Coating composition containing a reactive urethane component an acrylic fatty acid drying oil resin and a metallic alkylate

Claim 1

A coating composition containing about 10-80% by weight of a film forming binder and about 20-90% by weight of an organic solvent; wherein the binder consists essentially of about (1) 5-38% by weight, based on the weight of the binder, of a reactive component of the formula ##STR7## where R is a divalent or trivalent aliphatic or cycloaliphatic group, R 1 is an alkyl group having 1-4 carbon atoms n is 2-3; (2) 60-94.99% by weight, based on the weight of the binder of a hydroxy containing acrylic polymer having drying oil fatty acid moieties and a hydroxyl number of 20-200, said polymer having a weight average molecular weight of about 5,000 to 20,000 and having a backbone of polymerized ethylenically unsaturated monomers, hydroxy alkyl acrylate or methacrylate monomers and glycidyl acrylate or methacrylate monomers and side chains attached to the backbone of drying oil fatty acids being reacted with glycidyl groups of the backbone (3) 0.01-2.0% by weight, based on the weight of the binder, of an organo metallic catalyst selected from the group consisting of aluminum alkylate, titanium alkylate, zirconium alkylate and mixtures thereof; said composition being cureable at ambient temperatures without the formation of free isocyanate groups during curing.