US 12,338,413 B2
Methods of cleaning and soil release of highly oil absorbing substrates employing optimized extended chain nonionic surfactants
Victor Fuk-Pong Man, Saint Paul, MN (US); Derrick Anderson, Saint Paul, MN (US); Gang Pu, Saint Paul, MN (US); Jimmy Stokes, Duncan, SC (US); and Kaustav Ghosh, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Dec. 4, 2023, as Appl. No. 18/528,112.
Application 18/528,112 is a continuation of application No. 16/947,732, filed on Aug. 13, 2020, granted, now 11,873,465.
Claims priority of provisional application 62/886,483, filed on Aug. 14, 2019.
Prior Publication US 2024/0101927 A1, Mar. 28, 2024
Int. Cl. C11D 1/72 (2006.01); C11D 1/83 (2006.01); C11D 3/00 (2006.01); C11D 17/00 (2006.01)
CPC C11D 1/72 (2013.01) [C11D 1/83 (2013.01); C11D 3/0036 (2013.01); C11D 3/0047 (2013.01); C11D 17/0021 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cleaning composition with a surfactant package comprising:
an extended chain nonionic surfactant comprising a C10 or C12-[PO]8-[EO]y guerbet alcohol, wherein y is the average degree of ethoxylation ranging from 3 to 10;
an additional surfactant having an EO/PO block copolymer, wherein the ratio of extended chain nonionic surfactant to EO/PO block copolymer is about 5:1,
wherein no other extended chain nonionic surfactants are present, and
wherein the composition is free of an alkalinity source.