Patents by Inventor Kenneth H. Whitlock

Kenneth H. Whitlock 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).

  • Elastomer blend
    Patent number: 4124653
    Abstract: An elastomeric blend of (A) a butadiene/acrylonitrile copolymer and (B) a copolyetherester consisting essentially of 15-95% by weight of short chain ester units derived from a dicarboxylic acid and having a molecular weight not greater than 300 and a diol having a molecular weight not greater than 250, and 5-85% by weight of long chain ester units derived from a dicarboxylic acid having a molecular weight not greater than 300 and a poly(alkylene oxide)glycol having a number average molecular weight of 400-6000, said copolyetherester having a melting point of at least 100.degree. C; the blend containing from 1-50% by weight of component (A).
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: November 7, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kenneth H. Whitlock