Aqueous release coating compositions

Claim 1

An aqueous release composition comprising (1) a release polymer formed by a polymerizing in parts by weight of (a) from about 40 to about 80 parts of a higher alkyl acrylate ester represented by the formula ##STR2## wherein R' is hydrogen or methyl, and R" is a straight chain hydrocarbon radical of from about 12 to 24 carbon atoms, (b) from about 5 to about 30 parts of a carboxyl supplying monomer selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, maleic anhydride, half esters of maleic acid, itaconic acid and fumaric acid, (c) from about 10 to about 45 parts of an acrylate derived hardening monomer selected from the group consisting of acrylonitrile, methacrylonitrile, methyl acrylate, ethyl acrylate, methyl methacrylate and ethyl methacrylate; (2) a base; (3) a polar solvent wetting agent, said solvent being employed in an amount less than about 25 percent of the volatile portion of the ultimate composition; and (4) a water-soluble thickening agent said thickening agent being present in such amounts that the viscosity of the release composition does not exceed about 200 centipoises.