Patents Assigned to Arkema
  • Publication number: 20250051557
    Abstract: The invention relates to a composition comprising, relative to the total weight of the composition: from 20% to 90%, preferably from 40% to 70%, by weight of at least one thermoplastic elastomer (TPE), preferably an elastomeric thermoplastic copolymer, and from 10% to 80%, preferably from 30% to 60%, by weight of at least one crosslinked rubber powder, the crosslinked rubber powder having a specific surface area of between 0.08 m2/g and 100 m2/g, preferably between 0.1 and 80 m2/g, more preferentially between 0.1 and 50 m2/g, from 0 to 5%, preferably from 0.1% to 4% and notably from 1% to 2% of additives; from 0 to 40%, preferably from 5% to 20% and notably from 10% to 15% of compatibilizers.
    Type: Application
    Filed: December 22, 2022
    Publication date: February 13, 2025
    Applicant: ARKEMA FRANCE
    Inventor: Thomas PRENVEILLE
  • Publication number: 20250042754
    Abstract: The present invention relates to a process for preparing lithium bis(fluorosulfonyl)imide, comprising the following steps of: contacting of bis(fluorosulfonyl)imide with a lithium base in a solvent selected from carbonates, ethers and nitriles, to obtain a mixture comprising lithium bis(fluorosulfonyl)imide and water; diafiltration of the mixture on a nanofiltration membrane so as to obtain, firstly, a concentrate enriched in lithium bis(fluorosulfonyl)imide and depleted in water and, secondly, a permeate depleted in lithium bis(fluorosulfonyl)imide and enriched in water. The present invention also relates to a process for preparing an Li-ion battery electrolyte.
    Type: Application
    Filed: December 1, 2022
    Publication date: February 6, 2025
    Applicant: ARKEMA FRANCE
    Inventors: Sébastien LOGETTE, Julien JOUANNEAU, Jean-Luc COUTURIER
  • Publication number: 20250043108
    Abstract: The present invention relates to a polymer powder for the manufacture of articles by 3D printing, in particular by sintering, comprising a thermoplastic polymer, antioxidants, and a particular metal oxide, metal hydroxide and/or hydrotalcite, having improved thermal stability, improved recyclability and improved consistency of mechanical properties of the sintered parts. The invention also relates to a process for preparing this powder and to the use thereof in a process for manufacturing by sintering, and to the articles manufactured from said powder.
    Type: Application
    Filed: December 22, 2022
    Publication date: February 6, 2025
    Applicant: ARKEMA FRANCE
    Inventor: Jean-Charles DURAND
  • Patent number: 12215220
    Abstract: The invention relates to 3D printed parts made with thermoplastic polymers having a low stiffening temperature. 3D printed parts of the invention have very good Z layer adhesion, have a high elongation at break in the Z direction, preferably of more than 50 percent, and have at least an 80 percent ratio of Z to XY stress at yield or at break. The resulting part may be nearly isotropic—having similar mechanical properties in the XY and Z print directions. The excellent layer adhesion makes the resultant printed part more robust—able to withstand many cycles of use. Certain polymers of the invention produce printed parts that have a very low haze, and are nearly transparent.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: February 4, 2025
    Assignee: ARKEMA FRANCE
    Inventors: David Shin-Ren Liu, Mark A. Aubart, Sara Reynaud
  • Publication number: 20250034352
    Abstract: The present invention relates to a composite material comprising a) at least one elastomer, and b) an amount equal to or greater than 30% by weight, relative to the total weight of said composite material, of type 3A zeolite in which the cationic sites are occupied by the potassium cation, the sodium cation, at least one alkaline earth metal cation from column IIA of the periodic table and the hydronium ion. The invention also relates to the use of said composite material as an adsorbent material, for the production of master batches, for packaging and for the production of double-glazing.
    Type: Application
    Filed: November 28, 2022
    Publication date: January 30, 2025
    Applicant: Arkema France
    Inventors: Guillaume ORTIZ, Cécile LUTZ, Karine LOPEZ
  • Patent number: 12209152
    Abstract: The invention relates to novel linear, semi-crystalline, functional fluoropolymers that have been obtained by copolymerizing a fluorinated vinylic monomer and a hydrophilic monomer chosen from vinyl alkyl acids, vinyl phosphonates, functional acrylamides, carbonates, vinyl ethers, alkoxy compounds, and double hydrophilic group monomers.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: January 28, 2025
    Assignee: Arkema Inc.
    Inventors: James T. Goldbach, Anthony Bonnet, Caiping Lin, Wengsheng He, Katharine S. Pastore, James F. Coffey, Pa Nhia Xiong, Andrew Kahn
  • Patent number: 12209066
    Abstract: The present invention relates to a process for the concentration of a water-soluble organic peroxide, preferably an alkyl hydroperoxide, by reverse osmosis as well as to a process for the separation of a water-soluble organic peroxide and of a water-insoluble compound.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 28, 2025
    Assignee: ARKEMA FRANCE
    Inventors: Serge Hub, Philippe Maj
  • Patent number: 12208354
    Abstract: The present invention concerns a method of decarbonating a gas stream containing from 15% to 60% carbon dioxide, by passage of the said gas stream over a zeolitic agglomerate comprising at least one binder and at at least one zeolite, and having a mesoporous volume of between 0.02 cm3·g?1 and 0.15 cm3·g?1 and a mesoporous volume fraction of between 0.1 and 0.5, preferably between 0.15 and 0.45.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 28, 2025
    Assignee: Arkema France
    Inventors: Sandeep Jain, Leonel Gomes, Alexandre Terrigeol
  • Publication number: 20250027607
    Abstract: A tank comprising a multi-layer structure, for storing compressed gas, including in succession from inside to outside at least the three following layers: at least one sealing layer of a composition including at least one semi-crystalline thermoplastic polyamide having a Tm of less than or equal to 280° C., at least one intermediate composite reinforcing layer of a fibrous material in the form of continuous fibres impregnated with a composition including at least one semi-crystalline thermoplastic polyamide having a Tg of less than 100° C., at least one outer composite reinforcing layer of a fibrous material in the form of continuous fibres impregnated with a composition including at least one polyphthalamide having a Tg of greater than 80° C., the outermost sealing layer being welded to the innermost intermediate composite reinforcing layer and the outermost intermediate composite reinforcing layer being welded to the innermost outer composite reinforcing layer.
    Type: Application
    Filed: November 8, 2022
    Publication date: January 23, 2025
    Applicants: ARKEMA FRANCE, COVESS
    Inventors: Gilles HOCHSTETTER, Thibaut SAVART, Arthur BABEAU, Axel SALINIER, Tony VANSWIJGENHOVEN, Johan DE CLIPPELEIR
  • Publication number: 20250026956
    Abstract: The present invention relates to a flame retarded insulating composition for covering electric battery busbars, comprising by weight: (a) from 30 to 65%, more particularly from 30 to 63.9%, in particular from 30 to 60%, of at least one semi-crystalline aliphatic polyamide, (b) from 15 to 40%, more particularly from 15 to 30%, of at least one semi-aromatic polyamide, (c) from 15 to 30%, more particularly from 20 to 25%, of at least one phosphinate flame retardant, (d) from 5 to 20%, more particularly from 5 to 15%, of at least one functionalized polyolefin, (e) from 0 to 6%, more particularly from 1 to 6%, in particular between 2 and 4%, of at least one plasticizer, (f) from 0 to 10%, more particularly 10 from 0.1 to 5%, of at least one additive, the sum of the constituents (a) to (f) being equal to 100%.
    Type: Application
    Filed: December 1, 2022
    Publication date: January 23, 2025
    Applicant: ARKEMA FRANCE
    Inventors: Olivier MASSOT, Florent ABGRALL, Marjorie MARCOURT
  • Patent number: 12203014
    Abstract: The present invention relates to a composition suitable as (meth)acrylic adhesive composition comprising a multistage polymer in form of polymeric particles and a (meth)acrylic polymer, its process of preparation, and its use. In particular the present invention relates to a structural (meth)acrylic adhesive composition comprising a multistage polymer in form of polymeric particles made by a multistage process and a (meth)acrylic polymer, its process of preparation and its use. More particularly the present invention relates to structural (meth)acrylic adhesive composition made from a two part composition comprising a multistage polymer in form of polymeric particles made by a multistage process and a (meth)acrylic polymer, its process of preparation, and its use.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: January 21, 2025
    Assignee: ARKEMA FRANCE
    Inventors: Philippe Hajji, Rosangela Pirri, Rabi Inoubli, Guillaume Michaud
  • Patent number: 12202960
    Abstract: A method of reducing gloss that results in a polyvinyl chloride (PVC) component that exhibits a reduced level of surface gloss; wherein, the PVC or other thermoplastic resin component comprises: a PVC resin; one or more process aids comprising at least one base polymer with one or more of the process aids being functionalized with about 0.5 wt. % to about 35 wt. % of a reactive epoxy, hydroxyl, or carboxylic acid functional group based on the total weight of the process aids; and optionally, at least one impact modifier. The PVC or other thermoplastic resin component exhibits a gloss reduction of at least 5 points measured at an angle of 85 degrees or less when compared to a similar PVC component in which the process aids are not functionalized.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 21, 2025
    Assignee: Arkema France
    Inventors: Kevin R. Yocca, David A. Mountz, Jason M. Lyons
  • Patent number: 12194709
    Abstract: A multilayer structure for transporting or storing gas or for exploiting oil or gas deposits under the sea, including, from the inside to the outside, at least one sealing layer and at least one composite reinforcing layer, the innermost composite reinforcing layer being welded to the outermost adjacent sealing layer, the sealing layers of a composition including at least one semi-crystalline thermoplastic polymer, the Tm of which is less than 280° C., wherein at least one of the composite reinforcing layers of a fibrous material in the form of continuous fibers impregnated with a composition including at least one thermoplastic polymer, the thermoplastic polymer having a Tg greater than the maximum temperature of use of the structure (Tu), with Tg?Tu+20° C., Tu being greater than 50° C., and a multilayer structure selected from a reservoir, a pipe or a tube for transporting or storing hydrogen being excluded.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: January 14, 2025
    Assignee: ARKEMA FRANCE
    Inventor: Gilles Hochstetter
  • Patent number: 12199319
    Abstract: The invention relates to a method for producing a composition comprising the steps of: melt-blending a fluorinated polymer, preferably a polyvinylidene fluoride polymer, with a first conductive filler so as to obtain a conductive fluorinated polymer; grinding to powder said conductive fluorinated polymer; mixing the powder of conductive fluorinated polymer with a second conductive filler. The invention also relates to a composition comprising a second conductive filler and particles of conductive fluorinated polymer, wherein the particles of conductive fluorinated polymer comprise a fluorinated polymer matrix in which a first conductive filler is dispersed The invention also relates to a method for producing a bipolar plate and to a bipolar plate.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: January 14, 2025
    Assignees: ARKEMA FRANCE, Whitecell Eisenhuth GmbH & Co. KG
    Inventors: Stéphane Bizet, Jérôme Chauveau, Thorsten Hickmann
  • Patent number: 12199287
    Abstract: The invention relates to an anode for a Li-ion rechargeable battery, said anode being covered with a protective film based on fluorinated copolymer(s). The invention also relates to the processes for preparing this anode. The invention also relates to a Li-ion rechargeable battery comprising an anode according to the invention. The invention lastly relates to the use of fluorinated copolymer(s) as film for covering an anode for a lithium-ion battery comprising a negative electrode active material.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 14, 2025
    Assignee: ARKEMA FRANCE
    Inventors: Dominique Plee, Fabrice Domingues Dos Santos, Gregory Schmidt
  • Patent number: 12195417
    Abstract: The invention relates to a fatty amide which is a di- or triamide based on a polyether diamine or triamine which can be used as organogelator and in particular as rheology additive, said amide comprising a specific mixture of hydroxylated fatty acids and short hydroxylated acids. The invention also relates to a formulation composition using said fatty amide as rheology additive and to its use with this aim in coating, adhesive or PVC plastisol compositions and in particular transparent or non-transparent mastic compositions. Said rheology additive has the advantage of not needing a specific activation process before use, in contrast to the other known fatty amide additives based on hydrogenated castor oil derivatives.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: January 14, 2025
    Assignee: Arkema France
    Inventors: Dmitri Colesnic, Vincent Leroy, Laurent Lepinay
  • Patent number: 12187831
    Abstract: The present disclosure relates to liquid compositions including a (meth)acrylic polymer, a (meth)acrylic monomer, and a maturation agent selected from a metal oxide or a metal hydroxide. The (meth)acrylic polymer can contain a monomer carrying a carboxylic acid function and/or the (meth)acrylic monomer can carrying a carboxylic acid function. The liquid compositions can also contain a dynamic viscosity between 10 mPa·s and 10 000 mPa·s at 25° C.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: January 7, 2025
    Assignee: ARKEMA FRANCE
    Inventors: Pierre Gerard, Guillaume R. Cledat
  • Publication number: 20250002678
    Abstract: The present invention relates to a molding composition comprising, by weight: a) from 50% to 99% of a semicrystalline aliphatic polyamide exhibiting an inherent viscosity of less than or equal to 1.10, in particular of less than or equal to 1.00, in particular of less than or equal to 0.95, especially of less than or equal to 0.9, as determined according to the standard ISO 307:2007 but while using m-cresol instead of sulfuric acid, a temperature of 20° C. and a concentration of 0.5% by weight, b) from 1% to 50% of recycled carbon fibers exhibiting a mean length of less than or equal to 6 mm before compounding, said recycled carbon fibers being surface-coated (sized) with a polyamide, in particular an aliphatic polyamide, c) from 0% to 5% of at least one additive, the sum of the components a), b) and c) being equal to 100%.
    Type: Application
    Filed: November 15, 2022
    Publication date: January 2, 2025
    Applicant: ARKEMA FRANCE
    Inventors: Guillaume VINCENT, Mathieu SABARD
  • Publication number: 20250003530
    Abstract: A tube including at least one cylindrical element made of a pultruded fibrous material impregnated with a thermoplastic matrix, at least one additional fibrous reinforcement, partially or completely surrounding the cylindrical element(s), the fibers contained in the additional fibrous reinforcement being positioned along an axis different from the longitudinal axis of the cylindrical element, the total content of fibers of the tube being of between 40% and 70% by volume, with respect to the volume of the matrix and of the fibers contained in the tube.
    Type: Application
    Filed: July 27, 2022
    Publication date: January 2, 2025
    Applicant: ARKEMA FRANCE
    Inventors: Gilles HOCHSTETTER, Thibaut SAVART, Arthur BABEAU, Axel SALINIER
  • Patent number: 12180070
    Abstract: The present invention relates to an improved process for preparing hydrazine hydrate from the azine of methyl ethyl ketone obtained from methyl ethyl ketone by oxidizing ammonia with hydrogen peroxide in the presence of an activator, characterized in that it comprises a step of recycling the methyl ethyl ketone oxime purge.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 31, 2024
    Assignee: Arkema France
    Inventor: Jean-Marc Sage