US 12,329,157 B2
Anionic surfactant impact on virucidal efficacy
Catherine Hanson, Saint Paul, MN (US); Junzhong Li, Saint Paul, MN (US); Jonathan Scott Killeen, Baden Württemberg (DE); and Lisa A. Hellickson, 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. 16, 2020, as Appl. No. 17/247,554.
Claims priority of provisional application 62/948,378, filed on Dec. 16, 2019.
Prior Publication US 2021/0176986 A1, Jun. 17, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 37/02 (2006.01); A01N 25/30 (2006.01); A01N 41/04 (2006.01)
CPC A01N 37/02 (2013.01) [A01N 25/30 (2013.01); A01N 41/04 (2013.01)] 18 Claims
 
1. A virucidal composition comprising:
from about 30 wt-% to about 50 wt-% of a weak acid comprising lactic acid;
from about 5 wt-% to about 30 wt-% of a strong acid comprising methane sulfonic acid;
a C8-C22 alpha olefin sulfonate anionic surfactant;
wherein the composition is a liquid or a solid;
an alkoxylated nonionic surfactant having an EO/PO block copolymer; and
wherein a use pH of the composition is from about 1.5 to about 4.