Radiation-curable organopolysiloxane compositions

Details Radiation-curable organopolysiloxane compositions Radiation-curable organopolysiloxane compositions

C - Chemistry, Metallurgy

08

L

204/91.38

C08L 83/04 (2006.01) C08J 3/28 (2006.01) C08K 5/54 (2006.01) C08K 5/56 (2006.01) C09D 183/04 (2006.01)

Patent

CA 1242164

ABSTRACT OF THE DISCLOSURE The invention provides a silicone-coated release paper having a coating surface film of an organopolysiloxane compo- sition curable by irradiation with ultraviolet light or elec- tron beams to give a fully cured film resistant to migration of the organopolysiloxane constituents therefrom on to other surfaces in contact therewith. The composition comprises (a) a diorganopolysiloxane terminated at both molecular chain ends each with a divinylmethylsilyl group or trivinylsilyl group, (b) an organohydrogenpolysiloxane having at least 2 hydrogen atoms directly bonded to the silicon atoms in a molecule, (c) a catalytic amount of a platinum or rhodium catalyst and, op- tionally, (d) a compound of a rare earth element such as ceric oxide.

457524

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