Patents Represented by Attorney W. H. Pittman

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  • Method for providing adherent metal coatings on cyanate ester polymer surfaces
    Patent number: 5286530
    Abstract: Cyanate ester polymer articles, particularly fiber-reinforced, are metallized by electroless deposition preceded by a series of pretreatment steps which improve adhesion of the metal layer or layers. Said steps include aqueous alkali followed by nitric acid treatment. They preferably also include an initial alkaline permanganate treatment, preferably preceded by aqueous alkali.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: February 15, 1994
    Assignee: General Electric Company
    Inventors: Bradley R. Karas, Herbert S. Chao