SILICONE-BASED RELEASING COATING COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain the subject composition capable of giving a releasing coating material quickly curing on a heat sensitive base material at low temperature by compounding an alkenyl-functionalized organosiloxane, an organic silicon hydride compound, a platinum group metal catalyst and a specific silylated acetylene-based suppressing agent. SOLUTION: This composition is obtained by compounding (A) a compound of the formula: R<1> 3 SiO(R<2> SiO)x (RR<1> SiO)y SiR<1> 3 [R is a monovalent 1-20C (halo) hydrocarbon free from an aliphatic unsaturated group; R<1> is R or vinyl; (x)=0-7000; (y)=0-350; 2 or more alkenyl groups are contained in every molecule], a compound of the formula: R<1> 3 SiO(R2 SiO)x SiR<1> 3 or a compound of the formula R<1> 3 SiO(RR<1> SiO)y SiR<1> 3 , (B) an organo-hydrogen-silicon compound, (C) a platinum group metal catalyst, (D) a compound of formula I (R<2> is H, R or an alkenyl; Q is a divalent hydrocarbon having a carbon number of 2 or more; every molecule has H or an alkenyl bonded to Si), a compound of formula II or a compound of formula III, and (E) an arbitray diluent.