Patents by Inventor Fredric D. Metcalf

Fredric D. Metcalf 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).

  • EPDM laminate
    Patent number: 4601935
    Abstract: Cured rubbery carbon black reinforced EPDM roofing membranes are joined at their primed seams by a seaming tape comprising a carbon black reinforced compounded lightly cured blend of a butyl rubber and a polyisobutylene. The tape can exhibit a peel strength of at least about 2.5 pli at about 158.degree. F.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: July 22, 1986
    Assignee: GenCorp Inc.
    Inventors: Fredric D. Metcalf, John G. Sommer
  • Polyethylene-EDPM compositions
    Patent number: 4128523
    Abstract: Blends of low molecular weight crystalline polyethylene and crystalline EPDM polymers exhibit good processing and on curing show unexpected high flexural modulus. The addition of reinforcing agents will raise the modulus and other physical properties but the processability can remain satisfactory.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: December 5, 1978
    Assignee: The General Tire & Rubber Co.
    Inventors: James E. Britton, Fredric D. Metcalf, John G. Sommer, Tiong H. Kuan, Victor R. Rilling, John A. Welch