Compositions and methods for long lasting disinfection

Abstract

An antimicrobial composition that includes: an antimicrobial component having at least one quaternary ammonium compound; a cationic polysaccharide; an organic acid; and a surfactant selected from cationic surfactants, amphoteric surfactants, nonionic surfactants and combinations thereof. This composition when applied to a surface provides robust long lasting disinfection.

1 - 14 . (canceled) 
     
     
         15 . A liquid hard surface treatment composition comprising: 
 a. an antimicrobial component comprising at least one quaternary ammonium compound;   b. a cationic polysaccharide derived from a natural source;   c. an organic acid; and   d. a surfactant selected from the group consisting of cationic surfactants, amphoteric surfactants, nonionic surfactants, and combinations thereof,   wherein a film formed from the composition kills at least 95% of microorganisms for at least 3 abrasion cycles according to RSS-12 h.   
     
     
         16 . The composition of  claim 15 , wherein the antimicrobial component is selected from the group consisting of monoalkyldimethylbenzyl ammonium salts, dialkyldimethyl ammonium salts, and combinations thereof. 
     
     
         17 . The composition of  claim 15 , wherein the cationic polysaccharide is selected from the group consisting of cationic guar, cationic cellulose, cationic starch, and combinations thereof. 
     
     
         18 . The composition of  claim 17 , wherein the cationic polysaccharide is cationic guar. 
     
     
         19 . The composition of  claim 18 , wherein the cationic guar is selected from the group consisting of guars hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride, and combinations thereof. 
     
     
         20 . The composition of  claim 15 , wherein the organic acid is selected from the group consisting of citric, malic, maleic, lactic, succinic, glutaric, adipic acids and combinations thereof. 
     
     
         21 . The composition of  claim 15 , wherein the surfactant comprises a cationic surfactant selected from the group consisting of cationic amine oxides, cationic betaines, propionates, amphoacetates and combinations thereof. 
     
     
         22 . The composition of  claim 15 , wherein the surfactant comprises an amphoteric surfactant selected from the group consisting of sultaines, taurates, and combinations thereof. 
     
     
         23 . The composition of  claim 15  further comprising a polar solvent. 
     
     
         24 . The composition of  claim 15 , wherein a film formed from the composition kills at least 95% of gram-positive bacteria and gram-negative bacteria, or enveloped and nonenveloped viruses according to Environmental Protection Agency (EPA) Protocol #01-1A residual self-sanitizing activity test. 
     
     
         25 . The liquid hard surface treatment composition of  claim 15 , wherein the composition is a concentrate. 
     
     
         26 . A method of providing a surface with residual antimicrobial action that comprises the step of applying the composition of  claim 15  to the surface. 
     
     
         27 . A substrate with residual antimicrobial action comprising a substrate wherein at least a portion of the substrate is coated with the composition of  claim 15 . 
     
     
         28 . The composition of  claim 15  further comprising water. 
     
     
         29 . A wipe comprising the composition of  claim 15 . 
     
     
         30 . The wipe of  claim 29 , wherein the wipe is a woven or non-woven material. 
     
     
         31 . The wipe of  claim 29 , wherein the wipe is a woven or non-woven fabric and the fabric comprises wood pulp fibers, synthetic fibers comprising a synthetic polymer selected from rayon, nylon, orlon, polyester, and blends thereof, and combinations thereof. 
     
     
         32 . An aerosol comprising the composition of  claim 15 .