Patent ID: 7619017

Claim:
An aqueous surfactant stabilized polymer emulsion composition resistant to biodeteriogenic microbe contamination comprising an aqueous polymer emulsion combined with a cationic compound and an ethylenediamine acid compound having the structure: wherein R 1 , R 2 , and R 3 are, independently, H, a C 1 -C 12 alkyl, a —(CH 2 ) 1-8 COOH; or a mono-, di-, tri- or tetra-salt of an ethylenediamine acid compound of the above structure; wherein the mono-, di-, tri-, or tetra-salt of the ethylenediamine acid compound is selected from the group consisting of an alkali metal salt, an alkaline earth metal salt, an ammonium salt or an ammonium derived salts having the structure: wherein R 4 , R 5 , R 6 , and R 7 are independently, H or C 1-12 alkyl; provided the salt is soluble in water; and the cationic compound is selected from the group consisting of a substituted pyridinium salt, a tetraalkylsubstituted ammonium salt, a polymeric biguanide, a biguanide, a polymeric cationic compound, a benzalkonium derivative, and mixtures thereof; wherein the substituted pyridinium salt is substituted with an alkyl, a cycloalkyl, or an aryl group containing 2 to 18 carbons, and each alkyl group in the tetraalkylsubstituted ammonium compound independently contains 1 to 18 carbons, said polymer emulsion containing one or more surfactants or one or more surfactants and anionic constituents; the surfactants selected from the group consisting of anionic surfactants and nonionic surfactants.