Releasing organopolysiloxane composition comprising (meth)acrylic functional group-containing organopolysiloxanes
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsShunji Aoki, Shinji Irifune, Takafumi Sakamoto
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Abstract
A radiation-curable, releasing silicone composition which comprises an organopolysiloxane having methacrylic or acrylic functional groups and represented by the following general formula ##STR1## In the formula, A represents a monovalent hydrocarbon group having a methacrylic or acrylic moiety, R's independently represent an unsubstituted or substituted monovalent organic group, a is an integer of 1, 2 or 3, b is an integer of 2 or 3, and n is an integer of 1 or over. The organopolysiloxane has a viscosity of from 50 to 2,000 cps., at 25.degree. C. The composition exhibits good releasing properties with respect to self-adhesives.
Claims30
A radiation-curable releasing silicone composition consisting essentially of an organopolysiloxane having methacrylic or acrylic functionality and represented by the following general formula:
- ##STR17## wherein A represents a monovalent hydrocarbon group having a methacrylic or acrylic moiety and having from 4 to 10 carbon atoms, R's independently represent an unsubstituted or substituted monovalent organic group, a is an integer of 1, 2 or 3, b is an integer of 2 or 3, and n is an integer of 1 or over, said organopolysiloxane having a viscosity of from 50 to 2,000 cps., at 25.degree. C., whereby when cured, the resultant cured product has good release properties against self-adhesives.
Dependencies are inferred from the claim text.