Thermoset compositions based on carboxy polymers and epoxide resins

Claim 1

A FILM FORMING COMPOSITION CAPABLE OF CURING AT ROOM TEMPERATURE WHEREIN THE FILM FORMING COMPONENTS CONSIST ESSENTIALLY OF (A) A CARBOXY CONTAINING COPOLYMER WHICH IS A POLYMERIZATION PRODUCT OF AN ALPHA-BETA MONOETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID HAVING NOT MORE THAN FOUR CARBON ATOMS AND A MONOETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH AND CONTAINING ABOUT 20 TO ABOUT 30 WEIGHT PERCENT CARBOXYLIC ACID BASED ON THE TOTAL COPOLYMER WEIGHT, (B) A POLYEPOXIDE CONTAINING MORE THAN ONE 1,2 EPOXY GROUP PER MOLECULE AND BEING SELECTED FROM AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF GLYCIDYL POLYETHERS OF POLYHYDRIC PHENOLS, GLYCIDYL POLYETHERS OF POLYHYDRIC ALCOHOLS, PLYCIDYL ESTERS OF CARBOXYLIC ACIDS EPOXY ESTERS, AND (C) A CATALYST SELECTED FROM THE GROUP CONSISTING OF AMINES, AMINE SALTS QUENTERNARY AMMONIUM HYDROXIDES AND QUATERNARY AMMONIUM SALTS, WHEREIN (A) AND (B) ARE PRESENT IN THE PROPORTIONS OF CARBOXY EQUIVALENT TO ABOUT 0.7 TO 2 EPOXY EQUIVALENTS AND WHEREIN (C) IS PRESENT IN THE AMOUNT OF 0.1 TO 2 WEIGHT PERCENT BASED ON THE SUM OF THE WEIGHTS OF (A) AND (B).