Granted Patent B2

US 9,233,180 · App. 14/056,117 · Granted Jan 12, 2016

Abstract

Claims (59)

1. An aqueous disinfecting solution having a pH of from 0.6 to 7 consisting of:

(a) hydrogen peroxide in a concentration of from 0.01 to 6% w/w;

(b) benzyl alcohol in a concentration of from 1.5 to 4% w/w;

(c) at least one anionic surfactant selected from the group consisting of (i) C8-C16 alkyl benzene sulfonic acids and alkali metal, alkaline earth metal, ammonium or alkylamine salts thereof; (ii) C8-C18 alkyl sulfonic acid; (iii) C6-C12 alkyl diphenyl oxide sulfonate surfactants, and (iv) alkyl or alkenyl esters or diesters of sulfosuccinic acid in which the alkyl or alkenyl groups independently contain from six to eighteen carbon atoms and alkali metal, ammonium, calcium and magnesium salts thereof in a concentration of from 0.01 to 10% w/w;

(d) optionally, at least one ingredient chosen from 2-furan carboxylic acid, salicylic acid and benzoic acid in a concentration of from 0.01 to 8% w/w;

(e) optionally, at least one nonionic surfactant selected from the group consisting of (i) ethoxylated alcohols; (ii) alkylglycosides having a hydrophile lyophile balance from 5 to 15; and (iii) a water-soluble block copolymer of ethylene oxide and propylene oxide, in a concentration of from 0.005 to 3% w/w;

(f) optionally, at least one pH buffer or pH adjuster to achieve the desired pH value;

(g) optionally, at least one corrosion inhibitor in a concentration of from 0.001 to 15% w/w;

(h) optionally, at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate, and sodium toluene sulfonate in a concentration of from 0.01 to 15% w/w;

(i) optionally, at least one solvent selected from the group consisting of glycols, glycol ethers, n-butanol, n-butyl acetate, diisobutyl ketone, isobutanol, isobutyl acetate, isopropanol (anhydrous), isopropyl acetate, methyl isobutyl carbinol, methyl isobutyl ketone, primary amyl acetate mixed isomers, n-propanol, n-propyl acetate, n-butyl propionate, n-pentyl propionate, ethanol, propyl alcohol, isopropyl alcohol, and glycerin in a concentration of from 0.1 to 20% w/w;

(j) optionally, at least one cation sequestering agent in a concentration of from 0.01 to 6% w/w;

(k) optionally, at least one ingredient selected from the group consisting of silicone-based antifoaming agents, hydrogen peroxide stabilizers, thickeners, dyes, fragrances, and skin conditioning agents; and

(l) water q.s. to 100% w/w;

wherein all concentration values are based on the total weight of the solution and the solution is effective in destroying mycobacteria.

2. The solution of claim 1 , wherein at least one of 2-furan carboxylic acid, salicylic acid and benzoic acid is present.

3. The solution of claim 1 , wherein at east one of said non-ionic surfactants is present.

4. The solution of claim 1 , wherein at least one cation seguestering agent is present.

5. The solution of claim 1 , wherein at least one pH buffer or pH adjuster is present.

6. A solution according to claim 1 , wherein the at least one pH buffer is selected from the group consisting of phosphoric acid, citric acid, glycolic acid, sodium carbonate, calcium carbonate, potassium hydroxide, sodium hydroxide, ethanolamine and lactic acid.

7. The solution of claim 1 , wherein at least one corrosion inhibitor is present.

8. A solution according to claim 1 , wherein the at least one corrosion inhibitor is selected from the group consisting of 1,2,3 benzotriazole, sodium molybdate, sodium nitrite, sodium bisulfate, sodium metabisulfate, chromates, borates, phosphates, polyphosphates, sodium benzoate, sodium gluconate and sodium silicate.

9. The solution of claim 1 , wherein at least one of said hydrotopes is present.

10. The solution of claim 1 , wherein at least one of said solvents is present.

11. The solution of claim 1 , wherein at least one ingredient selected from the group consisting of hydrogen peroxide stabilizers, thickeners, and skin conditioning agents is present.

12. The solution of claim 1 wherein said hydrogen peroxide is present in a concentration of from 0.25 to 4% w/w.

13. The solution of claim 1 , wherein the at least one nonionic surfactant is selected from the group consisting of a water-soluble block copolymer of ethylene oxide and propylene oxide, and a C6-C10 alkyl, 3.5 moles of ethylene oxide (EO) alcohol ethoxylate.

14. The solution of claim 1 , having a pH of from 0.6 to 5.

15. A concentrated, aqueous, acidic disinfecting solution which can be diluted with water to provide a solution having a pH from 0.6 to 7

consisting of:

(a) hydrogen peroxide in a concentration of from 0.01 to 6% w/w;

(b) benzyl alcohol in a concentration of from 1.5 to 4% w/w;

(c) at least one anionic surfactant selected from the group consisting of (i) C8-C16 alkyl benzene sulfonic acids and alkali metal, alkaline earth metal, ammonium or alkylamine salts thereof; (ii) C8-C18 alkyl sulfonic acid; (iii) C6-C12 alkyl diphenyl oxide sulfonate surfactants, and (iv) alkyl or alkenyl esters or diesters of sulfosuccinic acid in which the alkyl or alkenyl groups independently contain from six to eighteen carbon atoms and alkali metal, ammonium, calcium and magnesium salts thereof in a concentration of from 0.01 to 10% w/w;

(d) optionally, at least one ingredient chosen from 2-furan carboxylic acid, salicylic acid and benzoic acid in a concentration of from 0.01 to 8% w/w;

(e) optionally, at least one nonionic surfactant selected from the group consisting of (i) ethoxylated alcohols; (ii) alkylglycosides having a hydrophile lyophile balance from 5 to 15; and (iii) a water-soluble block copolymer of ethylene oxide and propylene oxide, in a concentration of from 0.005 to 3% w/w;

(f) optionally, at least one pH buffer or pH adjuster to achieve the desired pH value;

(g) optionally, at least one corrosion inhibitor in a concentration of from 0.001 to 15% w/w;

(h) optionally, at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate, and sodium toluene sulfonate in a concentration of from 0.01 to 15% w/w;

(i) optionally, at least one solvent selected from the group consisting of glycols, glycol ethers, n-butanol, n-butyl acetate, diisobutyl ketone, isobutanol, isobutyl acetate, isopropanol (anhydrous), isopropyl acetate, methyl isobutyl carbinol, methyl isobutyl ketone, primary amyl acetate mixed isomers, n-propanol, n-propyl acetate, n-butyl propionate, n-pentyl propionate, ethanol, propyl alcohol, isopropyl alcohol, and glycerin in a concentration of from 0.1 to 20% w/w;

(j) optionally, at least one cation sequestering agent in a concentration of from 0.01 to 6% w/w;

(k) optionally, at least one ingredient selected from the group consisting of silicone-based antifoaming agents, hydrogen peroxide stabilizers, thickeners, dyes, fragrances, and skin conditioning agents; and

(l) water q.s. to 100% w/w;

wherein all concentration values are based on the total weight of the solution and the solution is effective in destroying mycobacteria.

16. A method of killing mycobacteria comprising applying an aqueous disinfecting solution to a surface contaminated with mycobacteria, the solution having a pH of from 0.6 to 7 and

consisting of:

(a) hydrogen peroxide in a concentration of from 0.01 to 6% w/w;

(b) benzyl alcohol in a concentration of from 1.5 to 4% w/w;

(c) at least one anionic surfactant chosen from (i) C8-C16 alkyl benzene sulfonic acids and alkali metal, alkaline earth metal, ammonium or alkylamine salts thereof; (ii) C8-C18 alkyl sulfonic acid; (iii) C6-C12 alkyl diphenyl oxide sulfonate surfactants, and (iv) alkyl or alkenyl esters or diesters of sulfosuccinic acid in which the alkyl or alkenyl groups independently contain from six to eighteen carbon atoms and alkali metal, ammonium, calcium and magnesium salts thereof in a concentration of from 0.01 to 10% w/w;

(d) optionally, at least one ingredient chosen from 2-furan carboxylic acid, salicylic acid and benzoic acid in a concentration of from 0.01 to 8% w/w;

(e) optionally, at least one nonionic surfactant selected from the group consisting of (i) ethoxylated alcohols; (ii) alkylglycosides having a hydrophile lyophile balance from 5 to 15; and (iii) a water-soluble block copolymer of ethylene oxide and propylene oxide, in a concentration of from 0.005 to 3% w/w;

(f) optionally, at least one pH buffer or pH adjuster to achieve the desired pH value;

(g) optionally, at least one corrosion inhibitor in a concentration of from 0.001 to 15% w/w;

(h) optionally, at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate, and sodium toluene sulfonate in a concentration of from 0.01 to 15% w/w;

(i) optionally, at least one solvent selected from the group consisting of glycols, glycol ethers, n-butanol, n-butyl acetate, diisobutyl ketone, isobutanol, isobutyl acetate, isopropanol (anhydrous), isopropyl acetate, methyl isobutyl carbinol, methyl isobutyl ketone, primary amyl acetate mixed isomers, n-propanol, n-propyl acetate, n-butyl propionate, n-pentyl propionate, ethanol, propyl alcohol, isopropyl alcohol, and glycerin in a concentration of from 0.1 to 20% w/w;

(j) optionally, at least one cation sequestering agent in a concentration of from 0.01 to 6% w/w;

(k) optionally, at least one ingredient selected from the group consisting of silicone-based antifoaming agents, hydrogen peroxide stabilizers, thickeners, dyes, fragrances, and skin conditioning agents; and

(l) water q.s. to 100% w/w;

wherein all concentration values are based on the total weight of the solution and the solution is effective in destroying mycobacteria.

17. The method of claim 16 , wherein the solution is circulated in place through equipment to be disinfected at a temperature of from 20 to 60 degrees Celsius to disinfect the equipment.

18. A multi-component system which can be combined to provide a disinfecting solution according to claim 1 .

Assignments (11)