Patent ID: 8765870

Claim:
A fluorine-containing silicone coating composition, said composition comprising: a fluorine-containing silicone coating agent which comprises: (i) a fluorine-containing organosiloxane represented by the following formula: wherein R 1 is a non-substituted or substituted monovalent hydrocarbon group having 1 to 10 carbon atoms except aliphatic unsaturated groups, R 2 is an alkenyl group having 2 to 10 carbon atoms, a is 1, 2 or 3, x is an integer of 0 or larger, y is an integer of 1 or larger, z is an integer of 0 or larger, and R f is at least one group selected from the groups represented by the following formulas (1) to (4): wherein n is an integer of from 1 to 5, which contains 20 to 40 wt % of fluorine atoms, based on weight of the organosiloxane, (ii) an organohydrogenpolysiloxane having at least three SiH bonds per molecule, and (iii) a catalyst comprising a platinum group metal and a diluent which comprises: (A) at least one member selected from the group consisting of diisopropyl ether and hexane, and (B) a fluorinated solvent having a boiling point, at atmospheric pressure, which is higher than that of the component (A) by at least 30° C. and is 180° C. or lower, with a weight ratio of the component (A) to the component (B) ranging from 85/15 to 65/35 such that a coating layer formed from the composition is uniform in thickness and has no defects, wherein the organohydrogenopolysiloxane (ii) is represented by the following formula: wherein R 3 is at least one selected from the group defined above for R 1 and R f , b is 0 or 1, p is an integer of 1 or larger, and q is an integer of 0 or larger, provided that p+2b is 3 or larger.