US 11,937,602 B2
Solid acid/anionic antimicrobial and virucidal compositions and uses thereof
Wendy Lo, Saint Paul, MN (US); Derrick Anderson, Saint Paul, MN (US); Erik Olson, Saint Paul, MN (US); Catherine Hanson, Saint Paul, MN (US); Junzhong Li, Saint Paul, MN (US); David D. McSherry, Saint Paul, MN (US); Stacy Fawbush, Saint Paul, MN (US); Kaitlin Lake, Saint Paul, MN (US); Gerard Hinrichs, Saint Paul, MN (US); Joshua Luedtke, Saint Paul, MN (US); and Richard Staub, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by Ecolab USA Inc., Saint Paul, MN (US)
Filed on Sep. 26, 2018, as Appl. No. 16/143,146.
Claims priority of provisional application 62/563,461, filed on Sep. 26, 2017.
Prior Publication US 2019/0090480 A1, Mar. 28, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 31/7064 (2006.01); A01N 25/30 (2006.01); A01N 31/02 (2006.01); A01N 31/08 (2006.01); A01N 37/36 (2006.01); A01N 47/28 (2006.01); A61K 31/4439 (2006.01); A61K 31/498 (2006.01); A61L 2/18 (2006.01); A61L 2/22 (2006.01)
CPC A01N 37/36 (2013.01) [A01N 25/30 (2013.01); A01N 31/02 (2013.01); A01N 31/08 (2013.01); A01N 47/28 (2013.01); A61L 2/18 (2013.01); A61L 2/22 (2013.01); A61L 2202/14 (2013.01); A61L 2202/24 (2013.01)] 5 Claims
 
1. A solid antimicrobial composition consisting of:
from about 50 wt-% to about 75 wt-% of a strong acid, wherein the strong acid is methane sulfonic acid, phosphoric acid, sulfuric acid, sodium bisulfate, or a combination thereof, based on total weight of the composition;
from about 8 wt-% to about 55 wt-% of a weak acid, wherein the weak acid is lactic acid, citric acid, maleic acid, or a combination thereof, based on total weight of the composition;
an anionic surfactant, wherein the anionic surfactant isa sulfonate, sulfate and/or carboxylate;
a nonionic surfactant and/or at least one solidifying agent, wherein the at least one nonionic surfactant is an alkoxylated surfactant having an ethylene oxide-propylene oxide (EO/PO) block copolymer; and wherein the at least one solidifying agent is polyethylene glycol, an alkali metal salt, or an alkaline earth metal salt; and
from about 0.1 wt-% to about 25 wt-% of water.