	US 12,063,933 B1
	Antimicrobial compositions including copper(I) salts and additives
Theresa Chang, Painted Post, NY (US); Johnathan David Jr. Culpepper, Painted Post, NY (US); Huayun Deng, Painted Post, NY (US); and Shu Yuan, Horseheads, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Jul. 20, 2023, as Appl. No. 18/224,348.
Int. Cl. A01N 59/20 (2006.01); A01N 25/08 (2006.01); A01N 25/22 (2006.01)

CPC A01N 59/20 (2013.01) [A01N 25/08 (2013.01); A01N 25/22 (2013.01)]

18 Claims

1. A biocidal composition, comprising:

a carrier;

a copper(I) salt; and

a copper-assisting additive different from the carrier;

wherein the copper(I) salt is copper(I) bromide;

wherein the copper-assisting additive is trimethyl phosphite, triethyl phosphite, tris(2,2,2-trifluoroethyl) phosphite, or any combination thereof;

wherein the copper-assisting additive promotes the persistence and/or availability of copper(I) ions; and

wherein the biocidal composition, a film thereof, or an article thereof exhibits an antimicrobial efficacy of at least 3 log kill as measured with an EPA Test after storage of the biocidal composition or the film or article thereof at ambient temperature and ambient relative humidity for 50 days.