US 12,324,432 B2
Hard surface cleaning solution with rapid viricidal activity
Joseph Wegner, Saint Paul, MN (US); and Mark Levitt, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Apr. 13, 2020, as Appl. No. 16/847,275.
Claims priority of provisional application 62/833,274, filed on Apr. 12, 2019.
Prior Publication US 2020/0323199 A1, Oct. 15, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 31/08 (2006.01); A01N 25/34 (2006.01); A01N 31/02 (2006.01); C11D 1/22 (2006.01); C11D 1/722 (2006.01); C11D 1/831 (2006.01); C11D 3/20 (2006.01); C11D 3/43 (2006.01)
CPC A01N 31/02 (2013.01) [A01N 25/34 (2013.01); A01N 31/08 (2013.01); C11D 1/831 (2013.01); C11D 3/2034 (2013.01); C11D 3/43 (2013.01); C11D 1/22 (2013.01); C11D 1/722 (2013.01)] 5 Claims
 
1. A concentrated viricidal composition comprising:
between about 5 wt. % and about 10 wt. % of an anionic sulfonated surfactant comprising dodecylbenzene sulfonic acid;
between about 80 wt. % and about 90 wt. % of an aromatic alcohol solvent comprising benzyl alcohol;
between about 5 wt. % and about 10 wt. % of a nonionic surfactant comprising an ethylene oxide/propylene oxide (EO/PO) block copolymer; and
between about 0.01 wt. % and about 0.5 wt. % of a water conditioning agent comprising a diphosphonic acid; and
between about 0.01 wt. % and about 0.05 wt. % of sodium hydroxide;
wherein the ratio of aromatic alcohol solvent to anionic sulfonated surfactant is between about 8:1 and about 15:1;
wherein the composition has less than about 0.1 wt. % of added peroxide;
wherein the composition provides a pH of less than about 3 in a use solution formed with between about 90 wt. % water to about 98 wt. % water; and
wherein the composition provides at least about 3.5 log reduction in polio in about 1 minute or less.