Silicone release coating composition and low release force emulsion silicone release coating for films and papers having cured release coating

摘要

A silicone release coating composition comprises:(A) 100 weight parts of an organopolysiloxane fluid having a viscosity at 25° C. of 50 to 10,000 mPa·s and an alkenyl content of 0.10 to 3.0 wt %;(B) 0.5-40 weight parts of a diorganopolysiloxane represented by the average structural formula (1):R^c₃SiO(R^bR^cSiO_2/2)_n1(R^c₂SiO_2/2)_n2SiR^c₃  (1) wherein R^b is an alkenyl group; R^c is an alkyl group or a phenyl group; n1 provides an alkenyl content of 0.05 to 0.80 wt. %; n2 is at least 1; and n1+n2 provides this component with a viscosity at 25° C. of 5,000 to 150,000 mPa·s;(C) an organohydrogenpolysiloxane that has a viscosity at 25° C. of 1 to 1,000 mPa·s, at least two silicon-bonded hydrogen atoms in each molecule, and an alkyl group or a phenyl group for its silicon-bonded organic groups;(D) a hydrosilylation reaction catalyst in a catalytic amount;(E) a surfactant;(F) water; and(G) an inhibitor.