Patents by Inventor Gerald H. Warnken

Gerald H. Warnken 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).

  • Epoxy resin powder including ethylene vinyl acetate
    Patent number: 4009224
    Abstract: Stable, free-flowing epoxy resin powder which fuses to and cures upon striking an object which has been preheated to the curing temperature of the composition to provide a tough protective coating. The composition of the powder differs from the prior art in that it includes 3-30 parts of a copolymer of 2-50% vinyl acetate and 5-75% ethylene per 100 parts of the epoxy resin. The copolymer improves the flexibility of the cured coatings.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: February 22, 1977
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Gerald H. Warnken