Patent ID: 7579289

Claim:
A curable composition comprising: (i) one or more polyacid comprising at least two carboxylic acid groups, anhydride groups, or salts thereof; (ii) one or more polyol comprising at least two hydroxyl groups; (iii) one or more reactive waterproofing agent chosen from a C 5 to C 30 alk(en)yl monocarboxylate of a (poly)alkoxylated trihydric polyol, C 5 to C 30 alk(en)ylamine (poly)alkoxylate, C 5 to C 30 alk(en)yl diamine (poly)alkoxylate, C 5 to C 30 alk(en)ylamine (poly)alkoxylate containing an ether or thiother group in the alk(en)ylamine group, and mixtures thereof; and (iv) optionally, one or more phosphorous-containing accelerator, wherein the ratio of the number of equivalents of said carboxylic acid groups, anhydride groups, or salts thereof to the number of equivalents of said hydroxyl groups is from 1/0.01 to 1/3, further wherein, when the said one or more reactive waterproofing agent (iii) is chosen from a C 5 to C 30 alk(en)ylamine (poly)alkoxylate, C 5 to C 30 alk(en)yl diamine (poly)alkoxylate, and a C 5 to C 30 alk(en)ylamine (poly)alkoxylate containing an ether or thiother group in the alk(en)ylamine group, the said one or more polyacid (i) is chosen from a polyester containing at least two carboxylic acid groups, a polybasic acid, a polybasic acid salt, a polybasic anhydride, an oligomer of a polybasic acid, a salt of an oligomer of a polybasic acid, an oligomer of a polybasic anyhydride, a polymeric polyacid formed by polymerizing at least one ethylenically unsaturated carboxylic acid-functional monomer reactant in the amount of 25 wt. % or more, based on the total weight of the monomer reactants in the polyacid, a polymeric polyacid formed by polymerizing at least one ethylenically unsaturated carboxylic anhydride-functional monomer reactant in the amount of 25 wt. % or more, based on the total weight of the monomer reactants in the said polyacid, and salts thereof.