Patent ID: 7399818

Claim:
A curable composition comprising: (a) a polyacid copolymer comprising as polymerized units, a monomer comprising carboxylic acid groups, anhydride groups, or salts thereof, and from about 3 to about 25 weight percent, based on the total weight of polymerized monomers in the curable composition, of an ethylenically unsaturated monomer having a solubility of less than 2 g/100 g of water at 25° C., which ethylenically unsaturated monomer is selected from the group consisting of ethyl (meth)acrylate, methyl methacrylate, butyl (meth)acrylate, styrene, α-methyl styrene, mono-alkyl (meth)acrylamide, and di-alkyl (meth)acrylamide; and (b) a hydroxyl group-comprising compound bearing at least two hydroxyl groups as an independent compound or incorporated into the said polyacid copolymer backbone; wherein the ratio of the number of equivalents of the said carboxylic acid groups, anhydride groups, or salts thereof to the number of equivalents of the said hydroxyl groups is from about 1/0.01 to about ⅓.