	US 12,077,726 B2
	Cleaning compositions employing extended chain anionic surfactants
Victor Fuk-Pong Man, Saint Paul, MN (US); and Derrick Richard Anderson, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Feb. 3, 2023, as Appl. No. 18/163,926.
Application 18/163,926 is a continuation of application No. PCT/US2018/014381, filed on Jan. 19, 2018.
Application PCT/US2018/014381 is a continuation of application No. 15/411,213, filed on Jan. 20, 2017, granted, now 11,591,546.
Prior Publication US 2023/0183605 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 1/29 (2006.01); C11D 1/37 (2006.01); C11D 1/65 (2006.01); C11D 1/66 (2006.01); C11D 1/94 (2006.01); C11D 17/00 (2006.01); C11D 1/10 (2006.01); C11D 1/40 (2006.01); C11D 1/44 (2006.01); C11D 1/90 (2006.01)

CPC C11D 1/29 (2013.01) [C11D 1/37 (2013.01); C11D 1/65 (2013.01); C11D 1/66 (2013.01); C11D 1/94 (2013.01); C11D 17/0017 (2013.01); C11D 1/10 (2013.01); C11D 1/40 (2013.01); C11D 1/44 (2013.01); C11D 1/90 (2013.01)]

10 Claims

1. A laundry detergent composition comprising:

a builder;

an enzyme; and

a surfactant system comprising an extended chain C₁₂-C₁₄alkyl anionic sulfate surfactant having 5 or more moles of propoxylation; one or more amine co-surfactants comprising: an alkyl oxypropyl diamine, wherein the amine co-surfactant has a branched isodecyl or isotridecyl group; and

an extended nonionic ethoxylated or ethoxylated and propoxylated C₈-C₁₁alcohol surfactant having from 1 to 10 moles of ethoxylation,

wherein the extended chain C₁₂-C₁₄alkyl anionic sulfate surfactant and the amine co-surfactant and the extended nonionic ethoxylated or ethoxylated and propoxylated C₈-C₁₁alcohol surfactant have a weight ratio of 1.67:1:0.75,

wherein said surfactant system forms an emulsion or microemulsion with an oily soil when the amine co-surfactant is neutral and precipitates with oily soil when the amine co-surfactant is protonated.