Patents Represented by Attorney M. R. Warfield

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  • Addition cured silicone pressure sensitive adhesive
    Patent number: 4988779
    Abstract: Compositions curable to pressure sensitive adhesives are disclosed which comprise from 30 to 50 parts of a vinyl endblocked polydiorganosiloxane fluid having a viscosity from 500 to 10,000 centipoise at 25.degree. C., from 50 to 70 parts of a benzene soluble resin copolymer havingR.sub.3 SiO.sub.1/2 units and SiO.sub.4/2 units,an organopolysiloxane having silicon bonded hydrogen atoms for the purpose of curing the composition and developing the PSA properties, and a platinum catalyst for the curing process.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: January 29, 1991
    Assignee: General Electric Company
    Inventors: George F. Medford, Donald S. Johnson