Patents by Inventor Jerome Chauveau
Jerome Chauveau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12087976Abstract: The present invention relates to new compositions for bipolar plates and processes for manufacturing said compositions. More particularly, the invention relates to a process for manufacturing a composition, comprising the following steps: —mixing a thermoplastic polymer in the molten state with a first conductive filler in order to obtain a conductive thermoplastic polymer, —grinding said conductive thermoplastic polymer in order to reduce it to powder; —mixing the conductive thermoplastic polymer powder with a second conductive filler.Type: GrantFiled: September 18, 2019Date of Patent: September 10, 2024Assignee: Arkema FranceInventors: Stéphane Bizet, Jérôme Chauveau
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Patent number: 12083709Abstract: The present invention relates to new compositions for bipolar plates and to methods for manufacturing said compositions. More specifically, the invention relates to a method for manufacturing a composition, comprising the following steps: mixing a thermoplastic polymer in the molten state with a first conductive charge in order to obtain a conductive thermoplastic polymer; grinding said conductive thermoplastic polymer in order to reduce it to a powder; mixing the conductive thermoplastic polymer powder with a second conductive charge.Type: GrantFiled: September 18, 2019Date of Patent: September 10, 2024Assignee: Arkema FranceInventors: Stéphane Bizet, Jérôme Chauveau
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Publication number: 20230241428Abstract: The invention relates to a respiratory protection mask made of polyvinylidene fluoride and to a method for manufacturing said mask. The invention also relates to a method for reconditioning said mask. The invention also relates to a method for recycling this respiratory protection mask.Type: ApplicationFiled: June 18, 2021Publication date: August 3, 2023Inventors: Anthony BONNET, Jerome CHAUVEAU, Salima BOUTTI
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Patent number: 11661508Abstract: The invention relates to an object or object part made from a composition comprising at least one fluoropolymer F, wherein: —the at least one fluoropolymer F comprises vinylidene fluoride units and at least 30 wt. % of units derived from at least one monomer of formula (I): (I) CX1X2?CX3Y, wherein each of X1, X2 and X3 is independently selected from H, Cl, F, Br, I and alkyl groups comprising from 1 to 3 carbon atoms which are optionally partly or fully halogenated and Y is an alkyl group comprising from 1 to 3 carbon atoms which is optionally partly or fully halogenated; —the proportion of the at least one fluoropolymer F in the composition is at least 80 wt. %; and—the viscosity of the composition is at least 1000 Pa·s at a temperature of 230° C. and at a shear rate of 100 s?1.Type: GrantFiled: June 4, 2018Date of Patent: May 30, 2023Assignee: Arkema FranceInventors: Ramin Amin-Sanayei, Samuel Devisme, Florent Abgrall, Jerome Chauveau, Anthony Bonnet, Gregory O'Brien
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Publication number: 20220389178Abstract: The invention relates to a fluoropolymer film which makes it possible to manufacture a gelled dense membrane which offers a very good compromise between ionic conductivity and mechanical strength after swelling. This membrane is intended for use as a separator for Li-ion batteries.Type: ApplicationFiled: November 10, 2020Publication date: December 8, 2022Inventors: Stephane Bizet, Gregory Schmidt, Jerome Chauveau
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Publication number: 20220045338Abstract: 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: ApplicationFiled: September 20, 2019Publication date: February 10, 2022Applicants: ARKEMA FRANCE, EISENHUTH GMBH & CO. KGInventors: Stéphane BIZET, Jérôme CHAUVEAU, Thorsten HICKMANN
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Publication number: 20220037677Abstract: The present invention relates to new compositions for bipolar plates and processes for manufacturing said compositions. More particularly, the invention relates to a process for manufacturing a composition, comprising the following steps:—mixing a thermoplastic polymer in the molten state with a first conductive filler in order to obtain a conductive thermoplastic polymer,—grinding said conductive thermoplastic polymer in order to reduce it to powder;—mixing the conductive thermoplastic polymer powder with a second conductive filler.Type: ApplicationFiled: September 18, 2019Publication date: February 3, 2022Inventors: Stéphane BIZET, Jérôme CHAUVEAU
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Publication number: 20210354332Abstract: The present invention relates to new compositions for bipolar plates and to methods for manufacturing said compositions. More specifically, the invention relates to a method for manufacturing a composition, comprising the following steps: mixing a thermoplastic polymer in the molten state with a first conductive charge in order to obtain a conductive thermoplastic polymer; grinding said conductive thermoplastic polymer in order to reduce it to a powder; mixing the conductive thermoplastic polymer powder with a second conductive charge.Type: ApplicationFiled: September 18, 2019Publication date: November 18, 2021Inventors: Stéphane BIZET, Jérôme CHAUVEAU
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Patent number: 11111612Abstract: The invention relates to very high melt flow fluoropolymer compositions, having low melt viscosities. The fluoropolymers have low molecular weights of from 5 kDa to 200 kDa and melt viscosities of less than 2 kilopoise (kP) at 232° C. and 100 s?1. One use for the high melt flow fluoropolymers is in the formation of very small diameters fibers, useful for melt-blown non-woven materials. Fiber diameters of less than 9 microns, and preferably 500 to 2000 nm can be produced.Type: GrantFiled: May 19, 2015Date of Patent: September 7, 2021Assignee: Arkema Inc.Inventors: James T. Goldbach, James J. Henry, Sean M. Stabler, Jérôme Chauveau
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Publication number: 20210146658Abstract: The invention relates to the field of cables for an offshore environment (known as “downhole cables”). More particularly, the invention relates to an electrical cable having an insulating multilayer structure based on fluorinated polymers and polyolefins. This structure is made up of multiple layers that are intercohesive and obtained by coextrusion. The invention also relates to the use of said cable as a drilling material for extracting petroleum or natural gas.Type: ApplicationFiled: May 14, 2019Publication date: May 20, 2021Inventors: Jerome CHAUVEAU, Jerome RONDIN, Florent ABGRALL
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Publication number: 20210130598Abstract: The invention relates to an object or object part made from a composition comprising at least one fluoropolymer F, wherein: —the at least one fluoropolymer F comprises vinylidene fluoride units and at least 30 wt. % of units derived from at least one monomer of formula (I): (I) CX1X2?CX3Y, wherein each of X1, X2 and X3 is independently selected from H, Cl, F, Br, I and alkyl groups comprising from 1 to 3 carbon atoms which are optionally partly or fully halogenated and Y is an alkyl group comprising from 1 to 3 carbon atoms which is optionally partly or fully halogenated; —the proportion of the at least one fluoropolymer F in the composition is at least 80 wt. %; and—the viscosity of the composition is at least 1000 Pa·s at a temperature of 230° C. and at a shear rate of 100 s?1.Type: ApplicationFiled: June 4, 2018Publication date: May 6, 2021Inventors: Ramin AMIN-SANAYEI, Samuel DEVISME, Florent ABGRALL, Jerome CHAUVEAU, Anthony BONNET, Gregory O'BRIEN
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Patent number: 10615405Abstract: The invention relates to the field of storing electrical energy in secondary lithium batteries of the Li-ion type. More precisely, the invention relates to an electrode material for a Li-ion battery, to the method for the production thereof, and to the use of same in a Li-ion battery. The invention also relates to Li-ion batteries produced using said electrode material.Type: GrantFiled: March 3, 2016Date of Patent: April 7, 2020Assignee: Arkema FranceInventors: Jérôme Chauveau, Grégory Schmidt, Stéphane Bizet
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Publication number: 20180076444Abstract: The invention relates to the field of storing electrical energy in secondary lithium batteries of the Li-ion type. More precisely, the invention relates to an electrode material for a Li-ion battery, to the method for the production thereof, and to the use of same in a Li-ion battery. The invention also relates to Li-ion batteries produced using said electrode material.Type: ApplicationFiled: March 3, 2016Publication date: March 15, 2018Inventors: Jérôme CHAUVEAU, Grégory SCHMIDT, Stéphane BIZET
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Patent number: 9905872Abstract: 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.Type: GrantFiled: April 22, 2014Date of Patent: February 27, 2018Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, INSTITUT NATIONAL DES SCIENCES APPLIQUEES, ARKEMA FRANCEInventors: Jean-François Gerard, Véronique Bounor Legare, Sérigne Seck, Pierrick Buvat, Janick Bigarre, Benoît Blondel, Jérôme Chauveau
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Publication number: 20170088989Abstract: The invention relates to very high melt flow fluoropolymer compositions, having low melt viscosities. The fluoropolymers have low molecular weights of from 5 kDa to 200 kDa and melt viscosities of less than 2 kilopoise (kP) at 232° C. and 100 s?1. One use for the high melt flow fluoropolymers is in the formation of very small diameters fibers, useful for melt-blown non-woven materials. Fiber diameters of less than 9 microns, and preferably 500 to 2000 nm can be produced.Type: ApplicationFiled: May 19, 2015Publication date: March 30, 2017Inventors: James T. GOLDBACH, James J. HENRY, Sean M. STABLER, Jérôme CHAUVEAU
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Publication number: 20160244910Abstract: 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.Type: ApplicationFiled: September 30, 2014Publication date: August 25, 2016Inventors: Jerome Chauveau, Benjamin KECH, Guenter SAPPELT
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Publication number: 20160156055Abstract: 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.Type: ApplicationFiled: April 22, 2014Publication date: June 2, 2016Inventors: Jean-François Gerard, Véronique Bounor Legare, Sérigne Seck, Pierrick Buvat, Janick Bigarre, Benoît Blondel, Jérôme Chauveau
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Patent number: 8007919Abstract: The invention concerns a coextrusion binder comprising a mixture of at least one ethylene homo- or copolymer (A1) of density ranging between 0.940 and 0.980 g/cm3 with at least one propylene homo- or copolymer (B), said mixture being grafted by at least one functional monomer and optionally diluted in at least one non-grafted ethylene homo- or copolymer (A2) of density ranging between 0.940 and 0.980 g/cm3; the grafting rate of said coextrusion binder being less than 0.5% wt. % based on the total weight of said binder; the density of said tie ranging between 0.940 and 0.980 g/cm3. The invention also concerns a structure comprising said type of binder as well as its use.Type: GrantFiled: May 23, 2006Date of Patent: August 30, 2011Assignee: Arkema FranceInventors: Jerome Chauveau, Fabrice Chopinez, Arnaud Gerbaulet, Jean-Laurent Pradel
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Publication number: 20100196643Abstract: The invention relates to a method for making PCTFE strings, that comprises Extruding PCTFE with an extruder connected to an assembly comprising a die and a metallic cooling jig, characterized in that a material is provided between the inner metallic wall of the cooling jig and the PCTFE such that the friction between the PCTFE and this material is lower than the friction between the PCTFE and the metal of the cooling jig.Type: ApplicationFiled: January 24, 2008Publication date: August 5, 2010Applicant: ARKEMA FRANCEInventors: Yves Dugard, Eric Leforestier, Ludovic Luce, Jerome Chauveau
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Publication number: 20090246533Abstract: The invention concerns a coextrusion binder comprising a mixture of at least one ethylene homo- or copolymer (A1) of density ranging between 0.940 and 0.980 g/cm3 with at least one propylene homo- or copolymer (B), said mixture being grafted by at least one functional monomer and optionally diluted in at least one non-grafted ethylene homo- or copolymer (A2) of density ranging between 0.940 and 0.980 g/cm3, the grafting rate of said coextrusion binder being less than 0.5 wt. % based on the total weight of said binder; the density of said binder ranging between 0.940 and 0.980 g/cm3. The invention also concerns a structure comprising said type of binder as well as its use.Type: ApplicationFiled: May 23, 2006Publication date: October 1, 2009Applicant: Arkema FranceInventors: Jerome Chauveau, Fabrice Chopinez, Arnaud Gerbaulet, Jean-Laurent Pradel