Patents by Inventor Jean-Claude Saint-Martin

Jean-Claude Saint-Martin 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: 10011673
    Abstract: The present invention relates to thermoplastic compositions comprising as impact modifier a rubber containing graft polymer prepared by the process of emulsion polymerization and recovered by a special process controlling and adjusting the pH value, the use of the thermoplastic compositions in the production of molded bodies, and to the molded, bodies themselves. The present invention relates also to thermoplastic compositions comprising a polymeric impact modifier with a core-shell structure made by a multistage process and recovered by a special process controlling and adjusting the pH value comprising at least one gradient polymer the use of the thermoplastic compositions in the production of molded bodies, and to the molded, bodies themselves.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: July 3, 2018
    Assignee: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin, Magali Bergeret-Richaud
  • Patent number: 9714314
    Abstract: The present invention relates to new impact modifiers and a process for making these new impact modifiers and their use in polymeric compositions. More particularly the present invention relates to a new polymeric impact modifier with a core-shell structure made by a multistage polymerization process comprising at least one gradient polymer. The present invention relates as well to a process preparing such an impact modifier, especially its recovery process after the end of the polymerization. The present invention also relates to a thermoplastic composition comprising the new impact modifier.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: July 25, 2017
    Assignee: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin
  • Patent number: 9068036
    Abstract: The present invention relates to a process for producing impact modifiers, impact modified thermoplastic molding compositions and in particular impact modified polycarbonate or polycarbonate/polyester blends having improved resistance to degradation. More particularly the present invention relates to a process for producing polymeric impact modifiers with a core-shell structure made by a multistage process comprising a control and adjustment if necessary of the pH value before and during the recovery step.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: June 30, 2015
    Assignee: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin
  • Publication number: 20120157629
    Abstract: The present invention relates to new impact modifiers and a process for making these new impact modifiers and their use in polymeric compositions. More particularly the present invention relates to a new polymeric impact modifier with a core-shell structure made by a multistage polymerization process comprising at least one gradient polymer. The present invention relates as well to a process preparing such an impact modifier, especially its recovery process after the end of the polymerization. The present invention also relates to a thermoplastic composition comprising the new impact modifier.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Applicant: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin
  • Publication number: 20120157628
    Abstract: The present invention relates to, amongst other things, a process for manufacturing an impact modifier, concerns impact modified thermoplastic molding compositions and in particular a process for manufacturing and recovering the impact modifiers and their use in polymeric thermoplastic compositions. More particularly the present invention relates to a polymeric impact modifier with a core-shell structure manufactured by a multistage process comprising a special recovery process so that the composition of the thermoplastic polymer containing the impact modifier has a high fluidity while keeping its high impact strength.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Applicant: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin, Magali Bergeret-Richaud
  • Publication number: 20120157630
    Abstract: The present invention relates to thermoplastic compositions comprising as impact modifier a rubber containing graft polymer prepared by the process of emulsion polymerization and recovered by a special process controlling and adjusting the value, the use of the thermoplastic compositions in the production of molded bodies, and to the molded, bodies themselves. The present invention relates also to thermoplastic compositions comprising a polymeric impact modifier with a core-shell structure made by a multistage process and recovered by a special process controlling and adjusting the pH value comprising at least one gradient polymer the use of the thermoplastic compositions in the production of molded bodies, and to the molded, bodies themselves.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Applicant: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin, Magali Bergeret-Richaud
  • Publication number: 20120157601
    Abstract: The present invention relates to a process for producing impact modifiers, impact modified thermoplastic molding compositions and in particular impact modified polycarbonate or polycarbonate/polyester blends having improved resistance to degradation. More particularly the present invention relates to a process for producing polymeric impact modifiers with a core-shell structure made by a multistage process comprising a control and adjustment if necessary of the pH value before and during the recovery step.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Applicant: Arkema France
    Inventors: Christophe Navarro, Stephane Girois, Elisabeth Bay, Jean-Claude Saint-Martin
  • Patent number: D908241
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: January 19, 2021
    Assignee: BIOLOG-ID
    Inventors: Guillaume De Saint Martin, Jean-Claude Mongrenier, Benoit Cauchy
  • Patent number: D916315
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 13, 2021
    Assignee: BIOLOG-ID
    Inventors: Guillaume De Saint Martin, Jean-Claude Mongrenier, Benoit Cauchy