Addition-curable organopolysiloxane composition, release paper and release film

Abstract

One of the purposes of the present invention is to provide an addition-curable organopolysiloxane composition which cures sufficiently with a minor amount of platinum group metal catalyst to exert satisfactory adhesion and provides a cured film having a release force comparable to the prior art cured film, and to provide an addition-curable organopolysiloxane composition which allows the sufficient progress of addition cure even on a substrate comprising a catalyst poison component so as to be suitable for providing a release coating for silicone rubber and release paper or release film. That is, the present invention provides an addition-curable organopolysiloxane composition comprising components (A) to (C): (A) an organopolysiloxane having two or more alkenyl groups each bonded to a silicon atom per molecule and having 0.01 to 2.9, as an average, (meth)acrylic groups, (B) an organohydrogenpolysiloxane having two or more hydrogen atoms each bonded to a silicon atom per molecule in such an amount that a ratio of the number of Si—H groups in component (B) to the number of alkenyl groups in component (A) is 1 to 5, and (C) a platinum group metal catalyst in an amount that a platinum group metal amount is 1 to 100 ppm by mass based on a total mass of the composition.