Patents by Inventor Thibaut SAVART

Thibaut SAVART 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).

  • Publication number: 20200223102
    Abstract: A method of manufacturing an impregnated fibrous material including a fibrous material made of continuous fibers and at least one thermoplastic polymer matrix, the method including pre-impregnating the fibrous material while it is in the form of a roving or several parallel rovings with the thermoplastic material and heating the thermoplastic matrix for melting, or maintaining in the molten state, the thermoplastic polymer after pre-impregnation, the at least one heating step being carried out by means of at least one heat-conducting spreading part (E) and at least one heating system, with the exception of a heated calendar, the roving or the rovings being in contact with part or all of the surface of the at least one spreading part (E) and partially or wholly passing over the surface of the at least one spreading part (E) at the level of the heating system.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 16, 2020
    Applicant: Arkema France
    Inventors: Gilles HOCHSTETTER, Mathieu CAPELOT, Thibaut SAVART, Arthur Pierre BABEAU, Denis HUZE, François TANGUY, Patrice GAILLARD
  • Publication number: 20200223101
    Abstract: The invention relates to a process for manufacturing a pre-impregnated fibrous material comprising a continuous fibre fibrous material and at least one thermoplastic polymer matrix, characterized in that said pre-impregnated fibrous material is made of a single unidirectional ribbon or a plurality of parallel ribbons unidirectional and in that said method comprises an impregnation step, in particular at the core, of said fibrous material being in the form of a roving or of several parallel rovings by said thermoplastic polymer being in powder form, said step of impregnation being carried out with said at least one thermoplastic polymer and said fibrous material the D90/D10 ratio of which by volume of the thermoplastic polymer particles ranges from 1.
    Type: Application
    Filed: December 20, 2017
    Publication date: July 16, 2020
    Applicant: Arkema France
    Inventors: Gilles Hochstetter, Arthur Pierre Babeau, Thibaut Savart, François Tanguy, Denis Huze, Mathieu Capelot, Patrice Gaillard
  • Publication number: 20200216627
    Abstract: The present invention relates to an impregnated fibrous material comprising a fibrous material made of continuous fibers and at least one reactive thermoplastic prepolymer, and optionally a chain extender, characterized in that the at least one reactive thermoplastic prepolymer is partially polymerized, optionally with the chain extender, and has a number-average molecular weight (Mn) ranging from 500 to 10,000, preferably from 4,000 to 8000, the proportion of fibers in the impregnated fibrous material being 45 to 65% by volume, preferably 50 to 60% by volume, and in particular 54 to 60%.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 9, 2020
    Applicant: ARKEMA FRANCE
    Inventors: Gilles HOCHSTETTER, Mathieu CAPELOT, Thibaut SAVART, Arthur Pierre BABEAU, Denis HUZE, François TANGUY, Patrice GAILLARD
  • Patent number: 10675785
    Abstract: An impregnated fibrous material comprising a fibrous material made of continuous fiber and at least one thermoplastic polymer matrix, wherein the at least one thermoplastic polymer is an non-reactive amorphous polymer, the glass transition temperature of which is such that Tg?80° C., or a non-reactive semi-crystalline polymer, the melting temperature of which is Tf?150° C., the fiber volume ratio is constant in at least 70% of the volume of the tape or ribbon, the fiber ratio in the pre-impregnated fibrous material ranging from 45 to 65% by volume, the porosity rate in the pre-impregnated fibrous material being less than 10%.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 9, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Gilles Hochstetter, Mathieu Capelot, Denis Huze, François Tanguy, Thibaut Savart, Arthur Pierre Babeau, Patrice Gaillard
  • Publication number: 20200139586
    Abstract: An impregnated fibrous material comprising a fibrous material made of continuous fiber and at least one thermoplastic polymer matrix, wherein the at least one thermoplastic polymer is an non-reactive amorphous polymer, the glass transition temperature of which is such that Tg?80° C., or a non-reactive semi-crystalline polymer, the melting temperature of which is Tf?150° C., the fiber volume ratio is constant in at least 70% of the volume of the tape or ribbon, the fiber ratio in the pre-impregnated fibrous material ranging from 45 to 65% by volume, the porosity rate in the pre-impregnated fibrous material being less than 10%.
    Type: Application
    Filed: June 21, 2018
    Publication date: May 7, 2020
    Applicant: Arkema France
    Inventors: Gilles HOCHSTETTER, Mathieu CAPELOT, Denis HUZE, François TANGUY, Thibaut SAVART, Arthur Pierre BABEAU, Patrice GAILLARD
  • Publication number: 20200130234
    Abstract: The invention relates to a process for manufacturing an impregnated fibrous material comprising continuous fibers and a thermoplastic matrix, said fibrous material is made from at least one unidirectional tape and said process comprises a step of pre-impregnating said fibrous material that is in the form of at least one roving with said matrix and a step of heating the matrix after pre-impregnation, said heating step being carried out by means of a non-heated and non-heat-conducting tension device and a heating system, with the exception of a heated calendar, said roving being in contact with the surface of said tension device and running over the surface of said tension device level with the heating system.
    Type: Application
    Filed: June 21, 2018
    Publication date: April 30, 2020
    Applicant: ARKEMA FRANCE
    Inventors: Gilles HOCHSTETTER, Mathieu CAPELOT, Thibaut SAVART, Arthur Pierre BABEAU, Denis HUZE, François TANGUY, Patrice GAILLARD
  • Publication number: 20200122359
    Abstract: Provided is a process for manufacturing a prepreg fibrous material comprising a continuous fibre fibrous material and at least one thermoplastic polymer matrix.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 23, 2020
    Applicant: Arkema France
    Inventors: Gilles Hochstetter, Arthur Pierre Babeau, Thibaut Savart, François Tanguy, Denis Huze, Mathieu Capelot, Patrice Gaillard
  • Publication number: 20190084252
    Abstract: The invention relates to a process for manufacturing a preimpregnated fibrous material containing a fibrous material made of continuous fibers and at least one thermoplastic polymer matrix, wherein the preimpregnated fibrous material is produced as a single unidirectional tape or of a plurality of parallel unidirectional tapes and wherein the process includes a step of impregnating, in particular fully and homogeneously, the fibrous material that is in the form of a roving or of several parallel rovings with the at least one thermoplastic polymer matrix that is in powder form, the impregnating step being carried out by a dry route in a tank and the control of the amount of the at least one thermoplastic polymer matrix in said fibrous material being achieved by control of the residence time of said fibrous material in the powder, with the exclusion of any electrostatic process with intentional charging.
    Type: Application
    Filed: December 20, 2017
    Publication date: March 21, 2019
    Applicant: Arkema France
    Inventors: Gilles Hochstetter, Arthur Pierre Babeau, Thibaut Savart, Francois Tanguy, Denis Huze, Mathieu Capelot, Patrice Gaillard
  • Patent number: 9873095
    Abstract: A copolymer having amphiphilic blocks includes at least one first hydrophilic block, obtainable from n-butyl acrylate and hydroxyethyl methacrylate monomers, and a second hydrophobic block likely to be obtained from a methyl methacrylate monomer. The copolymer is found to be particularly advantageous for use as an additive for manufacturing a polymer filtration membrane, particularly a PVDF membrane, particularly via a phase inversion method.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 23, 2018
    Assignees: POLYMEM, ARKEMA FRANCE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PAUL SABATIER TOULOUSE III
    Inventors: Olivier Lorain, Jean-Michel Espenan, Jean-Christophe Remigy, Jean-Francois Lahitte, Jean-Christophe Rouch, Thibaut Savart, Pierre Gerard, Stephanie Magnet
  • Publication number: 20170165875
    Abstract: A method of producing a pre-impregnated fibrous material including a fibrous material of continuous fibres and a thermoplastic polymer matrix, wherein the pre-impregnated fibrous material is produced in a single unidirectional strip or in a plurality of parallel unidirectional strips, the method including the following steps: (i) impregnating the fibrous material in the form of a strand or a plurality of parallel strands with the thermoplastic polymer in the form of a powder in a fluid bed; and (ii) shaping the strand or parallel strands of the fibrous material impregnated as in step (i) by calendering by at least one heating calender in the form of a single unidirectional strip or of a plurality of parallel unidirectional strips, the heating calender, in the latter case, including a plurality of calendering grooves, and the pressure and/or a spacing between the rollers of the calender being regulated by an auxiliary system.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 15, 2017
    Applicant: ARKEMA FRANCE
    Inventors: Patrice GAILLARD, Gilles HOCHSTETTER, Thibaut SAVART
  • Publication number: 20160346966
    Abstract: A method to produce a pre-impregnated fibrous material, in particular in ribbon form, including a fibrous reinforcement and thermoplastic polymer matrix, including a step of impregnating the fibrous material in the form of a single roving or several parallel rovings with the polymer in the molten state, the polymer in the molten state at the time of the impregnation containing a neutral gas in the supercritical state used as production aid by reducing viscosity in the molten state, preferably the gas being supercritical CO2.
    Type: Application
    Filed: February 11, 2015
    Publication date: December 1, 2016
    Applicant: ARKEMA FRANCE
    Inventors: Patrice GAILLARD, Gilles HOCHSTETTER, Thibaut SAVART
  • Publication number: 20160347009
    Abstract: A method of manufacturing a pre-impregnated fibrous material produced as a plurality of unidirectional parallel tapes, said method including the following steps: i) impregnation of the fibrous material while it is in the form of several parallel rovings, said impregnation step including: ia) immersion in a bath containing an aqueous dispersion of thermoplastic polymer, said immersion being followed by ib) drying, then ii) shaping by calendering, using at least one heated calender, into the form of a plurality of unidirectional parallel tapes using said calender including a plurality of calendering grooves according to the number of said tapes and with a pressure and/or separation between the rolls of said calender regulated by a control system.
    Type: Application
    Filed: February 11, 2015
    Publication date: December 1, 2016
    Applicant: ARKEMA FRANCE
    Inventors: Patrice GAILLARD, Gilles HOCHSTETTER, Thibaut SAVART
  • Publication number: 20160030896
    Abstract: A copolymer having amphiphilic blocks includes at least one first hydrophilic block, obtainable from n-butyl acrylate and hydroxyethyl methacrylate monomers, and a second hydrophobic block likely to be obtained from a methyl methacrylate monomer. The copolymer is found to be particularly advantageous for use as an additive for manufacturing a polymer filtration membrane, particularly a PVDF membrane, particularly via a phase inversion method.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 4, 2016
    Inventors: Olivier LORAIN, Jean-Michel ESPENAN, Jean-Christophe REMIGY, Jean-Francois LAHITTE, Jean-Christophe ROUCH, Thibaut SAVART, Pierre GERARD, Stephanie MAGNET