Patents by Inventor Gary L. Duncan

Gary L. Duncan 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).

  • Maleic anhydride-modified polymer lager coated with polymeric composition derived from vinylidene chloride
    Patent number: 4064315
    Abstract: Polypropylene resins compounded with a maleated polyolefin (e.g., polyethylene or polypropylene) provide film compositions having improved adhesion to polyvinylidene chloride coatings and resistance to the deleterious effect of moisture upon adhesion thereby avoiding need of a primer coat. Specific embodiments include biaxially oriented polypropylene film made from polypropylene compounded with such a maleated polyolefin and directly coated with a polyvinylidene chloride coating.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: December 20, 1977
    Assignee: Mobil Oil Corporation
    Inventors: David A. Bivans, Gary L. Duncan