U.V.-radiation method for decreasing surface tack of disposed or

Stock material or miscellaneous articles – Composite – Of silicon containing

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20415913, 427 44, 427 54, 427 58, 427 96, 427407R, 428429, 428448, 428450, 428451, 428452, C08F 3008, C08L 4304

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active

041630823

ABSTRACT:
The surface tack of a silicone gel or grease which is adheringly disposed on a substrate is decreased by coating the surface of the disposed gel or grease with a U.V.-curable organopolysiloxane liquid composition and exposing the coating to ultraviolet light until it is converted to a solid, non-tacky state. The U.V.-curable organopolysiloxane liquid composition comprises a curable mixture of an organopolysiloxane bearing olefinic radicals and an organopolysiloxane bearing silicon-bonded hydrogen radicals and/or silicon-bonded mercaptoalkyl radicals. The cured organopolysiloxane coating is easily penetrated, if desired, to provide access to the tacky silicone.

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patent: 4098840 (1978-07-01), Yoshida et al.
patent: 4107390 (1978-08-01), Gordon et al.
patent: 4116786 (1978-09-01), Hodakowski

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