Patent ID: 7128977

Claim:
A release sheet comprising a substrate and a cured coating formed on the substrate, wherein the substrate is selected from the group consisting of paper, synthetic resin film and synthetic fiber fabric, and wherein the cured coating is formed from a silicone coating composition consisting essentially of as essential components, (A-1) 100 parts by weight of an organopolysiloxane having at least two alkenyl groups each directly attached to a silicon atom in a molecule, represented by the average compositional formula (i): R 1 a R 2 b SiO (4-a-b)/2 (i) wherein R 1 is independently a substituted or unsubstituted monovalent hydrocarbon group exclusive of alkenyl groups, R 2 is an alkenyl group, a and b are numbers: 0≦a≦3, 0<b≦3 and 1≦a+b≦3, (B-1) an organohydrogenpolysiloxane having at least three hydrogen atoms each directly attached to a silicon atom (i.e., SiH groups) in a molecule, represented by the average compositional formula (ii): R 1 c H d SiO (4-c-d)/2 (ii) wherein R 1 is as defined above, c and d are numbers: 0≦c≦3, 0<d ≦3 and 1≦c+d≦3, in such an amount that the moles of silicon-bonded hydrogen atoms is 1 to 5 times the moles of alkenyl groups in component (A-1), (C) 5 to 150 parts by weight of a silicone rubber fine powder having an average particle size of 0.5 to 20 μm, and (D-1) a catalytic amount of an addition reaction catalyst.