inc

06/02/16 / #20160152484

Reactor for preparing hydrogen cyanide by the andrussow process, equipment comprising said reactor and process using such an equipment

The present invention relates to a reactor (201) for preparing hydrogen cyanide by the andrussow process, to an equipment (200) comprising said reactor and to a process for preparing hydrogen cyanide by the andrussow process. The reactor (201) comprising at least one gas inlet (i) for reactant gases mixture, a catalyst (203), a porous support for the catalyst (204), a porous sub support (205, 206) and at least one outlet (p8) for the reaction products. ... Arkema Inc

05/26/16 / #20160145175

Process for the manufacture of 2,3,3,3-tetrafluoropropene by gas phase fluorination of pentachloropropane

The present invention provides a process of catalytic fluorination in gas phase of product 1,1,1,2,3-pentachloropropane or/and 1,1,2,2,3-pentachloropropane into product 2,3,3,3-tetrafluoropropene in presence of a catalyst.. . ... Arkema Inc

05/26/16 / #20160144327

Caprolactam-based fatty amide as hydrogelling additive

The present invention relates to a caprolactam-based fatty amide additive useful as a hydrogelator for aqueous compositions.. . ... Arkema Inc

05/19/16 / #20160137590

Thermal conversion vessel used in a process for amidification of acetone cyanohydrin

The invention relates to a thermal conversion vessel (200) used during amidification step of acetone cyanohydrin (ach), in the industrial process for production of a methyl methacrylate (mma) or methacrylic acid (maa). The thermal conversion vessel (200) is used for converting an hydrolysis mixture of α-hydroxyisobutyramide (hibam), α-sulfatoisobutyramide (sibam), 2-methacrylamide (macryde) and methacrylique acid (maa), into a mixture of 2-methacrylamide (macryde). ... Arkema Inc

05/19/16 / #20160136606

Caprolactam-based fatty amide as gelling additive

The present invention relates to a caprolactam-based fatty amide additive having an amine or salified amine ending useful as a hydrogelator for aqueous compositions.. . ... Arkema Inc

05/19/16 / #20160136601

Thixotropic anhydrous shear thinning peroxide dispersions

Provided are dispersions which comprise more than about up to 55 percent by weight or more of an organic peroxide which is normally solid in an anhydrous liquid phase such as dibutyl maleate or dioctyl adipate, with about 5% by weight or more fumed silica to provide a thixotropic, storage stable organic peroxide paste. Addition of about 5 weight % or more of fumed silica was found to result in the formation of a shear thinning anhydrous dispersion of organic peroxide which was storage stable.. ... Arkema Inc

05/12/16 / #20160133988

Waterborne fluoropolymer composition

This invention relates to a waterborne fluoropolymer composition useful for the fabrication of li-ion-battery (lib) electrodes. The fluoropolymer composition contains an organic carbonate compound, which is more environmentally friendly than other fugitive adhesion promoters currently used in waterborne fluoropolymer binders. ... Arkema Inc

05/12/16 / #20160130751

Method for treating chemical pulps by treatment with ozone in the presence of magnesium ions

This invention relates to a method for treating chemical paper pulp comprising a step of treating the pulp with ozone followed by a step of alkaline extraction, in which alkaline extraction takes place in the presence of magnesium ions (mg2+).. . ... Arkema Inc

05/12/16 / #20160130419

Phenolic polysulphides having an improved odour

The present invention concerns a composition comprising at least 50% by weight of at least one poly(phenyl sulfide) and from a few ppm to 2% by weight relative to the total volume of the composition of at least one odour-masking agent comprising at least one compound chosen from alcohols, esters, aldehydes and ketones. The invention also concerns the use of an odour-masking agent for masking the odour of a poly(phenyl sulfide), in addition to the products obtained by using the poly(phenyl sulfide) composition having a masked odour.. ... Arkema Inc

05/12/16 / #20160130416

Stabilized polyurethane polyol blends containing halogenated olefin blowing agent

The present invention relates to imidazole and/or its derivative as polyurethane or polyisocyanurate foam catalyst in the presence of low global warming potential (gwp) halogenated olefinic blowing agents, such as the hydrochlorofluoroolefin (hcfo) hcf0-1233zd. More particularly, the present invention relates to catalyst compositions comprising imidazole and/or its derivative. ... Arkema Inc

05/12/16 / #20160130200

Method for separating and recovering 2,3,3,3-tetrafluoropropene and hydrofluoric acid

The present invention relates to a method for separating a composition containing 2,3,3,3-tetrafluoropropene and hydrofluoric acid, and for recovering the thus-separated 2,3,3,3-tetrafluoropropene and hydrofluoric acid. The invention also relates to a method for manufacturing and purifying 2,3,3,3-tetrafluoropropene using a hydrofluorination reaction of the saturated or unsaturated compound having three carbon atoms and including at least one chlorine atom in the presence of a fluorination catalyst.. ... Arkema Inc

05/05/16 / #the invention relates to a monofunctional or multifunctional acrylated or methacrylated urethane oligomer where said urethane bond is obtained without use of isocyanate and by the carbonate-amine reaction between a cyclic carbonate and a monoamine or polyamine, with subsequently the conversion of the hydroxyls in the β position with respect to the urethane bond into ester-acids by reaction with a cyclic anhydride, which reaction is followed by the conversion of said acid functional groups into acrylated or methacrylated end groups by reaction with a polyepoxide compound in the presence of acrylic or methacrylic acid.

Arkema France

. . ... Arkema Inc

05/05/16 / #20160122643

Method of inhibiting polymerization and fouling in acrylic acid and acrylate processes

The method of inhibiting the polymerization of a mono-ethylenically unsaturated carboxylic acid, anhydride, ester or neutralized or partially neutralized salt, e.g., an acrylic acid or ester, in an aqueous solution and in the presence of oxygen, the method comprising the step of mixing with the aqueous solution an inhibitor comprising (i) at least 50 ppm of an n-oxyl compound, e.g., 4-hydroxy-tempo, and (ii) a manganese ion, the n-oxyl compound and manganese ion present in a n-oxyl compound to manganese ion weight ratio of 50:1 to less than 100:1 based on the mono-ethylenically unsaturated carboxylic acid, anhydride, ester or salt.. . ... Arkema Inc

05/05/16 / #20160122609

Ternary compositions for high-capacity refrigeration

Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions of between 15 and 50 wt. ... Arkema Inc

05/05/16 / #20160122540

Composition made from polyamide mxd.10

The invention concerns a composition comprising a first polyamide, a second polyamide, different from the first polyamide, and 0.1 to 5% by weight of carbonaceous nanofillers, in which: a) the first polyamide comprises a unit derived from the condensation of meta-xylylene diamine or from a mixture of meta-xylylene diamine and para-xylylene diamine with sebacic acid, said first polyamide having a melting temperature tf1; and b) the second polyamide has a melting temperature tf2 higher than or equal to tf1−40° c. The invention also relates to a method for producing said composition and the use thereof for producing various items.. ... Arkema Inc

05/05/16 / #20160122527

Method for the thermal treatment of poly-arylene ether ketone ketone powders suitable for laser sintering

The invention relates to a process for the heat treatment of poly(arylene ether ketone ketone) powder suitable for laser sintering, and also to the powders resulting from this process.. . ... Arkema Inc

05/05/16 / #20160122495

Blowing agent composition of hydrochlorofluoroolefin

A blowing agent for thermosetting foams is disclosed. The blowing agent is predominately the trans isomer of the hydrochlorofluoroolefin (hcfo) hfco-1233zd alone or in combination with a hydrofluoroolefin (hfo), hydrofluorocarbon (hfc), hydrochlorofluoroolefin (hcfo), a hydrocarbon. ... Arkema Inc

05/05/16 / #20160121249

Block products incorporating small particle thermoplastic binders and methods of making same

A block product comprising a thermoplastic binder having an average particle size of less than 20 micrometers fused with active particles to form a generally coherent porous structure. In some cases, the average particle size of the binder is less than 12 micrometers. ... Arkema Inc

04/28/16 / #20160115827

Heat transfer process

The use of a refrigerant in organic rankine cycle systems including at least one hydrofluoroolefin, having at least four carbon atoms represented by the formula (i) r1ch═chr2 in which r1 and r2 independently represent alkyl groups having from 1 to 6 carbon atoms, substituted with at least one fluorine atom, optionally with at least one chlorine atom.. . ... Arkema Inc

04/28/16 / #20160115427

Composition used to remove labels

The invention relates to the use of a composition for removing a label or labels from a labelled item, said composition comprising: between 1 and 3 wt. % of at least one organic or mineral base; between 2 and 10 wt. ... Arkema Inc

04/28/16 / #20160115362

Refrigerants containing (e)-1,1,1,4,4,4-hexafluorobut-2-ene

A composition including (e)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofluorocarbon or fluoroolefin compound having a boiling point less than or equal to −12° c., and also to the use of this composition as a heat transfer fluid. A process for reducing the environmental impact of heat-transfer equipment including a vapor compression circuit containing an initial heat-transfer fluid, said process comprising a step replacing the initial heat-transfer fluid in the vapor compression circuit with a final heat-transfer fluid, the final heat-transfer fluid having a gwp which is lower than the initial heat-transfer fluid, wherein the final heat-transfer fluid is the above composition.. ... Arkema Inc

04/28/16 / #20160115361

Stable 2,3,3,3-tetrafluoropropene composition

A stable composition (cs) including at least x wt.- % 2,3,3,3-tetrafluoropropene (99.8 ÿ x <100), at most y wt.- % unsaturated compound(s) (ia) (0<y ÿ 0.2) selected from among 3,3,3-trifluoropropene (hfo-1243zf) and the positional isomers of 2,3,3,3-tetrafluoropropene, such as 1,3,3,3-tetrafluoropropene (isomers z and e) and 1,1,2,3-tetrafluoropropene, and, optionally, at most 500 ppm of 3,3,3-trifluoropropyne and/or at most 200 ppm 1,1,1,2,3-pentafluoropropene (hfo-1225ye).. . ... Arkema Inc

04/28/16 / #20160115314

Composition based on poly(arylene ether ketone) having improved properties

The present invention relates to a composition based on poly(ether ether ketone) (peek) comprising poly(ether ketone ketone) (pekk), characterized in that the poly(ether ketone ketone) (pekk) comprises a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 85%, limits included, and preferably between 55 and 70%, the said composition comprising between 1 and 40%, limits included, preferably between 5 and 40% and more preferably still between 10 and 30% by weight of pekk, with respect to the total weight of the composition.. . ... Arkema Inc

04/28/16 / #20160115104

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

04/07/16 / #20160095282

Fluorinated film

The present invention relates to a fluorinated composition and a fluorinated film having properties that make it suitable for use outside, especially in the agricultural sector. The film according to the invention is a single-layer polymer film comprising a polyvinylidene fluoride (pvdf) matrix and at least one impact modifier having a polyorganosiloxane core and at least one thermoplastic shell, in which the weight content of impact modifier varies between 2.5% and less than 40%. ... Arkema Inc

03/31/16 / #20160090519

Stable formulated systems with chloro-3,3,3-trifluoropropene

The present invention relates to formulated refrigerant systems of 1-chloro-3,3,3-trifluoropropene (r1233zd) that are sufficiently thermally and chemically stable such that they can be effectively used sans additional stabilizers. The formulations of the present invention are particularly useful compositions for refrigeration, heat transfer and foam blowing.. ... Arkema Inc

03/31/16 / #20160090462

Blowing agent composition of hydrochlorofluoroolefin and hydrofluoroolefin

A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (hcfo), preferably hfco-1234ze in combination with a hydrochlorofluoroolefin (hcfo) preferably one selected from hcfo-1233zd, hcfo-1223, hcfo-1233xf and mixtures thereof. ... Arkema Inc

03/31/16 / #20160090434

A liquid (meth) acrylic syrup it's method of polymerization, use and molded article obtained thereof

The present invention relates to a liquid (meth)acrylic syrup, its method of polymerization and article obtained thereof. In particular the present invention deals with a liquid (meth)acrylic syrup comprising an initiation system for polymerization at low temperature. ... Arkema Inc

03/31/16 / #20160090349

Multifunctional acrylated ether-ester products, process for preparing same and related crosslinkable compositions

The present invention relates to novel multifunctional acrylic monomers which are acrylic ether-ester products based on a mixture of multifunctional acrylic products derived from the reaction of acrylic acid in deficit with a multifunctional polyol, to a preparation process for the same, and to crosslinkable compositions based on these products.. . ... Arkema Inc

03/24/16 / #20160086742

Aqueous polyvinylidene fluoride composition

The invention relates to an aqueous fluoropolymer, and preferably polyvinylidene fluoride (pvdf), composition for manufacturing electrodes for use in non-aqueous-type electrochemical devices, such as batteries and electric double layer capacitors. The composition contains aqueous pvdf binder, and one or more powdery electrode-forming materials. ... Arkema Inc

03/24/16 / #20160083573

Transparent and antistatic pmma composition

A transparent antistatic composition based on polymethyl methacrylate (pmma), including: 55% to 99.9% by weight of pmma, and 0.1% to 45% by weight of at least one polyamide (pa) block-containing and polyether (pe) block-containing copolymer (peba) including polyethylene glycol (peg), with respect to the total composition weight, said copolymer including in the range 50% to 80% by weight of peg with respect to the total weight of copolymer. Also, the use of a composition of this type for the manufacture of at least a portion of the following items: an industrial part, an automobile part, a safety accessory, sign, luminous strip, signalling and advertizing panel, display, etching, furniture, shop fitting, decoration, contact ball, dental prosthesis, ophthalmological implant, membrane for hemodialysis, optic fibers, artwork, sculpture, camera lenses, disposable camera lenses, printing support, in particular a support for direct printing with uv inks for pictures, photographs, window glass, panoramic roof.. ... Arkema Inc

03/10/16 / #the present invention relates to a composition including, by weight, the total being 100%: 50 to 99% of a curable resin and of a curing agent in a molar ratio in the range of 1/5 to 5/1, and 1 to 50% of a mixture: of a polyamide which includes at least one monomer resulting from the condensation of a diacid and of a diamine of formula (1) where:

Arkema France

. . ... Arkema Inc

03/10/16 / #the invention relates to an adhesive composition comprising

Arkema France

. . ... Arkema Inc

03/10/16 / #20160071852

Ferroelectric memory device

The invention relates to a ferroelectric memory device comprising at least one layer comprising a ferroelectric polymer, and at least two electrodes either side thereof, the ferroelectric polymer being of general formula p(vdf-x-y), wherein vdf is vinylidene fluoride motifs, x is trifluoroethylene or tetrafluoroethylene motifs, and y is motifs from a third monomer, the molar proportion of y motifs in the polymer being less than or equal to 6.5%.. . ... Arkema Inc

03/10/16 / #20160068626

Multilayer structure comprising a layer of supramolecular material and method for the production thereof

The invention relates to a multilayer structure comprising at least one layer of supramolecular material and one layer of rigid material, to a method for producing such a structure by casting a composition comprising a precursor of the supramolecular material, and to the uses of the structures produced, especially for applications where a dampening of impacts, vibrations and/or sound waves is desired, for example for producing locomotion vehicles such as automotive, rail, nautical, aeronautical or aerospace vehicles, or for the construction industry.. . ... Arkema Inc

03/10/16 / #20160067768

Use of amine blends for foundry shaped cores and casting metals

The present invention relates to an improved process for preparing foundry shapes by the cold box process, a process for making cores and moulds and a process for casting metals, carrying out as curing catalyst system a blend comprising at least two tertiary amines.. . ... Arkema Inc

02/25/16 / #20160053105

Nanostructured thermoplastic polyamide-grafted polyolefin composition

A composition including at least two grafted copolymers, having a polyolefin trunk and polyamide grafts, the polyamide grafts being 15% to 25% by weight of the composition. Also, a multilayered structure including a plurality of adjacent layers, at least one of which has the above composition. ... Arkema Inc

02/25/16 / #20160052853

Plate-type reactor with in-situ injection

A chemical reactor including: a plurality of heat exchange plates which between them define reaction compartments, in which reactor each heat exchange plate includes two walls between them defining at least one heat exchange space, the respective walls being fixed together by joining regions, and the reactor also comprises at least one injection device for injecting substance into the reaction compartments, said substance-injection device passing through the heat-exchange plates in respective joining regions thereof. Also, a chemical reaction process that can be carried out in this reactor.. ... Arkema Inc

02/18/16 / #20160046786

Master mixture composition including a peroxide

Invention relates to a transparent master mixture that includes an ethylene copolymer ethylene monomer having a polar function (a) and a peroxide (b), characterized in that said composition includes, by weight, from 5 to 30% of (b); from 70 to 95% of (a); and in that the copolymer (a) includes from 20 to 45 wt % of ethylene monomer having a polar function. The invention also relates to a method for producing a master mixture composition including an organic peroxide. ... Arkema Inc

02/18/16 / #20160046548

Composition comprising hf and 3,3,3-trifluoropropene

An azeotropic or quasi-azeotropic composition including hydrogen fluoride, 3,3,3-trifluoropropene and one or more (hydro)halogen-carbon compounds including between 1 and 3 carbon atoms. Also, a preferred azeotropic or quasi-azeotropic composition including hydrogen fluoride, 3,3,3-trifluoropropene, and one or more compounds selected from among 1,1,1,2,2-pentafluoropropane, 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene, 3,3,3-trifluoro-2-chloropropene, e-3,3,3-trifluoro-l-chloropropene, trifluoropropyne, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropene, 1,1,1,2,3-pentafluoropropene and 2-chloro, 1,1,1,2-tetrafluoropropane.. ... Arkema Inc

02/18/16 / #20160046102

Multilayer polymer structures

The invention relates to a multi-layer polymer structure having a polyolefin-based layer, an acrylic-based or other polar polymer layer, and a tie-layer between and adjacent to the polyolefin and polar polymer-based layers. Each layer could contain multiple sub-layers. ... Arkema Inc

02/11/16 / #20160043247

Nitrogen-containing transparent conductive oxide cap layer composition

A nitrogen-containing tco (transparent conductive oxide) cap composition or layer that may be used as a capping over a tco layer (such as doped zinc oxide) to provide enhanced thermal, chemical and scratch resistant properties. It may also be used to improve the surface smoothness of the resultant stack. ... Arkema Inc

02/04/16 / #20160032165

3,3,3-trifluoropropene composition

A composition including a polyol ester (poe) or pve lubricant and a refrigerant including 3,3,3-trifluoropropene. The refrigerant may also include 2,3,3,3-tetrafluoropropene and trans-1,3,3,3-tetrafluoropropene. ... Arkema Inc

02/04/16 / #20160031773

Composition comprising hf and 1,3,3,3-tetrafluoropropene

An azeotropic or quasi-azeotropic composition including hydrogen fluoride, 1,3,3,3-tetrafluoropropene and one or more (hydro)halogen-carbon compounds including between 1 and 3 carbon atoms. Also, a preferred azeotropic or quasi-azeotropic composition comprising hydrogen fluoride, 1,3,3,3-tetrafluoropropene, and one or more compounds selected from among 1,1,1,2,2-pentafluoropropane, 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 3,3,3-trifluoro-2-chloropropene, e-3,3,3-trifluoro-1-chloropropene, trifluoropropyne, 1,1,1,3,3-pentafluoropropane, 1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropene, 1,1,1,2,3-pentafluoropropene and 2-chloro, 1,1,1,2-tetrafluoropropane.. ... Arkema Inc

01/28/16 / #20160025394

Heat transfer fluid

Compositions which are based on tetrafluoropropene and more particularly relates to compositions including 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which can be used as a heat transfer fluid. The compositions may include 60% to 79% by weight of 2,3,3,3-tetrafluoropropene and 21% to 40% by weight of a compound selected from difluoroethane and difluoromethane.. ... Arkema Inc

01/28/16 / #20160024363

Ternary compositions for low-capacity refrigeration

Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. ... Arkema Inc

01/28/16 / #20160023985

Process for producing 2-propylheptyl acrylate by transesterification

The invention relates to the industrial production of highly pure 2-propylheptyl acrylate with a high yield according to a process by transesterification, preferably in semi-continuous mode. The process according to the invention uses ethyl titanate in solution in 2-propylheptanol or 2-propylheptyl titanate as tranesterification catalyst, and implements a purification sequence comprising a single distillation column and a film evaporator.. ... Arkema Inc

01/28/16 / #20160023974

Composition comprising hf and e-3,3,3-trifluoro-1-chloropropene

An azeotropic or quasi-azeotropic composition including hydrogen fluoride, e-3,3,3-trifluoro-1-chloropropene and optionally one or more (hydro)halogen-carbon compounds including between 1 and 3 carbon atoms. Also, a preferred azeotropic or quasi-azeotropic composition including hydrogen fluoride, e-3,3,3-trifluoro-1-chloropropene, and optionally one or more compounds selected from among 1,1,1,2,2-pentafluoropropane, 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 3,3,3-trifluoro-2-chloropropene, 1,3,3,3-tetrafluoropropene, trifluoropropyne, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropene, 1,1,1,2,3-pentafluoropropene and 2-chloro,1,1,1,2-tetrafluoropropane.. ... Arkema Inc

01/28/16 / #20160023176

Composition comprising hf and 3,3,3-trifluoro-2-chloropropene

An azeotropic or quasi-azeotropic composition including hydrogen fluoride, 3,3,3-trifluoro-2-chloropropene and one or more (hydro)halogen-carbon compounds including between 1 and 3 carbon atoms. Also an azeotropic or quasi-azeotropic composition including hydrogen fluoride, 3,3,3-trifluoro-2-chloropropene, and one or more compounds selected from among 1,3,3,3-tetrafluoropropene, 1,1,1,2,2-pentafluoropropane, 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, e-3,3,3-trifluoro-1-chloropropene, trifluoropropyne, 1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropene, 1,1,1,2,3-pentafluoropropene and 2-chloro,1,1,1,2-1 tetrafluoropropane.. ... Arkema Inc

01/28/16 / #20160023034

Methods for purifying and stabilizing hydrofluoroolefins and hydrochlorofluoroolefins

Hydrofluoroolefins and hydrochlorofluoroolefins contaminated with acid and/or iron compounds are purified and stabilized by contacting the haloolefin with a solid adsorbent such as alumina and then combining the purified haloolefin with one or more stabilizers such as an epoxide. The purified, stabilized haloolefins thus obtained are useful in a wide variety of end-use applications, including, for example, as refrigerants, propellants, foaming agents, fire suppression or extinguishing agents, and solvents.. ... Arkema Inc

01/21/16 / #liquid (meth)acrylic syrup for impregnating a fibrous substrate, method of impregnating a fibrous substrate, composite material obtained following polymerisation of the pre-impregnated substrate

Arkema France

. . ... Arkema Inc

01/21/16 / #20160017138

Liquid (meth)acrylic syrup for impregnating a fibrous substrate and method for the production thereof, method for impregnating a fibrous substrate, and composite material produced after polymerisation of said pre-impregnated substrate

The invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate. The invention especially relates to a viscous liquid syrup mainly containing methacrylic or acrylic components. ... Arkema Inc

01/21/16 / #20160017136

Polyvinylidene fluoride composition

The invention relates to a composition comprising: a homopolymer of vinylidene fluoride (vdf) and at least one other fluorinated monomer copolymerizable with vdf, the weight proportion of said copolymer in the composition being between 10 to 35%; and a plasticisizer, the weight proportion of said plasticizer in the composition being between 1 to 5%. The invention also relates to a method for producing said composition and the use thereof for producing various items.. ... Arkema Inc

01/21/16 / #20160017135

Methods for crosslinking polymer compositions in the presence of atmospheric oxygen

A process for crosslinking an elastomer composition in the presence of an organic peroxide formulation is disclosed. The organic peroxide formulation may comprise additional compounds chosen from bis-, tri- and higher poly-maleimides, bis-, tri- and higher poly-citraconimides, peroxide-crosslinkable silicone elastomers, p-phenylenediamine based antiozonants, sulfur containing organic compounds which are accelerators for the sulfur curing (crosslinking) of polymers which are curable/crosslinkable by sulfur, and polysulfide polymers. ... Arkema Inc

01/21/16 / #20160016894

Combined synthesis of a nitrile-ester/acid and of a diester/diacid

A method for the combined synthesis of a mono-unsaturated nitrile-ester(acid) and of a bi-functional carbonyl compound, wherein it includes a step including the cross metathesis mc1 of an unsaturated fatty acid/ester compound with an unsaturated nitrile compound, in which mc1 is performed with partial conversion such as to obtain and recover, separately, at least the following products: a mono-unsaturated nitrile-ester/acid and a symmetrical compound, diester or diacid respectively including a double bond located in the middle of the molecular chain of compound, and subsequently a step including the oxidation cleavage cp2 of the double bond of compound, such as to form a single type of carbonyl compound having formula r2-(ch2)n-cor′, in which r′ is h or oh, depending on the operating conditions selected for the oxidation cleavage cp2. Also, the production of monomers for the polymer industry.. ... Arkema Inc

01/21/16 / #20160016868

Method of obtaining a combination of z and e stereoisomers of hydrofluoroolefins

Disclosed are the combinations containing z and e stereoisomers of hydrofluoroolefins where the more toxic isomer is less than about 30 % weight of the combination (vs the sum of z+e), to minimize the toxicity impact in the applications they will be used for such as cooling and heat fluids, foams blowing agents or solvents. Also disclosed are means to obtain combinations containing z and e stereoisomers of hydrofluoroolefins.. ... Arkema Inc

01/14/16 / #20160009985

Promoters for peroxides in aqueous treatment fluids

The addition of at least one promoter selected from the group consisting of thiosulfate salts, sulfite salts, bisulfite salts, erythorbate salts, isoascorbate salts, and combinations thereof to an aqueous treatment fluid containing a viscosifying polymer and a peroxide helps to promote the activity of the peroxide as a breaker, thus facilitating a reduction in viscosity of the aqueous treatment fluid at lower temperatures than are possible in the absence of the promoter. The promoted aqueous treatment fluid is useful as a fracture fluid to fracture subterranean formations in oil and gas recovery.. ... Arkema Inc

01/14/16 / #20160009973

Compositions of chloro-trifluoropropene and hexafluorobutene

Provided are compositions, preferably azeotrope or azeotrope-like compositions including 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (hcfo-1233zd), and uses thereof of the compositions. The composition may be a heat transfer composition. ... Arkema Inc

01/14/16 / #20160009910

Thermoplastic composite

The invention relates to multi-layer thermoplastic composites, and in particular composites having fluoropolymer in the outer layer and a thermoplastic substrate layer. The fluoropolymer outer layer may either be a layer comprising a majority, and preferably 100 percent fluoropolymer, or may be a blend of a thermoplastic matrix with fluoropolymer at a level of from 5 to 60 weight percent, based on the total weight of all polymers. ... Arkema Inc

01/14/16 / #20160009878

Liquid (meth)acrylic syrup for impregnating a fibrous substrate, method for impregnating a fibrous substrate, and composite material produced after polymerisation of said pre-impregnated substrate

The invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate. The invention especially relates to a viscous liquid syrup mainly containing methacrylic or acrylic components. ... Arkema Inc

01/14/16 / #20160009840

Fluoropolymers

The invention relates to novel linear, semi-crystalline fluoropolymers containing 0.5 to 25 mole percent of at least one vinyl ester monomer unit. At least 40 mole percent of the vinyl ester monomer units are present in the copolymer as single monomer units (not diads or triads or greater) between two fluoromonomer units. ... Arkema Inc

01/14/16 / #20160009673

Unsaturated fatty acid ester-based compositions useful as plastic additives

Compositions useful as plastic additives may be prepared from renewable resources such as vegetable oils by functionalizing an unsaturated fatty acid ester with epoxy, acyloxy, and optionally alkoxy groups.. . ... Arkema Inc

01/14/16 / #20160009555

Composition comprising hf and 2,3,3,3-tetrafluoropropene

An azeotropic or quasi-azeotropic composition including hydrogen fluoride, 2,3,3,3-tetrafluoropropene and one or more (hydro)halogen-carbon compounds including between 1 and 3 carbon atoms. Also a azeotropic or quasi-azeotropic composition including hydrogen fluoride, 2,3,3,3-tetrafluoropropene, and one or more organic compounds selected from among 1,1,1,2,2-pentafluoropropane, e-1,3,3,3-tetrafluoropropene, z-1,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 3,3,3-trifluoro-2-chloropropene, e-3,3,3-trifluoro-1-chloropropene, trifluoropropyne, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropene, z-1,1,1,2,3-pentafluoropropene and 2-chloro,1,1,1,2-tetrafluoropropane.. ... Arkema Inc

01/14/16 / #20160009060

Multilayer composite

The invention relates to multilayer composites having improved weathering properties without reducing flame retardation properties. The composites have a fluoropolymer layer over a thermoplastic layer. ... Arkema Inc

01/14/16 / #20160008772

Long chain branched fluoropolymer membranes

The invention relates to membranes formed from long chain branched fluoropolymers, and especially long chain branched homopolymers and copolymers of polyvinylidene fluoride such as kynar resins. The novel membranes retain all the advantages of a fluoropolymer membrane (excellent chemical resistance especially to strong acids and oxidizing agents, and good mechanical strength), and additionally offer improved permeability, improved strain hardening, and even better resistance to caustic attacks. ... Arkema Inc

01/07/16 / #the present invention relates to photobioreactors and more particularly to the use of a transparent composition based on at least one methacrylic polymer for constructing installations for the culture of photosensitive organisms. this composition can be in the form of films, plates, profiled elements or cylinders such as tubes.

Arkema France

. . ... Arkema Inc

01/07/16 / #20160002434

Halogenated polymer composite composition, its manufacturing process and its use

The present invention relates to a halogenated polymer composite composition that encapsulates a mineral filler. In particular the present invention relates to a polymer composite composition comprising at least one halogen containing polymer and at least one mineral filler, characterized that the halogen containing polymer and the mineral filler are both in form of a dispersion in aqueous phase during the mixing of the halogen containing polymer and the mineral filler. ... Arkema Inc

01/07/16 / #20160002151

Metathesis process comprising the extraction of the ethylene formed by means of a membrane

A process for the metathesis of two α-olefin compounds, wherein it comprises the use of at least one membrane for extracting ethylene from the reaction medium, said membrane being permeable to gases and impermeable to liquids. A process for the metathesis of two α-olefin compounds, carried out in a reaction device including two zones separated by said at least one membrane: a first zone, fed with reactants and catalyst, in which the liquid-phase metathesis reaction is initiated and the liquid reaction medium is circulated in contact with the wall constituted by the membrane, and a second zone, fed with a gaseous stream that is inert with respect to the membrane and the constituents of the reaction medium of the first zone.. ... Arkema Inc

01/07/16 / #20160002147

Method of synthesising amino acid by metathesis, hydrolysis, then hydrogenation

A method of synthesising an amino acid from an unsaturated fatty compound i that includes at least the following steps: cross-metathesis with a short unsaturated compound ii, one of compounds i or ii comprising a nitrile function and the other of these compounds ii or i an ester function, so as to obtain and recover at least one monounsaturated nitrile ester neu; hydrolysis of the neu in unsaturated acid nitrile nau; hydrogenation of the nau to saturated amino acid aa; and then purification of the aa, if applicable, in particular by crystallisation. Also, a polymer obtained by polymerisation using the amino acid synthesised according to the method.. ... Arkema Inc








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