Compositions of high solids content comprising carboxylic polymer and aliphatic diepoxide

A high solids composition comprising (I) from 10 to 60 weight percent of a low molecular weight carboxylic-containing copolymer and (II) from 40 to 90 weight percent of an aliphatic polyepoxide, said percentages based on the combined weights of (I) and (II);

• and wherein said low molecular weight copolymer (I) has a molecular weight of from about 500 to about 10,000 and is the copolymer of (A) a monocarboxylic acid or dicarboxylic acid of the structure:
• ##STR3## wherein Z is hydrogen or methyl or carboxymethyl;
• R is hydrogen or methyl and R' is hydrogen or carboxyl;
• and (B) from 30 to 80 weight percent of a polymerizable ethylenically unsaturated monomer whose polymers have a glass transition temperature below 0.degree. C.