Mild cleanser and conditioner to yield soft smooth skin

• US 5,480,633 A
• Filed: 09/27/1993
• Issued: 01/02/1996
• Est. Priority Date: 12/02/1987
• Status: Expired due to Fees

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Simion, Frederick A., Rhein, Linda D., Cagan, Robert H., Babulak, Stephen W., Blake-Haskins, John C.
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): Spear, James M.
• Application Number:
  US08/126,751
• Time in Patent Office: 827 Days
• Field of Search: 424/73, 424/70.1, 424/70.31, 424/70.11
• US Class Current: 424/70.1
• CPC Class Codes: A61K 2800/75 Anti-irritant
• CPC Class Codes: A61K 8/39 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61K 8/8147 Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/002 Aftershave preparations
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 9/02 Shaving preparations

Abstract

A skin cleanser and conditioner composition and particularly a facial rinse that removes soap and surfactant residue from the skin and thereby prevents irritation caused by the deposition of soaps and surfactants thereon, consisting of low levels of a nonionic surfactant, low levels of an organic acid such as citric acid/sodium citrate, and a major amount of water, which composition may be in the form of a liquid or gel.

Claims

1. A liquid skin cleanser and conditioner composition consisting essentially of a major amount of about 84-98% by weight of water, about 0.25-6% by weight of a nonionic surfactant as the sole surfactant, about 0.05-5% by weight of an organic acid having a pKa from 4.5-6.5, said composition adjusted to have a pH of 4.5-6.5, whereby said composition is effective in reducing the deposition of soap and surfactant residue on the skin prior to such skin being washed with a soap or surfactant containing material or in removing soap and surfactant residue from skin after such skin has been washed with a soap or surfactant containing material and simultaneously conditions the skin to feel soft, smooth and moisturized.

2. The composition according to claim 1, wherein the nonionic surfactant is a water soluble ethoxylated nonionic surfactant selected from the group consisting of a polyglycol ether condensate of a C₈ -C₂₀ fatty alcohol or mixture of fatty alcohols with an average of 5 to 30 moles of ethylene oxide, and a polysorbate containing 20 moles of ethylene oxide.

7. The composition according to claim 2, wherein the nonionic surfactant constitutes 0.7-6% by weight of the composition having a pH of 5-6.

8. The composition according to claim 7, wherein the nonionic surfactant is a polyethylene glycol ether of a mixture of synthetic C₁₁ -C₁₅ fatty alcohols with an average of 9 moles of ethylene oxide.

9. The composition according to claim 7, wherein the nonionic surfactant is a polyethylene glycol ether of a mixture of synthetic C₁₂ -C₁₅ fatty alcohols with an average of 7 moles of ethylene oxide.

10. The composition according to claim 7, wherein the nonionic surfactant is a mixture of laurate or oleate esters of sorbitol and sorbitol anhydrides condensed with about 20 moles of ethylene oxide.

11. The composition according to claim 2 wherein the nonionic surfactant constitutes about 0.5-2.0% by weight of the composition.

12. The composition according to claim 1, wherein the organic acid is citric acid and constitutes about 0.1-2.0% by weight of the composition.

14. The composition according to claim 2, consisting of 0.77% by weight of nonionic surfactant, 0.54% by weight citric acid, and having a pH of 6.

18. The composition according to claim 1, in the form of a liquid pre-shave/skin conditioner to reduce the deposition of shaving cream soap on the skin.

21. The composition according to claim 1, in the form of a facial rinse cleanser and conditioner.

22. The composition according to claim 21, in the form of a liquid post-shave cleanser and conditioner.

27. The composition according to claim 1 wherein the organic acid is selected from the group consisting of citric acid, acetic acid, succinic acid and glutaric acid.

28. The composition according to claim 1 wherein the organic acid is citric acid and constitutes about 0.1-2.0% by weight of the composition.

3. A skin cleanser and conditioner composition consisting essentially of a major amount of about 84-98% by weight of water, about 0.25-6% by weight of a nonionic surfactant as the sole surfactant, about 0.05-5% by weight of an organic acid having a pKa from 4.5-6.5, said composition having a pH of 4.5-6.5, and a preservative system of 1,3-dimethyl-5,5 dimethyl hydantoin and disodium ethylene diamine-tetraacetate, in equal amounts, whereby said composition is effective in reducing the deposition of soap and surfactant residue on the skin prior to such skin being washed with a soap or surfactant containing material or in removing soap and surfactant residue from skin after such skin has been washed with a soap or surfactant containing material and simultaneously conditions the skin to feel soft, smooth and moisturized.

4. The composition according to claim 3, additionally containing about 0.1-4% by weight of a thickening agent selected from the group consisting of a diester of stearic acid and polyoxyethylene, and a polyacrylic acid resin.

5. The composition according to claim 4, in the form of a clear gel containing about 0.1-2% by weight of a polyacrylic acid resin.

6. The composition according to claim 4, in the form of a thick liquid containing about 2-4% by weight of a diester of stearic acid and polyoxyethylene.

13. The composition according to claim 3, wherein each of the ingredients in the preservative system constitutes about 0.3% by weight of the composition.

16. The composition according to claim 5, wherein the gel consists of 2% by weight nonionic surfactant, 1% by weight polyacrylic acid resin, 0.5% by weight citric acid, 0.3% by weight DMDM hydantoin, 0.3% by weight ethylene diamine tetra acetic acid and 95.9% by weight deionized water, having a pH of 6.

19. The composition according to claim 5, in the form of a gel pre-shave/skin conditioner for reducing the deposition of shaving cream soap on the skin and preventing or reducing skin irritation due to the soap.

20. The composition according to claim 6, in the form of a thick liquid pre-shave/skin conditioner to reduce both the deposition of shaving cream soap on the skin, and the skin irritation due to the soap.

23. The composition according to claim 5, in the form of a gel facial cleanser and conditioner.

24. The composition according to claim 23, in the form of a gel post-shave cleanser and conditioner.

25. The composition according to claim 6, in the form of a thick liquid facial cleanser and conditioner.

26. The composition according to claim 25, in the form of a thick liquid post-shave cleanser and conditioner.

15. A liquid skin cleanser and conditioner composition consisting essentially of a major amount of about 84-98 wt % by weight of water, about 0.25-6% by weight of a nonionic surfactant as the sole surfactant, about 0.05-5% by weight of an organic acid having a pKa from 4.5-6.5, said composition adjusted to have a pH of 4.5-6.5 and about 0.1-4% by weight of a thickening agent selected from the group consisting of a diester of stearic acid and polyoxyethylene and a polyacrylic acid;

resin whereby said composition is effective in reducing the deposition of soap and surfactant residue on the skin prior to such skin being washed with a soap or surfactant containing material or in removing soap and surfactant residue from skin after such skin has been washed with a soap or surfactant containing material and simultaneously conditions the skin to feel soft, smooth and moisturized.

17. A clear liquid skin cleanser and conditioner composition that reduces the deposition of soap and surfactant on the skin, removes soap and surfactant residue previously deposited on the skin, and simultaneously conditions the skin to feel soft, smooth and moisturized, said composition consisting essentially of major amount of about 84-98% by weight of water, about 0.25%-6% by weight of a nonionic surfactant as the sole surfactant, about 0.05%-5% by weight of a monovalent cation salt of an organic acid having a pKa from 4.5-6.5 or a mixture of said acid and said salt, said composition having a pH of 4.5-6.5 and about 0.1-4% by weight of a thickening agent selected from the group consisting of a diester of stearic acid and polyoxyethylene and a polyacrylic acid.

29. A clear liquid skin cleanser and conditioner composition that reduces the deposition of soap and surfactant on the skin, removes soap and surfactant residue previously deposited on the skin, and simultaneously conditions the skin to feel soft, smooth and moisturized, said composition consisting essentially of a major amount of about 84-98% by weight of water, about 0.25%-6% by weight of a nonionic surfactant as the sole surfactant, about 0.05-5% by weight of a monovalent cation salt of an organic acid having a pKa from 4.5-6.5 or a mixture of said salt and an organic acid having a pKa of from 405-6.5, said composition having a pH of 4.5-6.5.

30. The composition according to claim 29, wherein the nonionic surfactant is a water soluble ethoxylated nonionic surfactant selected from the group consisting of a polyglycol ether condensate of a C₈ -C₂₀ fatty alcohol or mixture of fatty alcohols with an average of 5 to 30 moles of ethylene oxide, and a polysorbate containing 20 moles of ethylene oxide.

31. The composition according to claim 29, additionally containing a preservative system of 1,3-dimethylol-5,5 dimethyl hydantoin and disodium ethylene diaminetetraacetate, in equal amounts.

32. The composition according to claim 31, additionally containing about 0.1-4% by weight of a thickening agent selected from the group consisting of a diester of stearic acid and polyoxyethylene, and a polyacrylic acid resin.

33. The composition according to claim 32, in the form of a clear gel containing about 0.1-2% by weight of a polyacrylic acid resin.

34. The composition according to claim 32, in the form of a thick liquid containing about 2-4% by weight of a diester of stearic acid and polyoxyethylene.

35. The composition according to claim 30, wherein the nonionic surfactant constitutes 0.7%-6% by weight of the composition having a pH of 5-6.

36. The composition according to claim 35, wherein the nonionic surfactant is a polyethylene glycol ether of a mixture of synthetic C₁₁ -C₁₅ fatty alcohols with an average of 9 moles of ethylene oxide.

37. The composition according to claim 35, wherein the nonionic surfactant is a polyethylene glycol ether of a mixture of synthetic C₁₂ -C₁₅ fatty alcohols with an average of 7 moles of ethylene oxide.

38. The composition according to claim 35, wherein the nonionic surfactant is a mixture of laurate or oleate esters of sorbitol and sorbitol anhydrides condensed with about 20 moles of ethylene oxide.

39. The composition according to claim 30, wherein the nonionic surfactant constitutes about 0.5-2% by weight of the composition.

40. The composition according to claim 31, wherein each of the ingredients in the preservative system constitutes about 0.3% by weight of the composition.

41. The composition according to claim 30, consisting of 1% nonionic surfactant, 2% sodium citrate, and having a pH of 5.

42. The composition according to claim 33, wherein the gel consists of 1% nonionic surfactant, 0.6% by weight polyacrylic acid resin, 0.1% by weight sodium citrate, 0.3% by weight DMDM hydantoin, 0.3% by weight ethylene diamine tetracetic acid and 97.7% deionized water, having a pH of 6.

43. The composition according to claim 29 in the form of a liquid preshave/skin conditioner to reduce the deposition of shaving cream soap on the skin.

44. The composition according to claim 33 in the form of a gel preshave/skin conditioner for reducing the deposition of shaving cream soap on the skin and preventing or reducing skin irritation due to the soap.

45. The composition according to claim 34 in the form of a thick liquid preshave/skin conditioner to reduce both the deposition of shaving cream soap in the skin, and the skin irritation due to the soap.

46. The composition according to claim 29 in the form of a facial rinse cleanser and conditioner.

47. The composition according to claim 46 in the form of a liquid post-shave cleanser and conditioner.

48. The composition according to claim 33 in the form of a gel facial cleaner and conditioner.

49. The composition according to claim 48 in the form of a gel post-shave cleanser and conditioner.

50. The composition according to claim 34, in the form of thick liquid facial cleanser and conditioner.

51. The composition according to claim 50 in the form of a thick liquid post-shave cleanser and conditioner.

52. The composition according to claim 29 wherein the organic acid is citric, acetic, succinic or glutaric acid or a combination thereof and the monovalent cation salt of the organic acid is the monovalent cation salt of citric, acetic, succinic or glutaric acid or a combination thereof.

53. The composition according to claim 29 wherein the organic acid is citric acid, the monovalent cation salt of the organic acid is sodium citrate, and said mixture constitutes about 0.1-2.0% by weight of the composition.