Patents Assigned to Arkema France
  • Patent number: 11912836
    Abstract: The present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers. In particular, the present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers, said composition having particularly advantageous compromises of heat-resistant, fluidity, scratch-resistant and chemical-resistant properties. The present invention also relates to a molded or extruded object comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and of styrene monomers, and the use of these objects.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: February 27, 2024
    Assignee: ARKEMA FRANCE
    Inventors: Stefania Cassiano Gaspar, Benoit Brule
  • Patent number: 11912640
    Abstract: The present invention relates to a process for neutralizing a composition A comprising 1-chloro-3,3,3-trifluoropropene, 1,1-dichloro-1,3,3-trifluoropropane and one or more acid compound(s) of formula HX with X?F or Cl; said process comprising the step a) of bringing said composition A into contact with a solution B under conditions capable of limiting the formation of 1-chloro-1,3,3-trifluoropropene.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: February 27, 2024
    Assignee: Arkema France
    Inventors: Emmanuel Boussarie, Kevin Hisler, Anne Pigamo
  • Publication number: 20240059973
    Abstract: The invention relates to a composition comprising a mixture of C3-C22 alcohol alkoxylates which have a narrow weight distribution and are capped in the terminal portion by a group chosen from linear or branched alkyls comprising between 1 and 6 carbon atoms, the phenyl group, benzyl group and hydrocarbon groups having a carboxy function —COO—, and groups having a sugar unit. The invention also relates to the method for preparing said composition and to the uses thereof as a surfactant, in particular as a surfactant with low foaming power.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 22, 2024
    Applicant: Arkema France
    Inventors: Jean-Philippe Gillet, Carl Bouret, Tony Bartolini
  • Patent number: 11903380
    Abstract: The invention relates to a mixture of polyoxymethylene dialkyl ethers (POM) having a specific molecular distribution of n as well as its preparation method. The invention also relates to a composition comprising: a) a mixture of polyoxymethylene dialkyl ethers (POM) having a restricted specific molecular distribution b) at least one biocidal agent c) at least one pro-penetrating agent d) at least one dye e) optionally, another additive and water as diluent, It also relates to a non-therapeutic method of preserving and/or embalming a dead human or animal body using the composition, such as the use of this composition for anatomopathological purposes.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: February 20, 2024
    Assignee: ARKEMA FRANCE
    Inventors: Jean-Luc Dubois, Jean-Luc Couturier, Didier Belluard, Christian Haroux
  • Publication number: 20240052198
    Abstract: The invention relates to the use of a powder comprising at least one polyamide and at least one epoxy resin for producing an electrically insulating coating on a surface. The invention also relates to an electricity transmitting component at least partially covered with a coating that can be obtained by melting such a powder.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 15, 2024
    Applicant: ARKEMA FRANCE
    Inventors: Santiago CARRERAS, Jean-Yves LOZE
  • Publication number: 20240051240
    Abstract: Impregnation of a fibrous material made from continuous fibres with a thermoplastic polymer matrix, the fibrous material comprising a thermoplastic sizing polymer and, before impregnation, an initial width. The method comprises an expansion step which is carried out by means of at least two tensioning members (E) and a heating system SC for heating the tensioning members and/or the fibrous material, the expansion being from 1.5 to 5 times the initial width. The expanded fibrous material is cooled below the Tg of the thermoplastic sizing polymer by means of a cooling system before being brought into contact with the thermoplastic polymer matrix.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 15, 2024
    Applicant: ARKEMA FRANCE
    Inventors: Thibaut SAVART, Arthur BABEAU, Axel SALINIER
  • Patent number: 11898039
    Abstract: Presented is a method of improving the incorporation of recycled bituminous products by using at least one surfactant as an alternative to the known rejuvenating oils, for the preparation of asphalt mixes containing recycled bituminous products. The use of such alternative surfactant(s) results in better mechanical properties of the asphalt mix, while using smaller amounts of fresh bitumen and greater amounts of recycled bituminous products.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: February 13, 2024
    Assignee: ARKEMA FRANCE
    Inventors: Juan Antonio Gonzalez Leon, Gilles Barreto, Vincent Luca
  • Patent number: 11897837
    Abstract: The invention relates to a process for the co-production of alkyl mercaptan and of dialkyl disulfide, comprising the following successive steps: a) reaction of a C1-C4 alcohol in the presence of hydrogen sulfide (H2S) to form a stream (M) comprising an alkyl mercaptan, water, and possibly unreacted hydrogen sulfide, b) purification of the stream (M) to obtain a stream (N) enriched in alkyl mercaptan, c) recovery of a first portion of the stream (N) including the alkyl mercaptan purified in step b), d) oxidation with sulfur of the second portion of the stream (N) of alkyl mercaptan, to form a stream (O) comprising a dialkyl disulfide, hydrogen sulfide, and possibly unreacted alkyl mercaptan, e) purification of the stream (O) to separate, on the one hand, the enriched dialkyl disulfide and, on the other hand, the hydrogen sulfide and possibly the alkyl mercaptan that has not reacted in step d), f) recycling of the hydrogen sulfide and possibly of the alkyl mercaptan isolated in step e) into the stream (M) ob
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: February 13, 2024
    Assignee: Arkema France
    Inventors: Georges Fremy, Jean-Michel Raymond, Eric Lamant
  • Publication number: 20240043599
    Abstract: The present invention relates to a process for the suspension polymerization of alkoxyamines with styrenic and (meth)acrylic monomers, to the beads and compositions thus obtained, and also to the use of these beads and compositions.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 8, 2024
    Applicant: Arkema France
    Inventors: Anne-Laure Brocas, Sylvain Bourrigaud, Céline Labarthe, Patrick Saury
  • Publication number: 20240043377
    Abstract: The present invention relates to a process for drying methyl mercaptan, notably by azeotropic distillation, comprising the following steps: 1) a stream (A) comprising methyl mercaptan and water is introduced into a distillation column (1); 2) said stream (A) is distilled in said column (1); 3) the distillate (B) is recovered in gaseous form, preferably at the top of the column; 4) the distillate (B) is condensed, preferably in a condenser (2), so as to obtain a condensate (C) in liquid form; 5) said condensate (C) is separated, preferably using a decanter (3), so as to obtain two separate liquid phases: an aqueous phase (D); and an organic phase (E) comprising methyl mercaptan; 6) all or part of the organic phase (E) is optionally introduced into the distillation column (1) as reflux; and 7) a stream (F) comprising the dried methyl mercaptan is recovered, preferably at the bottom of column (1).
    Type: Application
    Filed: December 16, 2021
    Publication date: February 8, 2024
    Applicant: ARKEMA FRANCE
    Inventors: Georges FREMY, Jean-Michel RAYMOND
  • Publication number: 20240042653
    Abstract: The invention relates to a method for separation of a polymeric article comprising at least one thermoplastic polymer, and at least one other constituent, wherein said separation method comprises: —a step of contacting the polymeric article with a liquid medium suitable for propagating shock waves, and —a step of applying a pulsed field to the liquid medium, so as to generate shock waves capable of dividing the polymeric article at an interface between the thermoplastic polymer and the other constituent.
    Type: Application
    Filed: December 8, 2021
    Publication date: February 8, 2024
    Applicants: ARKEMA FRANCE, XCRUSHER
    Inventors: Jean-Luc DUBOIS, Abdelaziz BENTAJ, Nicolas COUCHOT
  • Patent number: 11888161
    Abstract: The present invention relates to a composition for battery electrodes in which at least one solvent is a composition comprising between 80% and 95% by mass of N-methylpyrrolidone (NMP).
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: January 30, 2024
    Assignee: Arkema France
    Inventor: Alexander Korzhenko
  • Publication number: 20240025847
    Abstract: The present invention concerns a method for sulfhydrolysis from dialkyl sulfides and hydrogen sulfide, in the presence of a specific catalyst based on titanium dioxide and/or zirconium dioxide, as well as the corresponding use of such a catalyst. The present invention also concerns a method for preparing mercaptans, in particular methyl mercaptan, from at least one alcohol and hydrogen sulfide, comprising said sulfhydrolysis method.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 25, 2024
    Applicant: Arkema France
    Inventors: Georges Fremy, Hélori Salembier, Guillaume Laudumiey
  • Publication number: 20240026153
    Abstract: A transparent molding composition including, by weight (with a total of 100%): (A) 35 to 84% of a polyamide mixture including: 10 to 95% by weight of at least one semi-crystalline aliphatic polyamide, whose average number of carbon atoms relative to nitrogen atoms is greater than or equal to 8; 90 to 5% by weight of at least one amorphous polyamide; (B) from over 10 to 30% of at least one impact modifier; (C) from 6 to 20% of short glass fibers; (D) 0 to 10% of at least one prepolymer; and (E) 0 to 5% of at least one additive selected from stabilizers, dyes, plasticizers, processing aids or a mixture thereof, the index of refraction of each constituent (A), (B), (C) and (D) being included between 1.500 and 1.540, and wherein said composition has no PEBA and has a dry-measured modulus at 23° C. over 1700 MPa.
    Type: Application
    Filed: November 16, 2021
    Publication date: January 25, 2024
    Applicant: ARKEMA FRANCE
    Inventors: Thomas PRENVEILLE, Mathieu SABARD, Fabrice GLASSON, Olivier MASSOT
  • Patent number: 11879030
    Abstract: The present invention relates to a liquid composition comprising a monomer, a (meth)acrylic polymer and at least three initiators. In particular the present invention relates to a liquid composition comprising a monomer, a (meth)acrylic polymer and at least three initiators that have a different half life time. That liquid composition can be used as a syrup and especially as a syrup for impregnation of fibres or fibrous material. Also concerned is a thermoplastic material obtained after polymerization of the liquid composition. The invention also relates to a process for manufacturing such a liquid composition. The invention also relates to a process for impregnating a fibrous substrate of long fibres with said liquid composition. The invention also relates to a fibrous substrate impregnated with said liquid composition which is useful for manufacturing composite parts.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 23, 2024
    Assignee: ARKEMA FRANCE
    Inventors: Alexander Zoller, Pierre Gerard, Pierre Escale
  • Patent number: 11880131
    Abstract: A process for transfer imprinting using a novel family of anti-sticking layers, such as for nanoimprint lithography processes, is described.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 23, 2024
    Assignee: Arkema France
    Inventors: Christophe Navarro, Celia Nicolet, Xavier Chevalier, Florian Delachat, Hubert Teyssedre
  • Publication number: 20240018322
    Abstract: The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising: from 90 to 99.9% by weight of said block copolymer; and from 0.01 to 10% by weight of metal carbonate, for the total weight of the foam composition. The present invention also relates to a foamable composition and a method for manufacturing said foam, as well as the use of the foam in sports shoe soles, balloons or balls, gloves, personal protection equipment, rail soles, automobile parts, construction parts, electrical and electronic equipment parts, audio equipment, sound- and/or heat-proofing, and parts used to damp vibrations.
    Type: Application
    Filed: July 21, 2023
    Publication date: January 18, 2024
    Applicant: Arkema France
    Inventors: Clio COCQUET, Helena CHEMINET, François FERNAGUT, Yves DEYRAIL, Quentin PINEAU
  • Publication number: 20240018100
    Abstract: The present invention relates to a process for producing methyl mercaptan, comprising the following steps: A) methanol is reacted with hydrogen sulfide to form a stream (M), preferably in gaseous form, comprising methyl mercaptan, unreacted H2S and possibly sulfur byproducts; B) optionally, said stream (M) is condensed; C) at least one step of purification of said stream (M) is performed to obtain a stream enriched in methyl mercaptan; D) the gaseous vents resulting from said at least one purification step are recovered, said gaseous vents comprising at least one sulfur compound, preferably H2S; E) a gas-liquid extraction of said at least one sulfur compound, preferably H2S, is performed with liquid methanol so as to obtain a liquid methanol enriched in sulfur compound(s), preferably in H2S; and F) optionally, said enriched methanol is used as reagent for the reaction of step A).
    Type: Application
    Filed: December 16, 2021
    Publication date: January 18, 2024
    Applicant: ARKEMA FRANCE
    Inventors: Georges FREMY, Jean-Michel RAYMOND, Eric LAMANT
  • Publication number: 20240010793
    Abstract: The present invention relates to a method for continuously preparing a polyamide prepolymer, the viscosity in solution of which is comprised between 0.25 dL/g and 0.70 dL/g, as measured according to ISO 307:2007 in m-cresol at 20° C., the method being characterized in that it comprises a step of polycondensation on the basis of one or more polyamide precursor monomers, said polycondensation step being carried out in a extruder comprising at least two co-rotating conveying screws, the at least one monomer being previously added therein in solid or liquid form without being dissolved in a solvent or in water, and said polycondensation step being carried out without extracting the water formed during said polycondensation.
    Type: Application
    Filed: November 10, 2021
    Publication date: January 11, 2024
    Applicant: ARKEMA FRANCE
    Inventors: Sébastien QUINEBECHE, Thierry BRIFFAUD, Gérald ROMAZINI
  • Patent number: 11871650
    Abstract: The invention relates to a composition comprising a blend of fluorinated electroactive polymers and having a dielectric permittivity that exhibits greater stability over the operating temperature range with respect to each polymer employed on its own. The invention also relates to formulations and films produced on the basis of said composition. The invention also relates to a field-effect transistor, at least part of the dielectric layer of which is composed of a blend of fluorinated electroactive polymers.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: January 9, 2024
    Assignees: ARKEMA FRANCE, UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Fabrice Domingues Dos Santos, Thibaut Soulestin, Damien Thuau, Georges Hadziioannou