Patents by Inventor Philippe De Cambourg

Philippe De Cambourg 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).

  • Multi-layer film
    Patent number: 5565250
    Abstract: A multi-layer film comprising a thermoplastic barrier layer, and a seal layer. The seal layer being an ethylene copolymer, having in the range of from about 5 to about 12 mol percent of a comonomer selected from the group consisting of vinyl acetate, ethyl acrylate, methyl acrylate and butyl acrylate. The multi-layer film is RF weldable in the range of from about 10 to about 50 MHz to form a non-peelable seal and where the seal layer has an anti-block matted surface.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: October 15, 1996
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Stefan B. Ohlsson, Philippe De Cambourg, Willy J. J. Leysen
  • Multi-layer film
    Patent number: 5399396
    Abstract: Multi-layered films are disclosed which have a barrier layer and at least one seal layer. The seal layer is made with a copolymer of ethylene and ethylenically unsaturated ester. The seal layer is radio frequency (RF) sealable and the seal layer has an anti-block matted surface. The matted seal layer surface permits a lower slip and anti-block additive level which improves RF sealing and heat sealing.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: March 21, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Stefan B. Ohlsson, Philippe De Cambourg, Willy J. J. Leysen