US 11,939,553 B2
Non-caustic cleaning compositions and uses thereof
Sukhwan Soontravanich, Inver Grove Heights, MN (US); Paige Mary Owens, Blaine, MN (US); Ashish Dhawan, Aurora, IL (US); and Carter Martin Silvernail, Lakeville, MN (US)
Assigned to Ecolab USA Inc., St. Paul, MN (US)
Filed by Ecolab USA Inc., St. Paul, MN (US)
Filed on Jun. 3, 2021, as Appl. No. 17/338,288.
Claims priority of provisional application 63/033,998, filed on Jun. 3, 2020.
Prior Publication US 2021/0380903 A1, Dec. 9, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 1/72 (2006.01); A23C 7/02 (2006.01); B01D 65/02 (2006.01); B01D 71/68 (2006.01); B08B 3/04 (2006.01); C11D 3/20 (2006.01); C11D 3/37 (2006.01); C11D 11/00 (2006.01)
CPC C11D 1/721 (2013.01) [A23C 7/02 (2013.01); B01D 65/02 (2013.01); B01D 71/68 (2013.01); C11D 11/0017 (2013.01); C11D 11/0029 (2013.01); C11D 11/0035 (2013.01); C11D 11/0052 (2013.01); B01D 2321/168 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for cleaning an article, the method comprising contacting the article with a cleaning composition comprising a compound of Formula 1 having the following structure:

OG Complex Work Unit Chemistry
wherein
A is an optionally substituted phenyl, naphthalene, indole, purine, pyridine, quinoline, isoquinoline or pyrimidine; and
Z has a structure of moiety A or moiety B:

OG Complex Work Unit Chemistry
wherein
X is —O—, —N(R10)—, or —OC(O)—;
n is an integer from 0 to 10;
R6 and R9 are independently hydrogen, alkyl, or aryl;
R7 is —(CH2)z-O—R11;
R8 is independently hydrogen, alkyl, or aryl;
R10 is hydrogen, alkyl, or Z;
R11 is hydrogen or alkyl;
m is independently an integer from 3 to 20; and
z is an integer from 1 to 10;
and the cleaning composition has a pH of 7 or less.