Patent ID: 11932778
Assignee: ROHM AND HAAS COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 10:
11. An antimicrobial coating composition comprising (i) a polymer emulsion of a copolymer and (ii) from 20 ppm to 6000 ppm, by dry weight based on total dry weight of the coating composition, a silver, wherein the copolymer comprises, as polymerized units, (a) ethylenically unsaturated nonionic monomers, and (b) from 0.01% to 2%, by dry weight based on total dry weight of the polymer emulsion, heterocyclic group-containing monomers and wherein the mole ratio of heterocyclic groups in the heterocyclic group-containing monomers to silver is at least 4, and (iii) one or more pigment, one or more extender, or both one or more pigment and one or more extender in amount of 10 to 75% pigment volume concentration, and optionally (iv) oxidant in amounts of 0.004 to 10% by dry weight of the coating composition, wherein the amount of the polymer emulsion of the copolymer makes up the remainder of the dry weight of the coating composition.