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).

  • Patent number: 10344126
    Abstract: The invention relates to a method for manufacturing a thermoplastic material, in particular a mechanical part made from said material, characterized in that it includes at least one step of injection molding a polyamide composition for a thermoplastic material or a composition of a thermoplastic material, or a step implemented by extrusion of same, said material including a thermoplastic matrix made from at least one thermoplastic polymer.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: July 9, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Thierry Briffaud, Gilles Hochstetter, Mathieu Capelot
  • Patent number: 10301462
    Abstract: The invention relates to a composition comprising: a homopolymer polyvinylidene fluoride; a copolymer of vinylidene fluoride and of at least one other fluorinated comonomer copolymerizable with vinylidene fluoride (VDF), the weight proportion of the copolymer in the composition being between 10 to 35%; and a plasticizer, the weight proportion of the plasticizer in the composition being between 1 and 5%. The invention also relates to a method for producing the composition and the use thereof for producing various items.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: May 28, 2019
    Assignee: Arkema France
    Inventors: Gilles Hochstetter, Lionel Hugon, Thomas Labour, Thierry Lannuzel, Barbara Wiegert, Ramin Amin-Sanayei
  • Publication number: 20190153178
    Abstract: A method of manufacturing a component made of composite material whereby the said component is obtained from a preform containing local reinforcers and a first resin of low viscosity. The method includes: creation of the said preform comprising a first fibrous material and the said local reinforcers being in the form of reinforcers formed of a second fibrous material having fibres of mechanical strength greater than that of the fibres of the first fibrous material, so that they exhibit an elastic modulus or breaking stress at least 30% higher than that of the fibres of the said first fibrous material, the said second fibrous material being pre-impregnated with a thermoplastic, acrylic or polyamide polymer second resin having a glass transition temperature (Tg) above 80° C., the amount of polymer second resin being comprised between 25% and 60% by volume with respect to the total volume of the said second fibrous material.
    Type: Application
    Filed: March 31, 2017
    Publication date: May 23, 2019
    Applicant: ARKEMA FRANCE
    Inventors: Gilles HOCHSTETTER, Mathieu CAPELOT
  • Patent number: 10294358
    Abstract: The present invention relates to an impregnation process for a fibrous substrate, a liquid composition for implementing this process and the obtained impregnated fibrous substrate. The impregnated fibrous substrate is suitable for manufacturing mechanical or structured parts or articles. In particular the present invention deals with an industrial process for impregnating a fibrous substrate or long fibers with a viscous liquid composition containing mainly methacrylic or acrylic components. This viscous composition is called hereafter liquid (meth) acrylic syrup. The invention concerns also a fibrous substrate pre-impregnated with said syrup which is useful for manufacturing mechanical or structured parts or articles. More particular the impregnation of fibrous substrate with the (meth) acrylic syrup is achieved in a closed mold.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: May 21, 2019
    Assignee: Arkema France
    Inventors: Pierre Gerard, Jean-Pierre Cauchois, Gilles Hochstetter, Michel Glotin, Camille Perrin, Gilles Francois
  • Patent number: 10287410
    Abstract: A method for impregnating strands or strips of natural fibers, using the following successive steps: i) the impregnation of the strands or strips by immersion in a bath containing a fine aqueous polymer dispersion; followed by ii) the drying of the strands or strips using a heating system, with the progressive elimination of the water and the gradual melting of the polymer, and the coating of the strands or strips and the molten polymer incorporated into the core of the strands or strips as a binder between the fibers; iii) optionally, the forming of the treated strands or strips into their final shape; and iv) the cooling of the treated strands or strips. The aqueous polymer dispersion comprises at least one semi-crystalline or amorphous polymer and, in the case of an amorphous polymer, has a Tg varying between 50° C. and 175° C.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: May 14, 2019
    Assignees: AKREMA FRANCE, DEHONDT TECHNOLOGIES
    Inventors: Quentin Pineau, Gilles Hochstetter, Marc Audenaert, Guy Dehondt, Edouard Philippe
  • Patent number: 10240016
    Abstract: A process for a composite material, including an assembly of one or more reinforcing fibers, impregnated with at least one thermoplastic polymer with a glass transition temperature Tg of less than or equal to 75° C. and a melting point of from 150° C. to less than 250° C. or a Tg of greater than 75° C., the process including: i) a step of impregnating said assembly in bulk melt form with at least one thermoplastic polymer, which is the product of polymerization by polyaddition reaction of a reactive precursor composition including: a) at least one prepolymer P(X)n of said thermoplastic polymer, and b) at least one chain extender, represented by Y-A-Y, ii) a step of cooling and obtaining a fibrous preimpregnate, and iii) a step of processing and final forming of said composite material.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: March 26, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Gilles Hochstetter, Thierry Briffaud, Mathieu Capelot
  • 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
  • Publication number: 20190040198
    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: Application
    Filed: July 10, 2017
    Publication date: February 7, 2019
    Applicant: ARKEMA FRANCE
    Inventors: Mathieu CAPELOT, Gilles HOCHSTETTER
  • Publication number: 20180371209
    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: Application
    Filed: August 31, 2018
    Publication date: December 27, 2018
    Inventors: Pierre Gerard, Michel Glotin, Gilles Hochstetter
  • Publication number: 20180346666
    Abstract: Provided is a process 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. Also provided is a reactive prepolymer precursor composition for use in the process.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 6, 2018
    Applicant: Arkema France
    Inventors: Mathieu CAPELOT, Gilles HOCHSTETTER
  • Publication number: 20180251601
    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) 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 p
    Type: Application
    Filed: July 10, 2017
    Publication date: September 6, 2018
    Applicant: ARKEMA FRANCE
    Inventors: Mathieu CAPELOT, Gilles HOCHSTETTER
  • Publication number: 20180223057
    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: Application
    Filed: June 23, 2016
    Publication date: August 9, 2018
    Applicant: ARKEMA FRANCE
    Inventors: Mathieu CAPELOT, Gilles HOCHSTETTER
  • Patent number: 10023704
    Abstract: The use of an aqueous polymer dispersion including at least one amorphous polymer having a Tg varying between 55° C. and 175° C. or a semi-crystalline polymer having a melting point varying between 70° C. and less than 220° C., the weight concentration of the polymer in the dispersion varying between 5 and 50%, with the polymer particles having an average size of less than 10000 nm, as a binder for impregnating strands or strips of natural fibers, in particular flax fibers, with said polymer being incorporated in the core of the fiber bundle forming the strand or strip and thereby binding the fibers together.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: July 17, 2018
    Assignee: ARKEMA FRANCE
    Inventors: Quentin Pineau, Gilles Hochstetter, Marc Audenaert
  • Patent number: 10000662
    Abstract: A method for producing a composite material, including an assembly of one or a plurality of synthetic reinforcement fibers, impregnated with at least one thermoplastic polymer having a vitreous transition temperature Tg greater than or equal to 80° C. including: i) a step of impregnating said assembly with a precursor composition in the molten state and including: a) at least one prepolymer P(X)n of said thermoplastic polymer, including a molecular chain P having, at the ends n thereof, identical reactive functions X, said prepolymer having a semiaromatic and/or semi-cycloaliphatic structure, b) at least one chain extender including two identical functions Y, which are reactive with at least one of said functions X; ii) a step of polymerization by mass (poly)addition, in the molten state, of said prepolymer with said chain extender, with said thermoplastic polymer of the thermoplastic matrix being the result of said polymerization by mass polyaddition.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: June 19, 2018
    Assignee: ARKEMA FRANCE
    Inventors: Gilles Hochstetter, Thierry Briffaud, Michel Glotin, Pierre Nogues, Maliha Khusrawy
  • Publication number: 20180057748
    Abstract: The present invention relates to the field of thermoplastic composite materials. Specifically, the invention relates to a fluorinated, flame-retardant thermoplastic composition, to the prepreg prepared from said composition, to the composite material containing said prepreg, to the methods enabling manufacture, and to the uses of said material. The invention also relates to the use of a thermoplastic prepreg for manufacturing fire-resistant composite materials.
    Type: Application
    Filed: March 10, 2016
    Publication date: March 1, 2018
    Inventors: Gilles HOCHSTETTER, Marc AUDENAERT, Sébastien TAILLEMITE
  • Publication number: 20180009968
    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: Application
    Filed: September 15, 2017
    Publication date: January 11, 2018
    Inventors: Pierre GERARD, Michel GLOTIN, Gilles HOCHSTETTER
  • Publication number: 20170335107
    Abstract: A composition for a thermoplastic composite material having a thermoplastic matrix made of a semi-crystalline polyamide having a specific composition that includes at least two amide units, A, 55-95 mol %, and B, 5-45 mol %. A corresponds to x.T, wherein x is a C9-C18 linear aliphatic diamine and B corresponds to x?.T, wherein x? can be B1): a specific branched x-dependent aliphatic diamine, B2): MXD or B3): a linear x-dependent aliphatic diamine, said polyamide having a glass transition temperature Tg of at least 90° C. and a melting point no higher than 280° C. Also, a method for manufacturing the composite material, the semi-crystalline polyamide polymer, the use of the composition and of the polymer for parts made of composite material, as well as the material and the resulting composite part.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 23, 2017
    Applicant: ARKEMA FRANCE
    Inventors: Thierry BRIFFAUD, Gilles HOCHSTETTER
  • Patent number: 9777140
    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: October 19, 2012
    Date of Patent: October 3, 2017
    Assignee: Arkema France
    Inventors: Pierre Gerard, Michel Glotin, Gilles Hochstetter
  • Patent number: 9752029
    Abstract: A composition for a thermoplastic composite material having a thermoplastic matrix made of a semi-crystalline polyamide having a specific composition that includes at least two amide units, A, 55-95 mol %, and B, 5-45 mol %. A corresponds to x.T, wherein x is a C9-C18 linear aliphatic diamine and B corresponds to x?.T, wherein x? can be B1): a specific branched x-dependent aliphatic diamine, B2): MXD or B3): a linear x-dependent aliphatic diamine, said polyamide having a glass transition temperature Tg of at least 90° C. and a melting point no higher than 280° C. Also, a method for manufacturing said composite material, the semi-crystalline polyamide polymer, the use of the composition and of the polymer for parts made of composite material, as well as the material and the resulting composite part.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 5, 2017
    Assignee: ARKEMA FRANCE
    Inventors: Thierry Briffaud, Gilles Hochstetter
  • 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