Patents by Inventor Winfred E. Weldy

Winfred E. Weldy 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).

  • Elimination of bloom in [vul-cup] peroxide crosslinked elastomer compounds
    Patent number: 4268637
    Abstract: Disclosed are nonblooming, crosslinkable compositions comprising crosslinkable elastomer, a peroxide crosslinker selected from .alpha.,.alpha.'-bis(t-butylperoxy) meta-diisopropylbenzene, .alpha.,.alpha.'-bis(t-butylperoxy) para-diisopropylbenzene and mixtures thereof, and phthalic anhydride.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: May 19, 1981
    Assignee: Hercules Incorporated
    Inventor: Winfred E. Weldy
  • Unsaturated epoxides as coupling agents for carbon fibers and unsaturated matrix resins
    Patent number: 4163003
    Abstract: The adhesion between carbon fibers and unsaturated matrix resins used in the preparation of composite structures is improved by the use of an unsaturated epoxide bifunctional coupling agent. The coupling agent can be applied to the carbon fibers or incorporated into the matrix resin system.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: July 31, 1979
    Assignee: Hercules Incorporated
    Inventors: James T. Paul, Jr., Winfred E. Weldy
  • Sized carbon fibers
    Patent number: 3957716
    Abstract: Carbon fibers are coated with a sizing composition comprising a polyglycidyl ether, cycloaliphatic polyepoxide or their mixtures. Preferred sizes are mixtures of a liquid diglycidyl ether or bisphenol A and a solid diglycidyl ether of bisphenol A.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: May 18, 1976
    Assignee: Hercules Incorporated
    Inventor: Winfred E. Weldy