Patents Represented by Attorney Joseph A. DeGrandi

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  • 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