Patent ID: 6586516
Filing Date: 2003-07-01
Classification: C08L,C09D,Y10T

Abstract:
A coating composition comprising:a) polymer comprising, as polymerized units, from 0.5 percent to 97 percent by weight acetoacetate-functional monomer and from 3 percent to 50 percent by weight acid-functional monomer; wherein the polymer has a glass transition temperature in the range of from âˆ’20Â° C. to 150Â° C.; b) divalent metal ion selected from the group consisting of alkaline earth metals and mixtures thereof in the form of a metal oxide, tetra-amino metal bicarbonate complex, metal complex of an â€”NHâ€” or NH2â€” functional compound, or a metal salt, capable of reacting with the acetoacetate-functional polymer, provided the divalent metal ion is not zinc; and c) at least one wax emulsion selected from polyethylene, polypropylene and mixtures thereof; wherein the molar ratio of acetoacetate-functional monomer to divalent metal ion is in the range of from 20:1 to 2:1; wherein the composition is free of sulfopolyester; wherein the composition is free of amino-functional silane; and wherein the composition has a VOC level of from 0 to 5 percent by weight.