Patents by Inventor Alan A. Shaffer

Alan A. Shaffer 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).

  • Fluoroalkyleneether silicate copolymers
    Patent number: 4140727
    Abstract: Fluoroalkyleneether silicate copolymers are synthesized by the polycondensation of a bis-dimethylcarbinol containing a fluoroalkyleneether segment and bis-(dimethylamino) methylvinylsilane. The copolymers are useful in applications, e.g., as seals and sealants, involving use temperatures ranging from about -90.degree. C. to 600.degree. C. They are particularly useful when blended with a fluorocarbon elastomer, enhancing the strength and low temperature flexibility of the elastomer.
    Type: Grant
    Filed: January 10, 1978
    Date of Patent: February 20, 1979
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Robert E. Cochoy, Alan A. Shaffer