US 12,324,433 B2
Antimicrobial enhancement of cationic active skin antiseptics
Lilian Lam Josephson, Saint Paul, MN (US); Daniel E. Pedersen, Saint Paul, MN (US); and Dale Curtis Larson, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Jan. 5, 2024, as Appl. No. 18/405,767.
Application 18/405,767 is a continuation of application No. 15/929,716, filed on May 18, 2020, granted, now 11,889,832.
Claims priority of provisional application 62/849,463, filed on May 17, 2019.
Prior Publication US 2024/0138407 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 37/46 (2006.01); A01N 25/16 (2006.01); A01N 33/12 (2006.01); A01N 37/52 (2006.01)
CPC A01N 37/46 (2013.01) [A01N 25/16 (2013.01); A01N 33/12 (2013.01); A01N 37/52 (2013.01)] 16 Claims
 
1. An antimicrobial composition comprising:
from about 0.1 wt. % to about 1 wt. % of an antimicrobial active compound comprising one or more of the following benzalkonium chloride, benzethonium chloride, chlorhexidine gluconate, and mixtures thereof, wherein the antimicrobial active compound has antimicrobial activity toward Gram positive and/or Gram negative microorganisms;
from about 1 wt. % to about 4 wt. % of a primary foaming agent, wherein the primary foaming agent comprises a C8-C16 alkanolamide, a glucosamide, or a mixture thereof;
from about 0.5 wt. % to about 1.5 wt. % of a C8-C12 Guerbet alcohol ethoxylate;
from about 0.1 wt. % to about 5 wt. % of a secondary foaming agent; wherein the secondary foaming agent comprises an alkyl trimethyl ammonium chloride;
from about 20 mM to about 100 mM of an L-amino acid comprising L-histidine, L-glycine, L-arginine, or a combination thereof; and
from about 65 wt. % to about 99.7 wt. % of a carrier comprising hexylene glycol; wherein the composition has a pH between about 9 and about 9.6.