Two-part disinfecting systems and compositions and methods relating thereto

• US 6,916,493 B2
• Filed: 02/25/2003
• Issued: 07/12/2005
• Est. Priority Date: 05/16/2001
• Status: Expired due to Term

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Alcide Corp (Ecolab, Inc.)
• Inventors: Aldrich, Maura, Wiley, Jean, Morelli, Joseph, Morse, Cecilia Moser, Warf, C. Cayce Jr.
• Primary Examiner(s): PAK, JOHN D
• Application Number:
  US10/374,690
• Publication Number:
  US 20030180247A1
• Time in Patent Office: 868 Days
• Field of Search: 424/407, 424601-602, 424605-606, 424/661, 424/665, 424/666, 424/703, 424713-714, 424/718, 514553-560, 514/562, 514567-574, 514/576, 514/578, 514/601, 514/608, 514/665, 514708-711, 514/887, 514/964, 514/970, 514/973, 514/975, 210/754, 422/29, 422/37, 426/335, 426/532, 510/160, 510/161, 510/382, 510/383, 510/419
• US Class Current: 424/665
• 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 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/02 Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/36 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
• CPC Class Codes: A01N 37/40 having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
• CPC Class Codes: A01N 41/04 Sulfonic acids; Derivatives thereof
• CPC Class Codes: A01N 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• CPC Class Codes: A01N 59/26 Phosphorus; Compounds thereof

Abstract

A two-part disinfecting systems, as well as disinfecting compositions and methods for making and using the same. The two-part disinfecting system contains a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition, wherein the first part comprises a chlorite and the second part comprises an acid and an optional oxidizable colorant, and wherein the first part, the second part, or both the first and second parts comprise an alpha olefin sulfonate.

Claims

1. A two-part disinfecting system comprising a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition, wherein the first part comprises a chlorite and the second part comprises an acid, and wherein the first part, the second part, or both the first part and second parts contains an alpha olefin sulfonate, which is present in the first part, the second part, or both the first and second parts in an amount so that, when the first part and second part are combined, it is present within the disinfecting composition at a concentration ranging from about 0.005% to about 50% by weight, and wherein the acid is present in the second part in an amount so that, when combined with the first part, the PH of the disinfecting composition is below 5.

2. The system of claim 1 wherein the alpha olefin sulfonate is introduced into the first part, the second part, or both the first and second parts in an acid form of alpha olefin sulfonate.

3. The system of claim 1 wherein the alpha olefin sulfonate is introduced into the first part, the second part, or both the first and second parts in a salt form of alpha olefin sulfonate.

4. The system of claim 3 wherein the salt form of alpha olefin sulfonate is an alkali metal salt of alpha olefin sulfonate.

5. The system of claim 4 wherein the alkali metal salt of alpha olefin sulfonate is a sodium or potassium salt.

6. The system of claim 1 wherein the alpha olefin sulfonate has from 6 to 26 carbon atoms.

7. The system of claim 1 wherein the alpha olefin sulfonate has from 12 to 18 carbon atoms.

8. The system of claim 1 wherein the alpha olefin sulfonate has from 14 to 16 carbon atoms.

9. The system of claim 1 wherein the alpha olefin sulfonate is present in the first part, the second part, or both the first and second parts in an amount so that, when the first part and second part are combined, it is present within the disinfecting composition at a concentration ranging from 0.05% to 10% by weight.

10. The system of claim 1 wherein the alpha olefin sulfonate is present in the first part, the second part, or both the first and second parts in an amount so that, when the first part and second part are combined, it is present within the disinfecting composition at a concentration ranging from 0.1% to 5% by weight.

11. The system of claim 1 wherein the chlorite is a metal chlorite.

12. The system of claim 11 wherein the metal chlorite is an alkali or alkaline earth metal chlorite.

13. The system of claim 11 wherein the metal chlorite is sodium chlorite or potassium chlorite.

14. The system of claim 11 wherein the metal chlorite is sodium chlorite.

15. The system of claim 1 wherein the chlorite is present in the first part in an amount so that, when combined with the second part, it is present within the disinfecting composition at a concentration ranging from about 0.005% to about 3% by weight.

16. The system of claim 1 wherein the chlorite is present in the first part in an amount so that, when combined with the second part, it is present within the disinfecting composition at a concentration ranging from 0.05% to 0.5% by weight.

17. The system of claim 1 wherein the chlorite is present in the first part in an amount so that, when combined with the second part, it is present within the disinfecting composition at an concentration ranging from 0.1% to 0.4% by weight.

18. The system of claim 1 wherein the acid has a pK_a ranging from 2 to 5.

19. The system of claim 1 wherein the acid is an organic acid.

20. The system of claim 19 wherein the organic acid is glycolic acid, lactic acid, malic acid, mandelic acid, citric acid, tartaric acid, adipic acid, succinic acid, malonic acid, heptanoic acid, octanoic acid, nonanoic acid, benzoic acid, gluconic acid, or a mixture thereof.

21. The system of claim 1 wherein the acid is an inorganic acid.

22. The system of claim 21 wherein the inorganic acid is sulfuric acid, sulfamic acid, phosphoric acid, hydrochloric acid, nitric acid, or a mixture thereof.

23. The system of claim 1 wherein the acid is a mixture of an organic acid and an inorganic acid.

24. The system of claim 1 wherein the acid is present in the second part in an amount so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from about 0.1% to about 10% by weight.

25. The system of claim 1 wherein the acid is present in the second part in an amount so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from 0.5% to 5.0% by weight.

26. The system of claim 1 wherein the acid is present in the second part in an amount so that, when combined with the first part, it is present within the disinfecting composition at an concentration ranging from 1.0% to 3.0% by weight.

27. The system of claim 1 wherein the acid is present in the second part in an amount so that, when combined with the first part, the pH of the disinfecting composition ranges from 2 to below 5.

28. The system of claim 1 wherein the acid is present in the second part in an amount so that, when combined with the first part, the pH of the disinfecting composition ranges from 2.3 to 3.5.

29. The system of claim 1 wherein the first part and the second part are adapted to be combined in equal volumes.

30. The system of claim 1 wherein both the first part and the second part are in the form of an aqueous solution, emulsion, microemulsion, cream or gel.

31. The system of claim 1 wherein at least one of the first part or the second part is in a concentrated or solid form.

32. The system of claim 1 wherein the first part, the second part, or both the first and second parts further comprise a textural modifier, wetting agent, thickening agent, skin conditioner, healing agent, film-forming polymer, surfactant, preservative, or a mixture thereof.

33. A disinfecting composition formed by combining the first part and the second part of the two-part disinfecting system of claim 1.

34. A method for making a disinfecting composition comprising combining the first part and the second part of the two-part disinfecting system of claim 1.

35. The method of claim 34 wherein both the first part and the second part are in the form of an aqueous solution, emulsion, microemulsion, cream or gel.

36. The method of claim 34 wherein at least one of the first part or second part is in a concentrated of solid form.

37. The method of claim 36 wherein the concentrated or solid form is first diluted with or dissolved in water prior to contact with the other part.

38. A method for disinfecting a substrate comprising contacting the substrate with an effective amount of a disinfecting composition formed by mixing the two-part disinfecting system of claim 1.

39. The method of claim 38 wherein the substrate is skin or tissue of a warm-blooded animal.

40. The method of claim 38 wherein the substrate is a teat of a dairy cow, goat or sheep.

41. The method of claim 38 wherein the substrate is a hard surface.

42. The method of claim 38 wherein the substrate is a food surface or a surface in contact with food.

43. The method of claim 38 wherein the substrate is processing water.

44. The method of claim 38 wherein the substrate is cooling tower water.