Patents by Inventor J. Robert Crossan

J. Robert Crossan 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).

  • Thermoplastic molding composition
    Patent number: 4560727
    Abstract: A thermoplastic molding composition having high impact strength and improved oxidation stability composes a physical blend, in defined proportions, of polystyrene, a hydrogenated styrene-diene block copolymer and low density polyethylene, together with a process for preparing such compositions.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: December 24, 1985
    Assignee: Shell Oil Company
    Inventor: J. Robert Crossan