Organopolysiloxane coating compositions

Claim 1

A fast-curing resin coating composition comprising: (i) 10-25 parts of an epoxy resin of molecular weight 50,000 to 200,000, (ii) 1-3 parts of an etherified resol phenolic resin, (iii) 1-3 parts of a silicone fluid comprised of methylphenylsiloxanes, dimethylsiloxanes and diphenyldemethylsiloxanes, (iv) 12-20 parts of an organopolysiloxane release resin prepared by (a) agitating a mixture comprising (A) an organohalosilane blend consisting essentially of about 60 mole percent methyltrichlorosilane, about 35 mole percent phenyltrichlorosilane, and about 5 mole percent dimethyldichlorosilane, (B) water, (C) acetone, and (D) a water-immiscible organic solvent, wherein there is present by weight in said mixture per part by weight of (A), about 1.7 to about 10 parts of (B), about 0.2 to about 5 parts of (C), and about 0.3 to about 5 parts of (D); and (b) separating the organic solvent solution of (F) from the resulting hydrolysis mixture of a step (i), wherein (F) is a silanol-containing organopolysiloxane resin having an average ratio of about 1.05 organic radicals per silicon atom, (vi) a catalytic amount of an zinc-iron organometallic curing agent, in a (vii) suitable solvent, all of the parts being parts by weight.