	US 11,981,879 B2
	Reduced-residue hard surface cleaner and method for determining film/streak
Ronald A. Masters, Glenview, IL (US); Mona Marie Knock, Barrington, IL (US); Patrick Shane Wolfe, Palatine, IL (US); Timothy A. Boebel, Wilmette, IL (US); Xue Min Dong, Lincolnshire, IL (US); and Dennis S. Murphy, Libertyville, IL (US)
Assigned to STEPAN COMPANY, Northfield, IL (US)
Filed by STEPAN COMPANY, Northfield, IL (US)
Filed on Jan. 18, 2021, as Appl. No. 17/151,441.
Application 17/151,441 is a continuation of application No. PCT/US2019/041520, filed on Jul. 12, 2019.
Claims priority of provisional application 62/701,182, filed on Jul. 20, 2018.
Claims priority of provisional application 62/826,115, filed on Mar. 29, 2019.
Prior Publication US 2021/0139815 A1, May 13, 2021
Int. Cl. C11D 1/00 (2006.01); C11D 1/66 (2006.01); C11D 1/72 (2006.01); C11D 1/722 (2006.01); C11D 1/82 (2006.01); C11D 3/20 (2006.01); C11D 3/26 (2006.01); C11D 3/30 (2006.01); C11D 3/32 (2006.01); C11D 3/37 (2006.01); C11D 17/00 (2006.01)

CPC C11D 1/66 (2013.01) [C11D 3/2086 (2013.01); C11D 3/3792 (2013.01); C11D 17/0008 (2013.01)]

14 Claims

1. A dilutable concentrate for hard surface cleaners with improved film/streak performance on high-energy surfaces, comprising:

(a) 30 to 90 wt. % of a nonionic alkoxylated surfactant;

(b) 2 to 30 wt. % of a polyetheramine comprising at least one primary amino group and having a number-average molecular weight of 300 to 5,000 g/mol and at least 50 mole % of oxypropylene units, oxybutylene units or both, based on the combined amounts of oxyalkylene units; and

(c) optionally, up to 50 wt. % of a cosolvent, a builder, an auxiliary surfactant, or a mixture thereof, said wt. % values based on the amount of dilutable concentrate.