Acidic biofilm remediation

Patent metadata

Field	Value
Publication number	US-12396456-B2
Application number	US-202318348449-A
Country	US
Kind code	B2
Filing date	Jul 7, 2023
Priority date	Mar 11, 2011
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

Methods and compositions for biofilm remediation are disclosed. Biofilm is reduced and removed from soiled surfaces by providing to a surface in need an effective amount of a composition comprising a biocidal surfactant and at least one organic solvent. According to the invention, the biofilm remediation compositions reduce and remove biofilm formation by administering a one-step cleaner and disinfectant. The biofilm remediation compositions are stable and effective in concentrated and diluted ready-to-use formulations comprising an anionic sulfated or sulfonated surfactant that is not an organocarboxylic acid, a sparingly soluble organic solvent and optionally a soluble organic solvent.

First claim

What is claimed is:

1. A sanitizing composition comprising:
from about 0.1 to about 90 wt-% of an anionic surfactant, wherein the anionic surfactant excludes short chain (C1-C5) organocarboxylic acid and is a sulfonated acid; and
from about 0.8 to about 60 wt-% of a sparingly soluble organic solvent; wherein said composition has sanitizing efficacy against viruses and/or bacteria, wherein the bacteria includes Pseudomonas aeruginosa and Staphylococcus aureus , and is exposed to the composition for 2.5 minutes.

2. The composition of claim 1 wherein the anionic surfactant is selected from the group consisting of (C 8 -C 22 ) alkylsulfonate, linear alkyl benzene sulfonic acid, diphenylated sulfonates, sulfonated oleic acid, and mixtures thereof.

3. The composition of claim 1 , wherein said sparingly soluble organic solvent is a benzyl alcohol, a glycol ether, or a mixture thereof; and wherein the glycol ether is selected from the group consisting of diethylene glycol n-butyl ether, diethylene glycol n-propyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol t-butyl ether, dipropylene glycol n-butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol tert-butyl ether, ethylene glycol butyl ether, ethylene glycol propyl ether, ethylene glycol ethyl ether, ethylene glycol methyl ether, ethylene glycol methyl ether acetate, propylene glycol n-butyl ether, propylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol n-propyl ether, tripropylene glycol methyl ether and tripropylene glycol n-butyl ether, ethylene glycol phenyl ether, propylene glycol phenyl ether and mixtures thereof.

4. The composition of claim 3 , wherein the sparingly soluble solvent comprises benzyl alcohol.

5. The composition of claim 1 , further comprising an oxidizing agent and from about 0.5 to about 30 wt-% of said anionic surfactant and from about 1 to about 40 wt-% of said sparingly soluble organic solvent.

6. The composition of claim 1 , wherein the anionic surfactant is from about 0.5 to about 30 wt-%, wherein the sparingly soluble organic solvent is from about 0.8 to about 10 wt-%.

7. The composition of claim 6 , wherein the anionic surfactant is selected from the group consisting of (C 8 -C 22 ) alkylsulfonate, linear alkyl benzene sulfonic acid, diphenylated sulfonates, sulfonated oleic acid, and mixtures thereof and wherein the sparingly soluble and soluble organic solvents are selected from the group consisting of benzyl alcohol, diethylene glycol n-butyl ether, diethylene glycol n-propyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol t-butyl ether, dipropylene glycol n-butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol tert-butyl ether, ethylene glycol butyl ether, ethylene glycol propyl ether, ethylene glycol ethyl ether, ethylene glycol methyl ether, ethylene glycol methyl ether acetate, propylene glycol n-butyl ether, propylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol n-propyl ether, tripropylene glycol methyl ether and tripropylene glycol n-butyl ether, ethylene glycol phenyl ether, propylene glycol phenyl ether and mixtures thereof.

8. The composition of claim 7 , wherein the sparingly soluble organic solvent comprises benzyl alcohol.

9. A use solution comprising the sanitizing composition of claim 1 , and between about 16 parts water to about 64 parts water.

10. The use solution of claim 9 , wherein the composition has a pH of less than 5 achieves log reduction of 94-99% of the bacteria tested.

11. The use solution of claim 9 , wherein the water is less than about 32 parts water and has a pH of less than about 4.

12. A sanitizing composition comprising:
from about 0.2 to about 2 wt-% of an anionic surfactant, wherein the anionic surfactant is not a short chain (C1-C5) organocarboxylic acid and is a sulfonated acid;
from about 0.5 to about 5 wt-% of a benzyl alcohol in dilution; and
wherein the composition has a pH of less than about 4 and has sanitizing efficacy against bacteria and/or viruses; and wherein the bacteria includes Pseudomonas aeruginosa and Staphylococcus aureus , and is exposed to the composition for 2.5 minutes.

13. The composition of claim 12 , wherein the anionic surfactant is selected from the group consisting of (C 8 -C 22 ) alkylsulfonate, linear alkyl benzene sulfonic acid, diphenylated sulfonates, sulfonated oleic acid, and mixtures thereof.

14. The composition of claim 12 , wherein the composition further comprises a sparingly soluble organic solvent selected from the group consisting of diethylene glycol n-butyl ether, diethylene glycol n-propyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol t-butyl ether, dipropylene glycol n-butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol tert-butyl ether, ethylene glycol butyl ether, ethylene glycol propyl ether, ethylene glycol ethyl ether, ethylene glycol methyl ether, ethylene glycol methyl ether acetate, propylene glycol n-butyl ether, propylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol n-propyl ether, tripropylene glycol methyl ether and tripropylene glycol n-butyl ether, ethylene glycol phenyl ether, propylene glycol phenyl ether and mixtures thereof.

15. A use solution comprising the sanitizing composition of claim 12 , and between about 16 parts water to about 64 parts water.

16. The use solution of claim 15 , wherein the composition has a pH of less than 5 achieves log reduction of 94-99% of the bacteria tested.

Assignees

• Ecolab Usa Inc

Inventors

• Griese Gregory G
• Levitt Mark
• Staub Richard K
• Gilbreth Stefanie

Classifications

• A01N41/04 Primary

  Sulfonic acids; Derivatives thereof · CPC title

• A01N25/02

  containing liquids as carriers, diluents or solvents · CPC title