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: 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
  • Publication number: 20190322806
    Abstract: One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection moulding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields.
    Type: Application
    Filed: June 6, 2019
    Publication date: October 24, 2019
    Applicant: ARKEMA FRANCE
    Inventors: Benoit BRULE, Philippe BUSSI, Gilles HOCHSTETTER, Guillaume LE, Barbara RAMFEL
  • Publication number: 20190291363
    Abstract: A method for manufacturing a composite part including a fibrous reinforcement and a thermoplastic polymer matrix, which includes the steps of i) depositing the fibrous reinforcement in a two-part mold having a seal compressible by evacuating said mold having no vent, ii) filling the evacuated mold by injecting, in the molten state, a two-component reactive system made of a reactive thermoplastic prepolymer, the injection being carried out using a device having two distinct compartments for each one of the two reactive components mixed in a static mixer, followed by a compression and compaction of the content of the mold, and iii) removing the part from the mold, without any finishing treatment. Further, a device for implementing said method, to the resulting part and to the use of said method in an “in-mold” assembly method.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 26, 2019
    Applicants: Arkema France, Institut De Soudure
    Inventors: Jean-Pierre Cauchois, Gilles Hochstetter, Michel Glotin
  • Patent number: 10377856
    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 pol
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: August 13, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Mathieu Capelot, Gilles Hochstetter
  • Patent number: 10377898
    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: Grant
    Filed: August 2, 2017
    Date of Patent: August 13, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Thierry Briffaud, Gilles Hochstetter
  • Publication number: 20190241728
    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 mould.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Inventors: Pierre Gerard, Jean-Pierre Cauchois, Gilles Hochstetter, Michel Glotin, Camille Perrin, Gilles Raymond Francois
  • Patent number: 10358527
    Abstract: One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection molding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: July 23, 2019
    Assignee: Arkema France
    Inventors: Benoit Brule, Philippe Bussi, Gilles Hochstetter, Guillaume Le, Barbara Ramfel
  • Patent number: 10357923
    Abstract: A method for manufacturing a composite part including a fibrous reinforcement and a thermoplastic polymer matrix, which includes the steps of i) depositing the fibrous reinforcement in a two-part mold having a seal compressible by evacuating said mold having no vent, ii) filling the evacuated mold by injecting, in the molten state, a two-component reactive system made of a reactive thermoplastic prepolymer, the injection being carried out using a device having two distinct compartments for each one of the two reactive components mixed in a static mixer, followed by a compression and compaction of the content of the mold, and iii) removing the part from the mold, without any finishing treatment. Further, a device for implementing said method, to the resulting part and to the use of said method in an “in-mold” assembly method.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: July 23, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Jean-Pierre Cauchois, Gilles Hochstetter, Michel Glotin
  • 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