Patents by Inventor Norman J. Pinkowski

Norman J. Pinkowski 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 copolymer on butadiene-piperylene elastomer
    Patent number: 4065444
    Abstract: Elastomeric butadiene-piperylene copolymers in which the butadiene is mainly in high cis-1,4-addition, low vinyl configuration, prepared in solution using iodine-containing catalyst based on organomagnesium compound and titanium tetrahalide. Graft copolymers of resin-forming monomers (e.g., styrene, acrylonitrile) on the butadiene-piperylene elastomer have good low temperature impact strength.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: December 27, 1977
    Assignee: Uniroyal, Inc.
    Inventors: Edward A. Delaney, Norman J. Pinkowski, Walter Nudenberg