Patents by Inventor Paul Rostaing

Paul Rostaing 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).

  • Elastoforming die/form block comprising low-hardness silicone elastomer
    Patent number: 5000029
    Abstract: Resilient, crosslinked silicone elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, comprise a crosslinked fluid organopolysiloxane including at least one silicone-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: March 19, 1991
    Assignee: Rhone-Poulenc Chimie
    Inventors: Claude Laurent, Paul Rostaing, Rene Lyobard
  • Process and apparatus using an elastoforming die/form block comprising low-hardness silicone elastomer
    Patent number: 4926673
    Abstract: Resilient, crosslinked silicone elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, include a crosslinked fluid organopolysiloxane having at least one silicone-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: May 22, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Claude Laurent, Paul Rostaing, Rene Lyobard
  • Elastoforming die/form block comprising low-hardness silicone elastomer
    Patent number: 4824891
    Abstract: Resilient, crosslinked silicon elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, comprise a crosslinked fluid organopolysiloxane including at least one silicon-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: April 25, 1989
    Assignee: Rhone-Poulenc Chimie
    Inventors: Claude Laurent, Paul Rostaing, Rene Lyobard
  • Blowing agent admixture for foamable organopolysiloxane compositions
    Patent number: 4705810
    Abstract: Novel blowing agents for foamable organopolysiloxane compositions, notably the platinum-catalyzed such organopolysiloxane compositions, comprise admixture of calcium carbonate and an organic carboxylic acid.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: November 10, 1987
    Assignee: Rhone-Poulenc Chimie
    Inventors: Claude Millet, Paul Rostaing