Patents by Inventor Jean-Noel Bertrand

Jean-Noel Bertrand 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).

  • Polymer compositions
    Patent number: 4525533
    Abstract: A polymer composition is disclosed which comprises polystyrene, polypropylene and a sequenced copolymer of conjugated diene and vinylaromatic compound such as styrene which has a radial structure. The polymer composition has improved migration properties.
    Type: Grant
    Filed: March 27, 1984
    Date of Patent: June 25, 1985
    Assignee: Montefina, S.A.
    Inventors: Jean-Noel Bertrand, Jean Castelein