Patents by Inventor Didier Roumilhac

Didier Roumilhac 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).

  • Multilayer structure comprising a material covered with a copolymer having polyamide blocks and hydrophilic blocks
    Patent number: 6420045
    Abstract: The present invention relates to a multilayer structure comprising a material covered with a copolymer having polyamide blocks and hydrophilic blocks where the copolymer has a melting point of less than 135° C.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: July 16, 2002
    Assignee: Atofina
    Inventors: Heike Faulhammer, Yves Aubert, Thierry Briffaud, Hermann Josef Hilgers, Didier Roumilhac
  • Flexible thermoplastic resins having improved tensile strength
    Patent number: 6281287
    Abstract: The invention relates to a thermoplastic composition comprising at least one polymer (M) forming a matrix in which are dispersed at least one polymer (S) and at least one polymer (K) and such that its tensile strength is greater than that of a composition comprising only (M) and (S), the proportion by weight of (M) being the same.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 28, 2001
    Assignee: Atofina
    Inventors: Thibaut Montanari, Chrystelle Guibouin, Marius Hert, Patrice Perret, Jacques Thomasset, Didier Roumilhac
  • Flexible thermoplastic resins with improved tensile strength
    Patent number: 6121374
    Abstract: The invention relates to a thermoplastic composition comprising at least one polymer (M) forming a matrix in which are dispersed at least one polymer (S) and at least one polymer (K) and such that its tensile strength is greater than that of a composition comprising only (M) and (S), the proportion by weight of (M) being the same.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: September 19, 2000
    Assignee: Elf Atochem SA
    Inventors: Thibaut Montanari, Chrystelle Guibouin, Marius Hert, Patrice Perret, Jacques Thomasset, Didier Roumilhac