Patents by Inventor Paul Heinig

Paul Heinig 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).

  • Graft polybutadiene-styrene interpolymers and process for making same
    Patent number: 3996311
    Abstract: Graft interpolymers are provided which comprise the polymerization product of a polybutadiene having a cis butadiene content of at least 25 percent and a 1,2-addition butadiene content of not more than about ten percent and of a vinyl aromatic monomer. Processes for their production are also provided. These graft interpolymer compositions are useful in molding many consumer articles such as containers, refrigerator liners, sheet, trays, etc.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: December 7, 1976
    Assignee: Foster Grant Co., Inc.
    Inventors: Richard C. Westphal, Paul Heinig