Patents Assigned to Arkema France
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Publication number: 20240425691Abstract: A one-pack polymer modifier containing a) at least one process aid functionalized with a reactive epoxy, hydroxyl, ?-keto ester, ?-keto amide or carboxylic acid functional group, b) at least one impact modifier, c) optionally, at least one mineral filler and d) optionally, at least one further additive is useful for modifying the properties of thermoplastic polymers such as PVC, including reducing the surface gloss of an article prepared from the thermoplastic polymer and improving the impact strength of such an article.Type: ApplicationFiled: June 25, 2024Publication date: December 26, 2024Applicant: ARKEMA FRANCEInventors: Kevin R. YOCCA, Amy A. LEFEBVRE, Jason M. LYONS
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Patent number: 12173129Abstract: The present invention concerns an impregnated fibrous material comprising at least one continuous-fiber fibrous material in the form of a roving or a plurality of parallel rovings and at least one thermoplastic polymer matrix, characterized in that said at least one thermoplastic polymer is an amorphous or semi-crystalline polymer having a glass transition temperature such that Tg?40° C., especially Tg?100° C., in particular ?120° C., the fiber content of said impregnated fibrous material being from 45 to 65% by volume, preferably from 50 to 60% by volume, especially from 54 to 60% by volume, the number-average molecular mass Mn of said thermoplastic polymer being from 11,000 to 25,000 g/mol, the melt viscosity of said thermoplastic polymer being from 80 to 1500 Pa·s, as measured by plane-plane rheology at 1 Hz and 2% deformation, at a temperature of Tg+220° C.Type: GrantFiled: December 17, 2019Date of Patent: December 24, 2024Assignee: ARKEMA FRANCEInventors: Gilles Hochstetter, Lise Deves, Mathieu Capelot, Thierry Briffaud, Yves Deyrail
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Patent number: 12172954Abstract: 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: GrantFiled: September 28, 2022Date of Patent: December 24, 2024Assignee: Arkema FranceInventors: Jean-Philippe Gillet, Thierry Beillon
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Publication number: 20240417601Abstract: The present invention relates to an adhesive composition comprising an aqueous dispersion of polymer particles which have been subjected to a post-polymerization treatment with an excess of peroxide. The invention also relates to a process for preparing the adhesive composition, to a process for increasing the adhesion of an adhesive composition, to a process for producing an adhesive article and to an adhesive article obtained with the adhesive composition.Type: ApplicationFiled: November 9, 2022Publication date: December 19, 2024Applicant: ARKEMA FRANCEInventors: Leo Mario SAIJA, Mario LUGLI, Andrea PREMOLI, Luca PERINO, Simona FERRETTI, Silvia CONTI, Manuela ORCESI
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Patent number: 12167698Abstract: The present invention relates to compositions obtained by mixing specific electroactive fluoro-terpolymers and specific electroactive fluorinated copolymers. The invention also concerns liquid formulations (inks) that can be used through conventional processing technologies for printed electronics and microelectronics in a safe environment, based on these compositions. Another aspect of this invention are the films manufactured using these formulations, and the devices comprising at least one layer of these films.Type: GrantFiled: July 19, 2018Date of Patent: December 10, 2024Assignee: ARKEMA FRANCEInventors: Fabrice Domingues Dos Santos, Seung Tae Choi, Hung Viet Tran
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Publication number: 20240399645Abstract: The use of sheets comprising at least one face consisting of a pseudo-amorphous composition based on polyaryl ether ketone(s) for a twin sheet thermoforming process. A twin sheet thermoforming process for manufacturing a hollow body. A hollow body comprising at least one internal surface consisting of a crystallized composition based on polyaryl ether ketone(s), obtainable by the process.Type: ApplicationFiled: October 11, 2022Publication date: December 5, 2024Applicant: ARKEMA FRANCEInventors: Pierre GONNETAN, Clément PAUL, Philippe BUSSI, Olivier RODARY
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Publication number: 20240399674Abstract: A test piece configured for the implementation of a method for evaluating an assembly by welding of parts made of thermoplastic materials, wherein the test piece includes at least two parts based on thermoplastic materials having surfaces to be welded that are at least partially placed opposite one another and respective free surfaces, wherein at least one of the parts is a perforated reference part including at least one perforation.Type: ApplicationFiled: August 2, 2024Publication date: December 5, 2024Applicants: ARKEMA FRANCE, INSTITUT DE SOUDUREInventors: Aurélien PHILIPPE, Philippe KLEIN, Michel GLOTIN
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Patent number: 12158239Abstract: Multilayer structure for transporting hydrogen, including, from the inside, at least one sealing layer and at least one composite reinforcing layer, an innermost composite reinforcing layer being wound around an outermost adjacent sealing layer, the sealing layers of a composition predominantly of at least one semi-crystalline, long-chain polyamide thermoplastic polymer P1i (i=1 to n, n being the number of sealing layers), the Tf of which, as measured according to ISO 11357-3: 2013, is greater than 160° C., with the exception of one polyether block amide (PEBA), up to 50% by weight of impact modifier relative to the total weight of the composition and up to 1.5% by weight of plasticiser relative to the total weight of the composition, the composition being free of nucleating agent, and at least one of the composite reinforcing layers being of a fibrous material.Type: GrantFiled: January 26, 2021Date of Patent: December 3, 2024Assignee: ARKEMA FRANCEInventors: Nicolas Dufaure, Patrick Dang, Antoine Goupil
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Publication number: 20240396079Abstract: The present invention relates to a composition comprising crystals of one or more zeolites, at least one polymeric binder, in an amount between 0.5% and 20% by weight, and at least one ion conductor comprising at least one lithium salt. The invention also relates to the use of said composition as a battery separator, for example of a secondary battery, more specifically of an all-solid-state battery.Type: ApplicationFiled: September 30, 2022Publication date: November 28, 2024Applicant: Arkema FranceInventors: Gérôme GODILLOT, Christophe NAVARRO, Cécile LUTZ, Muriel PLECHOT
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Patent number: 12152111Abstract: The present invention relates to a process for the recycling of an article comprising a thermoplastic polymer P1 resin, said thermoplastic polymer P1 having been formed from base monomers, said process comprising the following stages: heating said resin in order to convert, at least in part, the thermoplastic polymer P1 into at least two polymers P2, said at least two polymers P2 having a lower molar mass than the molar mass of said polymer P1, cooling said at least two polymers P2 obtained after heating to a temperature substantially equal to or lower than the boiling point of said base monomers, and dissolving said at least two polymers P2 in a solution comprising said base monomers.Type: GrantFiled: April 26, 2019Date of Patent: November 26, 2024Assignee: ARKEMA FRANCEInventor: Jean-Luc Dubois
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Publication number: 20240382927Abstract: The present invention relates to new zeolitic adsorbent materials which are particularly specific and adapted for the non-cryogenic separation of gases, and more particularly for the separation of nitrogen by adsorption in gas streams such as air, and also for the purification of hydrogen by adsorption of carbon monoxide (CO) and/or nitrogen (N2), and also to the use thereof especially for the preparation of medical oxygen in oxygen concentrators for respiratory assistance.Type: ApplicationFiled: July 29, 2024Publication date: November 21, 2024Applicant: Arkema FranceInventors: Guillaume Ortiz, Cécile Lutz, Quitterie Persillon, Sylvie Szendrovics
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Publication number: 20240384816Abstract: A multilayer tubular structure intended for the transportation of hydrogen, including, from the outside toward the inside, at least one barrier layer and at least one internal layer located below the barrier layer, the internal layer or the combination of the layers and of the other optional layers located below the barrier layer containing, on average, from 0% to 1.5% by weight of plasticizer, with respect respectively to the total weight of the composition of the layer or to the total weight of the combination of the compositions of the layers and of the other optional layers located below the barrier layer, the internal layer exhibiting a content of extractables of less than or equal to 3% by weigh of the sum of the constituents of the composition, the internal layer predominantly including at least one polyamide of aliphatic type or having more than 75% of aliphatic units.Type: ApplicationFiled: September 22, 2022Publication date: November 21, 2024Applicant: ARKEMA FRANCEInventors: Fidèle NIZEYIMANA, Nicolas DUFAURE, Antoine GOUPIL, Thomas PRENVEILLE
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Publication number: 20240384095Abstract: The invention relates to a powder comprising particles consisting of a composition comprising at least one polyaryletherketone and at least one flexible thermoplastic polymer. The elastic modulus of the flexible thermoplastic polymer is at least two times lower than that of the polyaryletherketone. The polyaryletherketone forms a matrix in which the flexible thermoplastic polymer is dispersed. The powder particles have a volume-weighted particle size distribution with a median diameter d50 of strictly less than 500 ?m. The invention also relates to a process for manufacturing the powder and to uses thereof and objects derived therefrom.Type: ApplicationFiled: September 26, 2022Publication date: November 21, 2024Applicant: ARKEMA FRANCEInventors: Benoît BRULE, Nadine DECRAEMER
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Patent number: 12146010Abstract: The invention relates to a co-initiator comprising the aminobenzoate derivative according to Formula (I) and at least one ancillary amine, wherein the reactivity and solubility of said co-imitator in UV-curable resins is sufficiently high that the co-initiator can be used in UV radiation curing processes. Formula (I) wherein R1 and R2 independently represent methyl or ethyl groups; and j, k, l and m are independently 0 to 20.Type: GrantFiled: October 16, 2020Date of Patent: November 19, 2024Assignee: Arkema FranceInventors: David Jepson, Richard Plenderleith, Kelly Squires, Andrew Towns, Petr Sehnal
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Patent number: 12148548Abstract: An insulated conductor including: at least one electrical conductor; and, an insulating coating covering said electrical conductor, having n layer(s), “n” being an integer greater than or equal to 1, the nth layer being the outermost layer having a pseudo-amorphous composition Cn including at least 50% by weight of a polyaryletherketone. A process for manufacturing the insulated conductor, a heat-welding process using two sections of insulated conductor, and a coil capable of being obtained by heat-welding a winding of the insulated conductor.Type: GrantFiled: April 30, 2021Date of Patent: November 19, 2024Assignee: ARKEMA FRANCEInventors: Philippe Bussi, Clément Paul, Pierre Gonnetan
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Publication number: 20240376264Abstract: A composition for a thermoplastic composite material including: a) from 65% to 95% by weight of at least one reactive semicrystalline polyamide prepolymer with an average molar mass Mn of less than 5000 g/mol and having a volume-mean diameter D50 of the reactive semicrystalline polyamide prepolymer powder particles ranging from 10 to 300 ?m, b) from 5% to 35% by weight of at least one flame retardant chosen from an at least partially meltable flame retardant in powder form and having a volume-mean diameter D50 of from 10 to 300 ?m, and a non-meltable flame retardant in premilled powder form with a volume-mean diameter D50 of from 1 to 50 ?m, and c) from 0 to 2% by weight of at least one additive, and said reactive polyamide prepolymer comprising or consisting of at least one Z/BACT/XT copolyamide.Type: ApplicationFiled: March 31, 2022Publication date: November 14, 2024Applicant: ARKEMA FRANCEInventors: Thibaut SAVART, Lise DEVES, Jean-Jacques FLAT, Florent ABGRALL
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Publication number: 20240376311Abstract: A thermoplastic composite material including: a) from 65% to 95% by weight of at least one reactive semicrystalline polyamide prepolymer with an average molecular mass Mn of less than or equal to 8000 g/mol and having a volume-mean diameter D50 of the reactive semicrystalline polyamide prepolymer powder particles ranging from 10 to 300 ?m, b) from 5% to 35% by weight of at least one flame retardant chosen from an at least partially meltable flame retardant in powder form and a non-meltable flame retardant in premilled powder form with a volume-mean diameter D50 of from 1 to 50 ?m, and c) from 0 to 2% by weight of at least one meltable or non-meltable additive with a volume-mean diameter D50 of from 1 to 50 ?m if it is non-meltable and in powder form.Type: ApplicationFiled: March 31, 2022Publication date: November 14, 2024Applicant: ARKEMA FRANCEInventors: Thibaut SAVART, Lise DEVES, Jean-Jacques FLAT, Florent ABGRALL
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Patent number: 12134558Abstract: 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 pyrazoline-class heterocycles purge.Type: GrantFiled: May 12, 2020Date of Patent: November 5, 2024Assignee: Arkema FranceInventor: Jean-Marc Sage
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Patent number: 12134691Abstract: The invention relates to a copolymer comprising units derived from monomers of vinylidene fluoride and/or trifluoroethylene, as well as fluorinated monomers X comprising a double bond and a leaving group selected from among chlorine, bromine and iodine atoms, the leaving groups being partially replaced by azide groups in the copolymer.Type: GrantFiled: July 16, 2018Date of Patent: November 5, 2024Assignees: ARKEMA FRANCE, UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Georges Hadziioannou, Eric Cloutet, Cyril Brochon, Damien Thuau, Konstantinos Kallitsis, Fabrice Domingues Dos Santos, Thibaut Soulestin
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Publication number: 20240360283Abstract: The present invention relates to a copolymer having polyamide blocks and having polyether blocks comprising aromatic units, and to its use as antistatic additive. The present invention also relates to a transparent antistatic composition comprising at least one copolymer having polyamide blocks and having polyether blocks and a thermoplastic polymer matrix.Type: ApplicationFiled: July 27, 2022Publication date: October 31, 2024Applicant: ARKEMA FRANCEInventors: Quentin PINEAU, Marie-Ange LEMAITRE