Patent ID: 7268172

Claim:
A non-aqueous composition, which contains no ethylenically unsaturated monomer, and which comprises A) from about 1 to about 99% by weight of an unsaturated (meth)acrylate polymer or oligomer selected from the group consisting of: a) an unsaturated urethane (meth)acrylate polymer or oligomer, which has an isocyanate group content of 1% by weight or less and is prepared by reacting: ai) one or more organic polyisocyanates, and aii) an unsaturated (meth)acrylate selected from the group consisting of 1) from 0 to 100% by weight of an unsaturated polyether (meth)acrylate polyol having an OH number of from about 30 to about 500, and prepared by reacting an aliphatic polyether di- or polyol with acrylic and/or methacrylic acid, and 2) from 0 to about 100% by weight of a mono-, di-, tri- or poly-hydroxyl-C 1 -C 10 -alkyl or C 6 -C 10 -aryl (meth)acrylate, wherein the percents by weight of components aii)1) and aii)2) are based on the total weight of components aii)1) and aii)2 and total 100%, at an isocyanate to hydroxyl equivalent ratio of from about 0.95:1 to about 1:0.95, b) an unsaturated polyether (meth)acrylate polyol having an OH number of from about 30 to about 100, and prepared by reacting a polyether di- or polyol with acrylic and/or methacrylic acid, and c) mixtures thereof, B) from about 1 to about 99% by weight of an unsaturated epoxy (meth)acrylate which is substantially free from epoxide groups and is prepared by reacting bi) one or more organic compounds containing at least one epoxide group and having a number average molecular weight of from about 130 to about 1000, bii) from 1.3 to 3.0 carboxy equivalents of organic dicarboxylic acid or anhydride having a number average molecular weight of from about 98 to about 166, biii) 1 hydroxy equivalent of an hydroxyl group containing reaction product, prepared at a carboxy to hydroxyl equivalent ratio of from 0.6:1 to 0.95:1 of 1) (meth)acrylic acid and 2) tri- or tetrahydroxy ether alcohols having a number average molecular weight of from about 180 to about 1000 and containing at least two ethylene and/or propylene oxide units as part of an ether structure, with the ratio of reactive equivalents of components bii) through biii) to epoxide equivalents of component bi) being at least about 1:1, C) from about 0.1 to about 10% by weight of one or more photoinitiators, wherein the % by weight of component C) is based on the combined weight of components A) and B) and wherein the percentages of components A) and B) total 100%, and D) from 0 to about 90% by weight of solvent or a mixture of solvents, wherein the % by weight of component D) is based on the total combined amount of components A) and B).