Patents by Inventor George J. Knight

George J. Knight 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).

  • Flexibilized flame retardant B-staged epoxy resin prepregs and composite laminates made therefrom
    Patent number: 4477512
    Abstract: A prepreg useful as the core in flame resistant cooper clad, composite, printed circuit boards is made by impregnating a porous substrate with an impregnant containing: either a brominated epoxy or epoxy resin and reactive flame retarding additive containing bromine and phenolic hydroxyl groups (e.g., tetrabromobisphenol A), phenolic novolac oligomer as curing agent, unsaturated epoxidized oil, and optionally, a suitable catalyst; and then heating the impregnated substrate to the "B"-stage.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: October 16, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Wilbur R. Thomas, Fred E. Hickman, III, George J. Knight