Activated disinfectant hydrogen peroxide compositions

Patent metadata

Field	Value
Publication number	US-10646607-B2
Application number	US-201514857403-A
Country	US
Kind code	B2
Filing date	Sep 17, 2015
Priority date	Sep 17, 2014
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

Activated hydrogen peroxide disinfecting compositions are provided especially for low-foaming applications. A concentrate for dilution by an end-user is provided, which includes a hydrogen peroxide source, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, and an optional organic acid. Also provided is a ready-to-use hydrogen peroxide, disinfectant solution including a biocidal amount of hydrogen peroxide, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, water as solvent and an optional organic acid. An end-user can disinfect a surface of microorganisms by contacting the surface with the disinfecting composition for an amount of time effective to kill a majority of the microbes located on the surface.

First claim

We claim:

1. A hydrogen peroxide, disinfectant concentrate comprising:
a hydrogen peroxide source providing a hydrogen peroxide concentration from 2 to 8 weight percent of the total concentrate,
a non-surfactant organic sulfonic acid or salt thereof from 2 to 15 weight percent of the total concentrate, and
a non-ionic surfactant from 0.5 to 8 weight percent of the total concentrate, and
an optional acid other than the non-surfactant organic sulfonic acid from 0.2 to 10 weight percent of the total concentrate,
wherein the concentrate is free of an anionic surfactant,
wherein the concentrate dissolved in water provides a ready-to-use, disinfectant solution with a pH from 0.5 to 4.0,
wherein the concentrate dissolved in water provides the ready-to-use, disinfectant solution with 0.05 to 2 weight percent hydrogen peroxide,
wherein the hydrogen peroxide source, the non-surfactant organic sulfonic acid or salt thereof, the non-ionic surfactant, and the optional acid provide the ready-to-use, disinfectant solution with a Log 10 microbial reduction ≥4 within a 3-minute contact time against Staphylococcus aureus (Sa),
wherein the non-surfactant organic sulfonic acid or salt thereof is selected from the group consisting of methane sulfonic acid, benzene sulfonic acid, toluene sulfonic acid, xylene sulfonic acid, ethylbenzene sulfonic acid or mixtures thereof, and
wherein the optional acid is glutaric acid, citric acid, phosphoric acid, etidronic acid, or mixtures thereof.

2. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the non-surfactant organic sulfonic acid is methane sulfonic acid.

3. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the non-surfactant organic sulfonic acid is benzene sulfonic acid.

4. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the non-surfactant organic sulfonic acid is toluene sulfonic acid, xylene sulfonic acid, ethylbenzene sulfonic acid or mixtures thereof.

5. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the salt is an alkali metal salt, an alkaline earth metal salt or an ammonium salt.

6. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the optional acid is glutaric acid or citric acid.

7. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the optional acid is etidronic acid.

8. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the optional acid is phosphoric acid.

9. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the nonionic surfactant is a C 8 to C 14 alkylated polyethylene glycol, C 8 to C 14 alkylated polypropylene glycol, polyoxyethylene glycol alkylphenol ethers and glucoside alkyl ethers, or mixtures thereof.

10. The hydrogen peroxide, disinfectant concentrate of claim 1 , further comprising of a hydrogen peroxide stabilizer and a metal corrosion inhibitor each in a concentration of 0.05 to 0.5 weight percent of the total concentrate.

11. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the concentrate is a solid formulation in the form of a powder or tablet.

12. The hydrogen peroxide, disinfectant concentrate of claim 1 , wherein the hydrogen peroxide source is hydrogen peroxide solution, sodium percarbonate, potassium percarbonate, sodium and potassium perborate, hydrogen peroxide urea, hydrated forms thereof, or mixtures thereof.

13. A ready-to-use hydrogen peroxide, disinfectant solution comprising:
a biocidal amount of hydrogen peroxide from 0.05 to 2 weight percent of the total solution,
a non-surfactant organic sulfonic acid or salt thereof from 0.05 to 5.0 weight percent of the total solution,
a non-ionic surfactant from 0.05 to 3.0 weight percent of the total solution,
an optional acid other than the non-surfactant organic sulfonic acid from 0.05 to 6.0 weight percent of the total solution, and
water,
wherein the ready-to-use hydrogen peroxide, disinfectant solution is free of an anionic surfactant,
wherein the ready-to-use hydrogen peroxide, disinfectant solution has a pH from 0.5 to 4.0, and
wherein the hydrogen peroxide source, the non-surfactant organic sulfonic acid or salt thereof, the non-ionic surfactant, and the optional acid provide the ready-to-use hydrogen peroxide, disinfectant solution with a Log 10 microbial reduction ≥4 within a 3-minute contact time against Staphylococcus aureus (Sa),
wherein the non-surfactant organic sulfonic acid or salt thereof is selected from the group consisting of methane sulfonic acid, benzene sulfonic acid, toluene sulfonic acid, xylene sulfonic acid, ethylbenzene sulfonic acid or mixtures thereof, and
wherein the optional acid is glutaric acid, citric acid, phosphoric acid, etidronic acid, or mixtures thereof.

14. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the optional acid is glutaric acid or citric acid.

15. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the optional acid is etidronic acid.

16. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the optional acid is phosphoric acid.

17. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the solution has a pH of from 1 to 3.

18. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the non-surfactant organic sulfonic acid is methane sulfonic acid.

19. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the non-surfactant organic sulfonic acid is benzene sulfonic acid.

20. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the non-surfactant organic sulfonic acid is toluene sulfonic acid, xylene sulfonic acid, ethylbenzene sulfonic acid or mixtures thereof.

21. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , wherein the salt is an alkali metal salt, an alkaline earth metal salt or an ammonium salt.

22. The hydrogen peroxide disinfectant concentrate of claim 1 , further comprising of biocidal quaternary ammonium salt in an amount from 0.1 to 10 weight percent of the total concentrate.

23. The ready-to-use hydrogen peroxide, disinfectant solution of claim 13 , comprising of biocidal quaternary ammonium salt in an amount from 0.1 to 5 weight percent of the solution.

24. A method of disinfecting a surface of microorganisms, the method comprising:
contacting said surface with a disinfecting composition comprising of
(i) a biocidal amount of hydrogen peroxide from 0.05 to 2 weight percent of the disinfecting composition,
(ii) a non-surfactant organic sulfonic acid or salt thereof from 0.05 to 5.0 weight percent of the disinfecting composition,
(iii) a non-ionic surfactant from 0.05 to 3.0 weight percent of the disinfecting composition,
(iv) an optional acid other than the non-surfactant organic sulfonic acid from 0.05 to 6.0 weight percent of the disinfecting composition, and
(v) water,
wherein the disinfecting composition is free of an anionic surfactant,
wherein the disinfecting composition has a pH from 0.5 to 4.0,
wherein the hydrogen peroxide source, the non-surfactant organic sulfonic acid or salt thereof, the non-ionic surfactant, and the optional acid provide the disinfecting composition with a Log 10 microbial reduction ≥4 within a 3-minute contact time against Staphylococcus aureus (Sa),
wherein the non-surfactant organic sulfonic acid or salt

Assignees

• Lonza Ag

Inventors

• Lei Deqing
• Sweeny Philip Gerdon

Classifications

• A01N59/00 Primary

  Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds · CPC title

• A01N41/04

  Sulfonic acids; Derivatives thereof · CPC title

• A61L2/186 Primary

  Peroxide solutions · CPC title

• A01N25/30

  characterised by the surfactants · CPC title