US 12,486,472 B2
Concentrated liquid esterquat compositions
Dennis S. Murphy, Libertyville, IL (US); Kathryn E. Merwin, Palatine, IL (US); Teresa Germain, Orland Park, IL (US); Patrick Shane Wolfe, Palatine, IL (US); and Sebastian Flieger, Elk Grove Village, IL (US)
Assigned to Stepan Company, Northbrook, IL (US)
Filed by Stepan Company, Northbrook, IL (US)
Filed on Oct. 28, 2022, as Appl. No. 17/976,315.
Application 17/976,315 is a continuation of application No. PCT/US2021/029118, filed on Apr. 26, 2021.
Claims priority of provisional application 63/017,976, filed on Apr. 30, 2020.
Prior Publication US 2023/0068208 A1, Mar. 2, 2023
Int. Cl. C11D 1/62 (2006.01); C11D 3/00 (2006.01); C11D 3/32 (2006.01); C11D 3/37 (2006.01); C11D 3/43 (2006.01)
CPC C11D 1/62 (2013.01) [C11D 3/0015 (2013.01); C11D 3/32 (2013.01); C11D 3/3707 (2013.01); C11D 3/43 (2013.01); C11D 2111/12 (2024.01)] 20 Claims
 
1. A clear, stable liquid composition comprising:
(A) from about 30% to about 80% by weight, based on the weight of the composition, of one or more esterquats, wherein the one or more esterquats are the quaternized reaction product of a fatty acyl source having an Iodine Value of 40 to 130, and an alkanolamine at a fatty acyl to alkanolamine molar ratio of about 1.0:1 to about 2.2:1;
(B) from about 20% to about 50% by weight, based on the weight of the composition, of a solvent system that is free of volatile organic solvents, wherein the solvent system is a mixture of one or more polyethylene glycols having a number average molecular weight between 130 and 700, and one or more fatty amides having the following general structure:

OG Complex Work Unit Chemistry
wherein R has from 6 to 20 carbon atoms, is branched or straight, saturated or has one or more double bonds, optionally containing one or more hydroxyl groups;
and R1 and R2 are independently hydrogen, a C1 to C6 alkyl group, or a C2 to C6 alkenyl group, optionally containing one or more hydroxyl groups and can optionally be branched when 3 or more carbon atoms are present;
(C) optionally, 0 up to 30% by weight water;
wherein, the composition has a measured viscosity of less than 5000 cP at 25° C.