Patents by Inventor Anna Elzbieta Kowalewska

Anna Elzbieta Kowalewska 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).

  • Diacetylenic polyorganosiloxanes, intermediates therefor, and cured compositions prepared therefrom
    Patent number: 6271280
    Abstract: Intermediate compositions comprising ethynylorgano polyorganosiloxanes are prepared by hydrosilylation of an olefinic hydroxy compound followed by reaction with a propargyl halide, or by hydrosilylation of a diethynyl compound. The intermediate compositions may be oxidatively coupled to form poly(conjugated diacetylenic)polyorganosiloxanes. The latter may be cured thermally or by radiation to form cured compositions useful as release coatings or conformal coatings.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: August 7, 2001
    Assignee: General Electric Company
    Inventors: Sylvie Louise Boileau, Anna Elzbieta Kowalewska, Laurent Bouteiller, Matthew David Butts, Slawomir Rubinsztajn