Patents by Inventor Gilles Hochstetter

Gilles Hochstetter 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: 20210276225
    Abstract: An impregnated fibrous material comprising a fibrous material of continuous fibers and at least one thermoplastic polymer matrix, wherein at least one thermoplastic polymer is a non-reactive amorphous polymer whose glass transition temperature is such that Tp?80° C., or a non-reactive semi-crystalline polymer whose melting temperature is Tf?150° C., where Tg and Tf are determined by differential scanning calorimetry (DSC) according to standard 11357-2:2013 and 11357-3:2013 respectively, a fiber content by volume is constant in at least 70% of the volume of the impregnated fibrous material, the fiber content in said impregnated fibrous material being between 45 and 65% by volume on both sides of said fibrous material, a porosity rate in said impregnated fibrous material being less than 10%.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Applicant: Arkema France
    Inventors: Gilles HOCHSTETTER, Mathieu CAPELOT, Thibaut SAVART, Arthur Pierre BABEAU, Denis HUZE, François TANGUY, Patrice GAILLARD
  • Patent number: 10974418
    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: Grant
    Filed: February 11, 2015
    Date of Patent: April 13, 2021
    Assignee: ARKEMA FRANCE
    Inventors: Patrice Gaillard, Gilles Hochstetter, Thibaut Savart
  • Patent number: 10961362
    Abstract: A process and reactive prepolymer composition for producing a part made of a thermoplastic composite material by molding in a closed mold, where the material includes reinforcing fibers and a polyamide thermoplastic matrix impregnating the fibers having the steps of preparing the reactive prepolymer precursor, injecting the reactive prepolymer precursor in the molten state into the closed mold containing the fibers, thereby impregnating the fibers with the reactive precursor mixture, bulk polymerizing the reactive prepolymer precursor in situ, and demolding the molded part produced.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: March 30, 2021
    Assignee: Arkema France
    Inventors: Mathieu Capelot, Gilles Hochstetter
  • Patent number: 10961348
    Abstract: The invention relates to a composition for thermoplastic composite material comprising: 30% to 60% by volume, preferentially 35% to 50% by volume, of a thermoplastic matrix comprising from 50% to 100% by weight of a semi-crystalline polyamide polymer and from 0% to 50% by weight of at least one additive and/or of at least one other polymer, 40% to 70% by volume, preferentially 50% to 65% by volume, of long reinforcing fibers (or of long fibrous reinforcement), said thermoplastic matrix impregnating said long reinforcing fibers (or said long fibrous reinforcement), said semi-crystalline polyamide polymer being a nonreactive composition of at least one polyamide polymer, said composition being that of said thermoplastic matrix defined above, and said reactive polyamide prepolymer of the composition a) and said polyamide polymer of the composition b) comprising or consisting of at least one BACT/XT copolyamide.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: March 30, 2021
    Assignee: Arkema France
    Inventors: Mathieu Capelot, Gilles Hochstetter
  • Publication number: 20210086403
    Abstract: A web of impregnated fibrous material(s) including N individual tapes of fibrous material(s) stacked and/or joined in relation to one another, in which said N tapes adhere to each other and can overlap at least partially. The tapes of fibrous material(s) include continuous fibers impregnated with at least one thermoplastic polymer, and optionally a chain extender. The web has a surface, in cross-section perpendicular to the axis of the fibers, S, that is substantially equal to the sum of the surface, in cross-section perpendicular to the axis of the fibers, of each initial individual tape, denoted Sth, Sth being equal to N×I×Ep, wherein l represents the average width of a tape and Ep represents the average thickness of a tape, N being between 2 and 2000, and the average thickness of each individual tape being less than or equal to 150 ?m.
    Type: Application
    Filed: March 19, 2019
    Publication date: March 25, 2021
    Applicant: Arkema France
    Inventors: Thibaut SAVART, Gilles HOCHSTETTER, Anthony FLORENCIE, Patrice GAILLARD, Axel SALINIER, Arthur Pierre BABEAU
  • Publication number: 20210016523
    Abstract: An impregnated fibrous material including at least one fibrous material of continuous fibers and: at least one non-reactive thermoplastic polymer matrix, or at least one reactive thermoplastic prepolymer, which is a precursor of the non-reactive thermoplastic polymer, optionally mixed with a chain extender, wherein the at least one non-reactive thermoplastic polymer or the reactive prepolymer is an amorphous polymer or prepolymer having a glass transition temperature such that Tg?80° C., or is a semi-crystalline polymer or prepolymer having a melting temperature Tf?150° C., the fiber content in the pre-impregnated fibrous material being between 45 and 65 volume %, and the average thickness of the impregnated fibrous material being less than or equal to 100 ?m, independently of the number of fibers present in the fibrous material before impregnation.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 21, 2021
    Applicant: ARKEMA FRANCE
    Inventors: Gilles HOCHSTETTER, Thibaut SAVART, Arthur Pierre BABEAU, Anthony FLORENCIE, Patrice GAILLARD, Axel SALINIER
  • Publication number: 20200407534
    Abstract: The present invention relates to an article that comprising recycled thermoplastic polymeric composite material. The thermoplastic polymeric composite material is obtained by in situ polymerization of a thermoplastic resin with a fibrous material. More particularly the present invention relates to a polymeric composite material obtained by in-situ polymerization of a thermoplastic (meth)acrylic resin and a fibrous material containing long fibers and its use, a process for making such a composite material and manufactured mechanical or structured part or article comprising this polymeric composite material, especially wind turbine parts including welded parts and sports equipment.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Pierre GERARD, Michel GLOTIN, Gilles HOCHSTETTER
  • Patent number: 10800904
    Abstract: The present invention relates to a composite material obtained by in situ polymerization of a thermoplastic resin with a fibrous material. More particularly the present invention relates to a polymeric composite material obtained by in-situ polymerization of a thermoplastic (meth)acrylic resin and a fibrous material containing long fibers and its use, a process for making such a composite material and manufactured mechanical or structured part or article comprising this polymeric composite material, especially wind turbine parts including welded parts.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 13, 2020
    Assignee: Arkema France
    Inventors: Pierre Gerard, Michel Glotin, Gilles Hochstetter
  • Patent number: 10738170
    Abstract: Method for open-mold production of a semi-crystalline thermoplastic polyamide matrix fiber-reinforced composite. The matrix has Tg>80° C. and Tf between 280° C. and 200° C. The matrix is prepared in-situ by molten state bulk polycondensation of a reactive precursor composition including A: a first polyamide prepolymer A1 each carrying two identical functions and a second polyamide prepolymer A2 each carrying two identical functions different from and coreactive with those of A1. The reactive precursors may alternatively include B: a prepolymer carrying (on the same chain) two different functions coreactive with each other. The reactive precursors may alternatively include a precursor composition that is a mixture of (A+B). The method involves successive steps of i) preparing the reactive mixture, ii) continuously coating the fibers by deposition-impregnation with the reactive mixture, iii) in-situ bulk polycondensation in an open heated die, and iv) cooling the composite.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 11, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Mathieu Capelot, Gilles Hochstetter
  • 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
  • Patent number: 10711117
    Abstract: The present invention relates to a composite material obtained by in situ polymerization of a thermoplastic resin with a fibrous material. More particularly the present invention relates to a polymeric composite material obtained by in-situ polymerization of a thermoplastic (meth)acrylic resin and a fibrous material containing long fibers and its use, a process for making such a composite material and manufactured mechanical or structured part or article comprising this polymeric composite material.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 14, 2020
    Assignee: Arkema France
    Inventors: Pierre Gerard, Michel Glotin, Gilles Hochstetter
  • 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
  • Patent number: 10633490
    Abstract: The invention relates to a composition for thermoplastic material comprising: 0 to 70% by weight, preferentially 20% to 60% by weight, of short reinforcing fibers, 30% to 100% by weight, preferentially 40% to 80% by weight, of a thermoplastic matrix based on at least one semi-crystalline polyamide polymer, 0 to 50% of additives and/or other polymers, said semi-crystalline polyamide polymer being: a) a reactive composition comprising or consisting of at least one reactive polyamide prepolymer which is a precursor of said semi-crystalline polyamide polymer, or, as an alternative to a), b) a nonreactive composition of at least one polyamide polymer, said composition being that of said thermoplastic matrix defined above, and said reactive polyamide prepolymer of the composition a) and said polyamide polymer of the composition b) comprising or consisting of at least one BACT/XT copolyamide.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: April 28, 2020
    Assignee: Arkema France
    Inventors: Mathieu Capelot, Gilles Hochstetter
  • 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: 20200017636
    Abstract: The invention relates to a composition for a thermoplastic material comprising: 0 to 70% by weight, preferably 20 to 60% by weight, of short reinforcing fibers, 30 to 1000% by weight, preferably 40 to 80% by weight, of a thermoplastic matrix based on at least one semi-crystalline polyamide polymer, 0 to 50% of additives and/or other polymers, said semi-crystalline polyamide polymer being: a) a reactive composition comprising or consisting of at least one reactive precursor polyamide prepolymer of said semi-crystalline polyamide polymer, or as an alternative to a), b) a non-reactive composition of at least one polyamide polymer, said composition being that of the thermoplastic matrix defined above, and said reactive polyamide prepolymer of composition a) and said polyamide polymer of composition b) comprising or consisting of at least one BACT/XT copolyamide.
    Type: Application
    Filed: March 23, 2018
    Publication date: January 16, 2020
    Inventors: Mathieu Y. CAPELOT, Gilles HOCHSTETTER
  • Publication number: 20190338074
    Abstract: The invention relates to a composition for thermoplastic composite material comprising: 30% to 60% by volume, preferentially 35% to 50% by volume, of a thermoplastic matrix comprising from 50% to 100% by weight of a semi-crystalline polyamide polymer and from 0% to 50% by weight of at least one additive and/or of at least one other polymer, 40% to 70% by volume, preferentially 50% to 65% by volume, of long reinforcing fibers (or of long fibrous reinforcement), said thermoplastic matrix impregnating said long reinforcing fibers (or said long fibrous reinforcement), said semi-crystalline polyamide polymer being a nonreactive composition of at least one polyamide polymer, said composition being that of said thermoplastic matrix defined above, and said reactive polyamide prepolymer of the composition a) and said polyamide polymer of the composition b) comprising or consisting of at least one BACT/XT copolyamide.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: Mathieu CAPELOT, Gilles HOCHSTETTER