Patent ID: 7417086

Claim:
A method of making an aqueous composition, suitable when dry as a coating, comprising (a) providing at least one aqueous polymer that has a glass transition temperature from −80° C. to 110° C., wherein said aqueous polymer is made by aqueous emulsion polymerization of a monomer mixture that excludes all dienes and that comprises 1% to 99% acrylate monomers, by weight based on the total weight of all monomers, (b) adding to said aqueous polymer at least 10 ppm of at least one coordinating agent, by weight based on the dry weight of said at least one polymer, and (c) raising the pH of said aqueous polymer from 7 or less to above 7, wherein said aqueous composition contains 0 to 100 ppm ammonia compound, by weight based on the dry weight of said at least one polymer.