Patents Assigned to Arkema France
  • Publication number: 20200369808
    Abstract: The present invention relates to the field of copolymers which are water-soluble or water-dispersible at neutral pH or near-neutral pH, that is to say between 5.5 and 9.5, comprising at least one random copolymer comprising methacrylic acid, butyl acrylate, styrene and a monomer chosen from styrenesulfonic acid or salts thereof, vinylbenzoic acid or salts thereof, 2-acrylamido-2-methanesulfonic acid or salts thereof, N-vinylpyrrolidone, alone or in combination.
    Type: Application
    Filed: November 23, 2018
    Publication date: November 26, 2020
    Applicant: Arkema France
    Inventors: Anne-Laure Brocas, Sylvie Cazaumayou, Sylvain Bourrigaud, Guillaume Decrevoisier
  • Patent number: 10844521
    Abstract: A process for producing a highly carbonaceous fibre or set of fibres including combining a structured precursor comprising a hydrocellulose fibre or a set of fibres, and an unstructured precursor, including lignin or a lignin derivative in the form of a solution having a viscosity less than 15,000 mPa·s?1 at the temperature at which the combination step takes place, in order to obtain a hydrocellulose fibre or set of fibres coated with the lignin or lignin derivative, wherein the process further includes a step of thermal and dimensional stabilization of the hydrocellulose fibre or set of fibres covered with the lignin in order to obtain a hydrocellulose fibre or set of fibres covered with a deposit of lignin or lignin derivative, and a carbonization step of the hydrocellulose fibre or set of fibres coated with a lignin deposit in order to obtain a highly carbonaceous fibre or set of fibres.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 24, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Alexander Korzhenko, Tatiana Kolomiets
  • Patent number: 10844221
    Abstract: Provided is a composition including (A) 65% to 95% of a polyamide mixture, (B) 7% to 30% of at least one impact modifier or of at least one core-shell entity or of a mixture thereof, and (C) 0 to 5% of at least one additive chosen from stabilizers, dyes, plasticizers, fibers, fillers, processing aids or a mixture thereof. The composition may be used, for example, to produce an article by extruding, injection molding, molding or thermoforming.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: November 24, 2020
    Assignee: Arkema France
    Inventors: Mathieu Sabard, Regis Cipriani, Karine Loyen, Helena Cheminet, René-Paul Eustache
  • Publication number: 20200365353
    Abstract: The use of a gas as a medium for electrically isolating and/or extinguishing electric arcs, the gas including 1-chloro-2,3,3,3-tetrafluoropropene. Also, an electrical device including a sealed chamber containing electrical components and a gas for electrically isolating and/or extinguishing electric arcs, in which the gas includes 1-chloro-2,3,3,3-tetrafluoropropene. The gas may be only 1-chloro-2,3,3,3-tetrafluoropropene.
    Type: Application
    Filed: March 14, 2019
    Publication date: November 19, 2020
    Applicant: Arkema France
    Inventor: Wissam RACHED
  • Publication number: 20200365958
    Abstract: A device for cooling and/or heating a battery of an electric or hybrid motor vehicle, including a battery box provided with: at least one envelope of a composition including between 0 and 80 wt. %, in relation to the total weight of the composition, of reinforcing fibres, between 0 and 20 wt. %, in relation to the total weight, of at least one thermoconductive component, between 0 and 20 wt. %, in relation to the total weight, of at least one impact modifier, and between 0 and 20 wt. %, in relation to the total weight of the composition, of additives, the remainder being a matrix predominantly including at least one polyamide and optionally at least one flameproofing agent; an inlet for a heat-transfer fluid; and an outlet for a heat-transfer fluid, the box defining a battery cooling and/or heating space.
    Type: Application
    Filed: November 20, 2018
    Publication date: November 19, 2020
    Applicant: Arkema France
    Inventors: Wissam RACHED, Nicolas DUFAURE
  • Publication number: 20200362100
    Abstract: Provided is a compound which may be obtained by esterification condensation of components as described herein. The compound may be used as a collector for ore enrichment (flotation), as a corrosion inhibitor, as a viscosity enhancer, emulsifier or stabilizer that is useful for the oil and gas industry, as a clay modifier, as an adhesion promoter, as an antiagglomerant additive, as an additive in haircare products, as a fabric softener, as an antistatic agent in polymers, as a bitumen emulsion additive, as a detergency cationic agent, as a fertilizer additive, as an antiagglomerant for hydrates, as a lubrication or adhesion-promoting additive, for example.
    Type: Application
    Filed: August 8, 2018
    Publication date: November 19, 2020
    Applicant: Arkema France
    Inventors: Eric Jorda, Alain Baloche, Gilles Barreto, Jean-Phillippe Gillet
  • Publication number: 20200361862
    Abstract: The invention relates to the compounds of formula (I), in which R1 and R2 represent a linear, branched or cyclic, saturated or unsaturated hydrocarbon group, comprising 1 to 6 carbon atoms, wherein the sum of the carbon atoms of the groups R1 and R2 is from 2 to 7; A represents a chain of one or a plurality of units of ethylene oxide, propylene oxide, butylene oxide and mixtures thereof; and n is an integer between 1 and 100 inclusive. The invention also relates to mineral or organic salts thereof; the use of the compounds of formula (I) and/or of one of the salts thereof as a surfactant, a wetting agent, a detergent, an emulsifying agent, a dispersant, a corrosion inhibitor, and the like; and to compositions comprising at least one compound of formula (I) and/or of one of the salts thereof.
    Type: Application
    Filed: November 8, 2018
    Publication date: November 19, 2020
    Applicant: Arkema France
    Inventors: Jean-Philippe Gillet, Juan Antonio Gonzalez Leon, Carl Bouret
  • Patent number: 10836117
    Abstract: The present invention relates to a method for reducing the crystallization temperature an the melting temperature of a polyamide powder resulting from the polymerization of at least one predominant monomer, in which the reduction in the crystallization temperature is greater than the reduction in the melting temperature, said method comprising a step of polymerization of said at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as said at least one predominant monomer, said at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and said at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of said monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of said total blend, preferably from 1% to 10% by weight of said total blend.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 17, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Gregory Filou, Cyrille Mathieu, Holger Senff
  • Patent number: 10828696
    Abstract: Provided is a catalyst suitable for curing a composite resin composition that includes comprising a blend of at least two tertiary amines selected from dimethylethylamine (DMEA), diethylmethylamine (DEMA), dimethylisopropylamine (DMIPA), and dimethyl-n-propylamine (DMPA), where each of the at least two tertiary amines is present in the blend in an amount of not less than 10% by weight and not more than 90% by weight.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 10, 2020
    Assignee: Arkema France
    Inventors: Bruno Van Hemelryck, Pierre-Henri Vacelet, Jean-Claude Roze, Jens Muller, Diether Koch
  • Patent number: 10829637
    Abstract: The present invention relates to a composition that comprises a mixture of polymers, which comprises: a first polymer comprising polyphenylene sulphide, making up 55 wt % to 95 wt % of the mixture; a thermoplastic modifier, making up 5 wt % to 45 wt % of the mixture; optionally one or more functional additives, making up at most 10 wt % of the mixture, preferably at most 5 wt % of the mixture, characterised in that the thermoplastic modifier includes a second polymer which comprises a polyolefin backbone containing a group of at least one unsaturated monomer (X) and a plurality of polyamide grafts. The invention also relates to a multilayer structure including a plurality of adjacent layers, at least one of which consists of the aforementioned composition.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: November 10, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Fumi Ariura, Mathieu Sabard, Dominique Jousset
  • Publication number: 20200350560
    Abstract: A formulation is described in the form of a solid-liquid dispersion for the manufacture of a cathode, comprising a liquid-phase solvent, a sulfur-carbon composite in the form of particles with a median diameter D50 of less than 50 ?m, and less than 10% by number of the particles of the dispersion are particles of sulfur in elemental form.
    Type: Application
    Filed: January 16, 2019
    Publication date: November 5, 2020
    Applicant: Arkema France
    Inventors: Alexander Korzhenko, Patrick Delprat, Christophe Vincendeau
  • Publication number: 20200346930
    Abstract: An agglomerated solid material comprising loose carbon nanotubes and that is free from organic compounds is described, as well as the method of preparation thereof, and uses thereof, where the agglomerated solid material consists of a continuous network of carbon nanotubes comprising aggregates of carbon nanotubes with an average size d50 under 5 ?m, in a proportion below 60% by area, determined by image analysis by electron microscopy and has an apparent density between 0.01 g/cm3 and 2 g/cm3.
    Type: Application
    Filed: January 10, 2019
    Publication date: November 5, 2020
    Applicant: Arkema France
    Inventors: Patrick Delprat, Alexander Korzhenko, Christophe Vincendeau, Daniel Cochard
  • Publication number: 20200347014
    Abstract: The subject of the present invention is a process for producing a sulfonic acid which is sparingly corrosive, or even non-corrosive, with respect to stainless steels, said process comprising at least the steps of adding at least one nitrite to a sulfonic acid, curing, with stirring, with sparging of the mixture and recovering the low-corrosion sulfonic acid obtained. The invention also relates to the low-corrosion sulfonic acid obtained according to the process of the invention, and also to the use thereof as low-corrosion sulfonic acid.
    Type: Application
    Filed: August 30, 2018
    Publication date: November 5, 2020
    Applicant: ARKEMA FRANCE
    Inventors: Jean-Alex LAFFITTE, Bernard MONGUILLON
  • Patent number: 10822235
    Abstract: A hydrogen peroxide purification process, including supplying a starting stream containing hydrogen peroxide at a content above 50 wt %, as well as at least one stabilizer; a single step of purification of the starting stream, the single step having purification by reverse osmosis; collecting a purified stream at the end of said single purification step, in which purification by reverse osmosis includes: passing the starting stream over a first membrane; collecting a permeate and a retentate from the first membrane; passing the permeate from the first membrane over a second membrane; collecting a permeate and a retentate from the second membrane, the purified stream having the permeate from the second membrane.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 3, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Philippe Zydowicz, Benoit Requieme, Michel Jauffret
  • Publication number: 20200339855
    Abstract: A composition including a lubricant based on polyol esters (POEs) or PVE and a refrigerant F including from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze) and from 1 to 99% by weight of 1,1,1,2-tetrafluoroethane. Also, the use of the composition including a lubricant and refrigerant in refrigeration, air conditioning and heat pumps.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Applicant: ARKEMA FRANCE
    Inventors: Wissam RACHED, Beatrice BOUSSAND
  • Publication number: 20200339496
    Abstract: The invention relates to a compound of following formula (I): a preparation process, uses thereof and compositions containing the same, wherein R1 and R2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R1 and R2 ranges from 2 to 7, and where R1 and R2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R1, R2 and the carbon atom to which R1 and R2 are attached has a degree of branching equal to 0, 1 or 2.
    Type: Application
    Filed: November 8, 2018
    Publication date: October 29, 2020
    Applicant: Arkema France
    Inventors: Jean-Philippe Gillet, Thierry Beillon
  • Patent number: 10815337
    Abstract: The present invention relates to a compound of formula (I): in which: the R1 and R2 groups, which may be identical or different, are, independently of one another, a saturated or unsaturated, linear, branched or cyclic hydrocarbon group having from 1 to 15 carbon atoms, preferably from 1 to 10 carbon atoms; the R3 and R4 groups, which may be identical or different, are selected, independently of one another, from a hydrogen atom, a methyl group or an ethyl group; the R, R6 and R7 groups, which may be identical or different, are selected, independently of one another, from a hydrogen atom or an alkyl group comprising from 1 to 6 carbon atoms; n is an integer of 0 to 20; and m is an integer of 1 to 6.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: October 27, 2020
    Assignee: Arkema France
    Inventors: Jean-Philippe Gillet, Eric Jorda
  • Patent number: 10815182
    Abstract: The invention relates to the use of a column with a separating wall as a purification/finishing column in a (meth)acrylic acid recovery method based on the use of two distillation columns in the absence of external organic solvent. The method according to the invention improves the energy balance for the method while improving the technical quality of the (meth)acrylic acid recovered. The method according to the invention further produces polymer-grade (or glacial) (meth)acrylic acid compatible with the production of high-molecular weight acrylic acid polymers.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 27, 2020
    Assignee: Arkema France
    Inventors: Michel Jean Fauconet, Serge Tretjak
  • Patent number: 10815370
    Abstract: The present invention relates to a liquid (meth) acrylic composition comprising a (meth) acrylic monomer, a (meth) acrylic polymer and a multistage polymer. In particular the present invention it relates to liquid composition comprising a (meth) acrylic monomer, a (meth) acrylic polymer and a multistage polymer that can be used as a syrup and especially as a syrup for impregnation. More particularly the present invention relates also to a process for preparing a liquid composition comprising a (meth) acrylic monomer, a (meth) acrylic polymer and a multistage polymer.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 27, 2020
    Assignee: Arkema France
    Inventors: Raber Inoubli, Philippe Hajji, Rosangela Pirri, Pierre Gerard
  • Patent number: 10815344
    Abstract: The present invention relates to a composition comprising a fibrous material, a multistage polymer and a (meth)acrylic polymer. The composition can be in form of a prepreg, a preform or a laminate. The present invention further relates to a method for making a composition comprising a fibrous material, a multistage polymer and a (meth)acrylic polymer and its use in making composite articles. The present invention also relates to a process for preparing a composition comprising a fibrous material, a multistage polymer and a (meth)acrylic polymer and its use for producing fibre reinforced impact modified composites.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 27, 2020
    Assignee: Arkema France
    Inventors: Pierre Escale, Raber Inoubli, Pierre Gerard, Philippe Hajji