Patents by Inventor Ralph D. Allen

Ralph D. Allen 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).

  • Elastomeric composition
    Patent number: 4960829
    Abstract: Blends comprised of (A) a high molecular weight elastomeric polymer; (B) a sufficient amount of an ethylene/alphaolefin/nonconjugated polyene terpolymer having a number average molecular weight of between about 1,000 and about 15,000 such that the variety of the blend is at least about 5% lower than the viscosity of component (A) alone, and (c) a curative, exhibit increased processability, and, when cured, exhibit unexpectedly desirable tensile strength, ozone resistance and oil resistance.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: October 2, 1990
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Ralph D. Allen, Seshan Thiruvengada, Frank C. Cesare, Harry D. Visser