US 11,912,960 B2
Efficient surfactant system on plastic and all types of ware
Janel Marie Kieffer, Saint Paul, MN (US); Terrence P. Everson, Saint Paul, MN (US); James S. Dailey, Grosse Ile, MI (US); Thomas Gessner, Ypsilanti, MI (US); and Juergen Tropsch, Ludwigshafen (DE)
Assigned to Ecolab USA Inc., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Nov. 5, 2021, as Appl. No. 17/453,798.
Application 17/453,798 is a continuation of application No. 16/848,003, filed on Apr. 14, 2020, granted, now 11,198,836.
Application 16/848,003 is a continuation of application No. 15/966,172, filed on Apr. 30, 2018, granted, now 10,683,466, issued on Jun. 16, 2020.
Application 15/966,172 is a continuation of application No. 15/157,124, filed on May 17, 2016, granted, now 9,982,220, issued on May 29, 2018.
Application 15/157,124 is a continuation of application No. 15/157,194, filed on May 17, 2016, granted, now 10,017,714, issued on Jul. 10, 2018.
Claims priority of provisional application 62/163,454, filed on May 19, 2015.
Prior Publication US 2022/0056369 A1, Feb. 24, 2022
Int. Cl. C11D 1/72 (2006.01); C11D 1/825 (2006.01); A47L 15/00 (2006.01); C11D 1/79 (2006.01)
CPC C11D 1/825 (2013.01) [A47L 15/0007 (2013.01); C11D 1/72 (2013.01); C11D 1/79 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of rinsing a surface comprising:
applying a rinse aid composition to a ware in need of rinsing;
wherein the rinse aid composition comprises a surfactant system comprising:
(i) at least two surfactants according to the following formulas:
R1—O-(EO)x3(PO)y3—H  (A)
wherein R1 is a straight-chain C10-C16 alkyl, wherein x3 is from 5 to 8, and
wherein y3 is from 2 to 5,
R1—O-(EO)x4(PO)y4—H  (A2)
wherein R1 is a straight-chain C10-C16 alkyl, wherein x4 is from 4 to 6, and
wherein y4 is from 3 to 5,
R2—O-(EO)x1—H  (B)
wherein R2 is a C10-C14 alkyl with an average of at least 2 branches per residue, and
wherein x1 is from 5 to 10,
R7—O—(PO)y5(EO)x5(PO)y6—H  (D)
wherein R7 is a branched C8-C16 Guerbet alcohol, x5 is from 5 to 30, y5 is from 1 to 4,
and y6 is from 10 to 20,

OG Complex Work Unit Chemistry
wherein x is from 88 to 108, y is from 57 to 77, and z is from 88 to 108, and

OG Complex Work Unit Chemistry
wherein x is from 15 to 25, y is from 10 to 25, and z is from 15 to 25; and
(ii) optionally an additional surfactant according to the following formulas:
R2—O-(EO)x2—H  (C)
wherein R2 is a C10-C14 alkyl with an average of at least 2 branches per residue, and wherein x2 is from 2 to 4,
R6—O—(PO)y4(EO)x4—H  (E)
wherein R6 is a C8-C16 Guerbet alcohol, wherein x4 is from 2 to 10, and wherein y4 is

OG Complex Work Unit Chemistry
wherein x is from 12 to 20, y is from 120 to 220, and z is from 12 to 20.