US 11,932,833 B2
Stable activated peroxide sanitizing liquid compositions without added phosphorous compounds or cationic surfactants
Nancy A. Falk, Pleasanton, CA (US); Timothy P. Mui, Pleasanton, CA (US); Evan Rumberger, Pleasanton, CA (US); Xuanrong Guo, Pleasanton, CA (US); Fanny Frausto, Pleasanton, CA (US); Michael Capracotta, Florham Park, NJ (US); Dennys D. Pena Calderon, Pleasanton, CA (US); David R. Scheuing, Danville, CA (US); Claire E. J. Dentinger, Pleasanton, CA (US); Stephen F. Gross, Florham Park, NJ (US); Nicholas S. Norberg, San Ramon, CA (US); and Shakera Thamanna, Florham Park, NJ (US)
Assigned to THE CLOROX COMPANY, Oakland, CA (US)
Filed by THE CLOROX COMPANY, Oakland, CA (US)
Filed on Feb. 16, 2022, as Appl. No. 17/673,191.
Claims priority of provisional application 63/150,812, filed on Feb. 18, 2021.
Prior Publication US 2022/0259523 A1, Aug. 18, 2022
Int. Cl. C11D 3/39 (2006.01); C11D 1/722 (2006.01); C11D 3/00 (2006.01); C11D 3/22 (2006.01); C11D 3/34 (2006.01); C11D 17/00 (2006.01)
CPC C11D 3/3937 (2013.01) [C11D 1/722 (2013.01); C11D 3/0047 (2013.01); C11D 3/222 (2013.01); C11D 3/3409 (2013.01); C11D 17/0008 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A liquid antimicrobial laundry treatment composition that is stabilized without the use of phosphorus-containing components, the composition consisting of:
(a) about 0.1% to about 10% by weight of a peroxide;
(b) about 0.5% to about 2′ by weight, of an alkanoyl oxybenzene sulfonate peroxide activator;
(c) about 2% to about 10% by weight of a nonionic alkoxylated alcohol surfactant with a cloud point above about 45° C.;
(d) about 0.05% to about 0.5% by weight of an anionic surfactant;
(e) an organic or inorganic acid pH adjusting agent;
(f) at least about 85% by weight water;
(g) wherein the composition has a pH of about 5 or less;
(h) optionally, one or more of a polysaccharide gum thickener that is stable in acidic conditions, an optical brightener, a polymeric suspension agent, an enzyme, a dye, colorant or pigment, a fragrance or perfume, a solvent, a co-surfactant, a hydrotrope, a stain and soil repellant, a lubricant, a solubilizing agent, a stabilizer, a defoamer, a preservative, or a buffer;
(i) wherein the composition provides at least about a 3 log reduction against a bacterial population when used “through the wash”; and
(j) wherein the composition provides at least about 80% peroxide stability over a period of at least about 6 months.