Patents by Inventor Robert L. Visger

Robert L. Visger 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).

  • High flexural modulus reaction injection molded urethanes
    Patent number: 4341875
    Abstract: A two-part liquid composition capable of being mixed with a foaming agent and placed in a reaction injection molding apparatus to form a microcellular composition, which when cured yields a urethane product having improved flexural modulus properties. The composition is comprised of a part "A" which is comprised of an organic isocyanate, and a part "B" which is comprised of a base polyol, a catalyst, and a chain extending agent mixture comprised of a glycol and at least one high functionality supplemental polyol.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: July 27, 1982
    Assignee: Olin Corporation
    Inventors: Robert L. Visger, Mark A. Plano