Patents by Inventor Jean-Paul Benhayoun

Jean-Paul Benhayoun 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).

  • Polyester films usable for closures and process for their preparation
    Patent number: 5776592
    Abstract: The present invention relates to polyester films which have properties making them suitable for closures, especially of pots for fresh dairy products such as yoghurts, cheeses or desserts. It therefore consists of polyester films which have a thickness of 5 to 30 micrometers and which satisfy the use test, exhibiting a crystallinity higher than or equal to 50%, tensile strengths in the lengthwise direction (MDTS) and in the diagonal directions (.+-.45 degrees relative to the lengthwise direction) (TS45) which are such that: (MDTS)+(TS45).ltoreq.40 kg/mm.sup.2 (392.4 MPa) and elongations at break in the lengthwise direction (MDEB) and in the diagonal directions (.+-.45 degrees relative to the lengthwise direction) (EB45) which are such that: (MDEB)+(EB45).gtoreq.290%. The invention also relates to a process for the preparation of such films and to their use for closures.
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: July 7, 1998
    Assignee: Rhone-Poulenc Films
    Inventors: Jean-Paul Benhayoun, Alain Marze, Brunot Melquioni