Patents by Inventor Thomas E. Hopton

Thomas E. Hopton 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 sealable polyvinyl chloride films
    Patent number: 7175903
    Abstract: A heat sealable film for use in food packaging comprises a resin composition comprising vinyl chloride homopolymer, vinyl chloride-vinyl acetate copolymer and plasticizer in an amount greater than about 15% by weight of the resin composition. In one embodiment, the film is adapted to provide a controlled oxygen transmission of at least 500 cc/in2/24 hours. The embodiment is also adapted to heat seal on conventional packaging equipment.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: February 13, 2007
    Assignee: Pliant Corporation
    Inventors: Thomas E. Hopton, Carl M. Sullivan, Paul N. Georgelos