Abstract: A silicone composition for release paper or release films which comprises (A) an organopolysiloxane having at least two alkenyl groups in the molecule, (B) an organohydrogenpolysiloxane having, in the molecule, at least three hydrogen atoms each bonded to a silicon atom, (C) a platinum-group metal catalyst, (D) an organic solvent, (E) an ionic compound, and (F) a compound (F-1), which has (f1) and (f3), a compound (F-2), which has (f2) and (f3), or a compound (F-3), which has (f1), (f2), and (f3): (f1) is a group capable of undergoing hydrosilylation; (f2) is a polysiloxane structure; and (f3) is a polyoxyethylene chain.

Abstract: Provided are: an additive reaction-type silicone composition that is for release paper or for a release film, that is non-migratory, and that exhibits light releasability with respect to various adhesives, said silicone composition for release paper or for a release film making it possible to form a cured film that does not adversely affect residual adhesive strength or releasability; and a release paper or a release film obtained by applying the composition to a substrate and curing the result. In a silicone composition for release paper or a release film cured by additive reaction, an organopolysiloxane containing an alkenyl group having a terminal unsaturated bond is used as a base polymer, and a specific amount of an organopolysiloxane that has a lower molecular weight than the base polymer and that contains an alkenyl group having a terminal unsaturated bond is mixed with the base polymer.

Abstract: Provided are: an additive reaction-type silicone composition that is for release paper or for a release film, that is non-migratory, and that exhibits light releasability with respect to various adhesives, said silicone composition for release paper or for a release film making it possible to form a cured film that does not adversely affect residual adhesive strength or releasability; and a release paper or a release film obtained by applying the composition to a substrate and curing the result. In a silicone composition for release paper or a release film cured by additive reaction, an organopolysiloxane containing an alkenyl group having a terminal unsaturated bond is used as a base polymer, and a specific amount of an organopolysiloxane that has a lower molecular weight than the base polymer and that contains an alkenyl group having a terminal unsaturated bond is mixed with the base polymer.