Peracid/peroxide composition and use thereof as an anti-microbial and a photosensitizer

• US 20060229225A1
• Filed: 01/11/2006
• Published: 10/12/2006
• Est. Priority Date: 01/11/2005
• Status: Active Grant

• Current Assignee: Contec, Inc
• Original Assignee: Clean Earth Technologies LLC
• Inventors: Martin, Charles W., Golden, Jeffry, Stader, Joan A.
• Granted Patent: US 8,110,538 B2
• Time in Patent Office: Days
• US Class Current: 510/375
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/10 Macromolecular compounds
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/02 Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/16 containing the group; Thio analogues thereof
• CPC Class Codes: A01N 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• CPC Class Codes: A61L 2/0088 Liquid substances
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61L 2/186 Peroxide solutions
• CPC Class Codes: A61L 2/20 Gaseous substances, e.g. vapours
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: C08K 5/14 Peroxides
• CPC Class Codes: C08L 29/14 Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
• CPC Class Codes: C11D 1/345 Phosphates or phosphites
• CPC Class Codes: C11D 3/3753 Polyvinylalcohol; Ethers or esters thereof
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam
• CPC Class Codes: C11D 3/3947 Liquid compositions
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

A microbicidal and decontaminant composition comprising an aqueous solution of peroxides and peracids having equilibrium reaction products, a photoreactive surfactant, and a polymer, wherein said polymer interacts with said peroxides and said peracids.

Claims

1. A microbicidal and decontaminant composition comprising:

an aqueous solution of peroxides and peracids having equilibrium reaction products;

a photoreactive surfactant; and

a polymer, wherein said polymer interacts with said peroxides and said peracids.

2. The composition of claim 1, wherein said peroxides comprise hydrogen peroxide.

3. The composition of claim 2 wherein said hydrogen peroxide concentration is between approximately 0.1% and approximately 10%.

4. The composition of claim 2 wherein said hydrogen peroxide concentration is between approximately 0.1% and approximately 6%.

5. The composition of claim 2 wherein said hydrogen peroxide concentration is approximately 4%.

6. The composition of claim 1, wherein said peracids comprise peroxyacetic acid.

7. The composition of claim 6, wherein said peroxyacetic acid concentration is in the range of approximately 50 ppm to approximately 3% by weight.

8. The composition of claim 6, wherein said peroxyacetic acid concentration is approximately 0.2% by weight.

9. The composition of claim 1, wherein said equilibrium reaction products comprise acetic acid.

10. The composition of claim 1, wherein said polymer is selected from the group consisting of polyvinyl pyrrolidone and polyvinyl alcohol.

11. The composition of claim 1, wherein said polymer comprises soluble polyvinyl pyrrolidone with at least one lactam group.

12. The composition of claim 1 wherein said polymer concentration is in the range from approximately 0.015% to approximately 6%.

13. The composition of claim 1 wherein said polymer concentration is in the range from approximately 0.1% to approximately 3%.

14. The composition of claim 1 wherein said polymer concentration is approximately 0.1%.

15. The composition of claim 1, wherein said surfactant comprises a mixture comprising ethoxylated phosphate mono- and diesters.

16. The composition of claim 1, wherein said surfactant comprises a mixture comprising phosphate mono- and diesters of nonyl phenol ethoxylate.

17. The composition of claim 1, wherein said surfactant comprises a mixture comprising phosphate mono- and diesters of tri-decyl alcohol ethoxylate.

18. The composition of claim 1, wherein said surfactant comprises a lipophilic alkyl hydrocarbon chain in a range of C9 thru C13, a hydrophilic polyoxyethylene chain in a range of PEO-3 to PEO-9, and a phosphate ester.

19. The composition of claim 1, wherein said surfactant comprises a phosphate ester surfactant.

20. The composition of claim 1, wherein said surfactant and said polymer assist a multifunctional photo-enhanced microbicidal action of said composition.

21. The composition of claim 1 wherein said interaction of said polymer with said peroxides and said peracids comprises at least one of:

formation of complexes and formation of adducts.

22. The composition of claim 1 wherein said composition is in the form of a concentrate.

23. A method of decontaminating a surface, comprising the step of applying a solution comprising the composition of claim 1 to said surface.

24. The method of claim 23, further comprising exposing said surface to light.

25. The method of claim 24, wherein said light comprises ultraviolet light.

26. The method of claim 24, wherein said light comprises ultraviolet light with wavelengths in the range of approximately 170 nm to approximately 400 nm.

27. The method of claim 24, wherein said light comprises ultraviolet light with wavelengths in the range of approximately 210 nm to approximately 310 nm.

28. A method of decontaminating smooth or porous surfaces comprising applying the composition of claim 1.

29. A method of killing bacterial spores comprising:

applying the composition of claim 1 to said spores; and

exposing said spores to light substantially lacking in ultraviolet light content.

40. A method of decontaminating a volume of space, comprising:

applying the composition of claim 1 as an aerosol or a vapor.

41. A method of destroying nucleic acid compounds in a sample, comprising:

applying the composition of claim 1 to the sample; and

exposing the sample to high UV content light.

42. The method of claim 41 wherein the composition is applied by at least one of pressure spraying, electrostatic spraying, immersion, pouring, brushing, wiping, sponging, mopping, and evaporating. .

30. A sterilant composition comprising:

4% hydrogen peroxide;

2000 ppm peroxyacetic acid;

an equilibrium quantity of acetic acid;

0.1% to 1% polymer; and

0.05% to 0.5% surfactant.

31. The composition of claim 30 wherein said polymer comprises polyvinyl pyrrolidone.

32. The composition of claim 30 wherein said polymer comprises polyvinyl pyrrolidone with at least one lactam group.

33. The composition of claim 30 wherein said surfactant comprises a mixture of one or more phosphate esters.

34. The composition of claim 30 wherein said surfactant is selected from the group consisting of OC-20 and OC-40.

35. The composition of claim 30 wherein

said surfactant is a phosphate ester or mixtures thereof;

and

said polymer is selected from the group consisting of polyvinyl pyrrolidone, polyvinyl pyrrolidone with at least one lactam group, and polyvinyl alcohol.

36. A binary microbicidal and decontaminant composition comprising:

a first part comprising a stabilized solution comprising hydrogen peroxide, acetic acid, and peroxyacetic acid; and

a second part comprising a surfactant and a polymer;

wherein said first part and said second part when mixed form a microbicidal solution.

37. The composition of claim 36 wherein said second part further comprises minors.

38. The composition of claim 36 wherein said microbicidal solution further comprises a balance of makeup water.

39. The composition as claimed in claim 36 wherein at least one of said first part and said second part are in the form of a concentrate.