Patents by Inventor Jean-Pierre Lascombe

Jean-Pierre Lascombe 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).

  • Heat-reversible polymers with nitroxide functions
    Publication number: 20030139536
    Abstract: The invention concerns a method for preparing resins branched or crosslinked by heat treatment with a polymer in the presence of a multinitroxide and optionally a free radical initiator, to obtain a resin exhibiting properties of beat reversibility. The initial polymer can be a rubber or a thermoplastic polymer. The resins obtained provide conditions for use similar to those of the initial polymers while exhibiting enhanced mechanical properties.
    Type: Application
    Filed: January 13, 2003
    Publication date: July 24, 2003
    Inventors: Denis Bertin, Ludovic Dumont, Jean-Pierre Lascombe, Martin Baumert, Olivier Guerret, Christian Laurichesse
  • Method for preparing nitroxides
    Patent number: 6538141
    Abstract: The invention concerns a method for preparing nitroxides, which consists in oxidising, in a two-phase medium, using an aliphatic peroxide, secondary amines with steric hindrance or having a —CH in the nitrogen atom &agr;.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 25, 2003
    Assignee: Atofina
    Inventors: Jean-Philippe Gillet, Olivier Guerret, Jean-Pierre Lascombe