Skin cleansing and moisturizing composition and method of using and preparing same

• US 4,992,476 A
• Filed: 04/04/1988
• Issued: 02/12/1991
• Est. Priority Date: 04/04/1988
• Status: Expired due to Fees

• Current Assignee: Warner-Lambert Company (Pfizer Inc.)
• Original Assignee: Warner-Lambert Company (Pfizer Inc.)
• Inventors: Geria, Navin M.
• Primary Examiner(s): Robinson, Douglas W.
• Assistant Examiner(s): Witz, Jean C.
• Application Number:
  US07/176,907
• Time in Patent Office: 1,044 Days
• Field of Search: 424/107, 424/195.1, 514/817, 514/844, 514/845, 514/846, 514/847, 514/848
• US Class Current: 514/782
• CPC Class Codes: A61K 2800/28 Rubbing or scrubbing compositions; Peeling or abrasive compositions; Containing exfoliants
• CPC Class Codes: A61K 8/26 Aluminium; Compounds thereof
• CPC Class Codes: A61K 8/39 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61K 8/8111 Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers
• 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: A61K 8/86 Polyethers
• CPC Class Codes: A61K 8/92 Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations

Abstract

A long lasting, esthetically pleasing skin cleansing and care moisturizing composition comprising

(1) an oil phase comprising oil from about 30% to about 80% and a non-ionic surface active agent having an HLB number of about 7 to about 12, wherein the non-ionic surface active agent is present in an amount of about 5% to about 9%;

(2) an aqueous phase comprising an aqueous thickening agent from about 0.05% to about 5% and water from about 15% to about 65% wherein the oil phase is added to the aqueous phase to form an emulsion has been developed,

(3) an effective amount of an abrasive to remove oily deposits, cosmetics and particulates from the skin surface.

The method of preparation of the composition and a method of treating skin with the composition are also disclosed.

Claims

1. A cleansing and moisturizing, occlusive skin care composition comprising, based on total weight of said composition:

(1) an oil phase comprising oil selected from the group consisting of animal oils, vegetable oils, mineral oils, synthetic oils and mixtures thereof in an amount of from about 55% to about 75% and from about 5% to about 9% of a non-ionic surface active agent having an HLB number of about 7 to 12 and

(2) an aqueous phase comprising an aqueous thickening agent selected from the group consisting of natural gums, synthetic gums, gelling agents and mixtures thereof in an amount of from about 0.05% to about 5% and water from about 20% to about 40%.

and

(3) an effective amount of an abrasive to remove oily deposits, cosmetics and particulates from skin surface, wherein said composition is prepared by

(a) forming said oil phase by dissolving said non-ionic surface active agent into said oil and heating to about 60°

C. to about 80°

C. to facilitate solution;

(b) forming said aqueous phase by dispersing said aqueous thickening agent in water and heating to about 60°

C. to about 80°

C. to facilitate dispersing; and

(c) forming a stable oil-in-water emulsion by adding said oil phase to said aqueous phase with high shear mixing while maintaining said elevated temperature, wherein the addition of said oil phase to said aqueous phase is at a slow, uniform rate of at least about 10 minutes.

4. The skin care composition of claim 1

wherein said aqueous phase further comprises an effective amount of a neutralizing agent.

5. A method of treating dry skin which comprises applying to the skin an effective amount of the cleansing and moisturizing skin care composition of claim 1 and

(B) washing the treated skin with water.

6. The composition of claims 1 or 4 wherein the oil is an animal oil selected from the group consisting of lanolin, fatty acid esters, fish oil, whale, oil, fish liver oil, seal oil, squalane and mixtures thereof.

7. The composition of claims 1 or 4 wherein the oil is a vegetable oil selected from the group consisting of castor oil, linseed oil, sunflower oil, soybean oil, olive oil, peanut oil, rapeseed oil, corn oil, safflower seed oil, cottonseed oil, coconut oil, palm oil, palm kernel oil, sweet almond oil, calophyllum oil, avacado oil, cerial germ oil, purcellin oil, and mixtures thereof.

8. The composition of claims 1 or 4 wherein the oil is a mineral oil selected from the group consisting of white mineral oil, parafin oil, petroleum jelly oil, petrolatum and mixtures thereof.

9. The composition of claims 1 or 4 wherein the oil is a synthetic oil selected from the group consisting of silicone oils, dimethylpolysiloxane, cyclic silicones, methylphenylpolysiloxane, silicone-glycol copolymer and mixtures thereof.

10. The composition of claims 1 or 4 wherein the non-ionic surface active agent is selected from the group consisting of alkanolamides, polyoxyethylenes, polyoxyethylene fatty acid esters, polyethyleneglycol derivatives, polyethyleneimine derivatives, ethoxylated hydrogenated castor oils.

11. The composition of claims 1 or 4 wherein the non-ionic surface active agent is selected from the group consisting of polyoxyethylene (2) stearyl ether, POE (2) oleyl ether, PPG (5) ceteth 20, POE (5) stearate, POE (20) stearyl ether and mixtures thereof.

12. The composition of claims 1 or 4 wherein the aqueous thickening agent is a natural gum selected from the group consisting of alginates, carrageenan, xanthan gum, gelatin, guar, gum arabic, carob, tragacanth, locust bean gum, karaya, pectin, agar, and mixtures thereof.

13. The composition of claims 1 or 4 wherein the aqueous thickening agent is a synthetic gum selected from the group consisting of cellulose ethers and esters, methylcellulose, sodium carboxymethylcellulose, carboxymethylcellulose, hydroxypropylcellulose, carbomers and carbopol and mixtures thereof.

14. The composition of claims 1 or 4 wherein the aqueous thickening agent is selected from the group consisting of colloidal hydrated aluminum silicate, bentonite ,synthetic hectorite, laponite, colloidal silica and mixtures thereof.

15. The composition of claim 4 wherein the neutralizing is selected from the group consisting of basic alkali metal salts, basic alkaline earth metal salts, basic amine compounds and mixtures thereof.

16. The composition of claim 4 wherein the neutralizing agent is selected from the group consisting of alkali metal and alkaline earth metal hydroxides and carbonates, triethanol amine isopropylamine and mixtures thereof.

31. The composition of claims 1 or 4 wherein the oil is mineral oil.

33. The composition of claims 1 or 4 wherein the abrasive is selected from the group consisting of pumice, cross-linked polystyrene, polymethylmethacrylate, polyethylene, aluminum oxide particles, polyester fibers and mixtures thereof.

2. A method for preparing an occlusive cleansing and moisturizing skin care composition comprising, based on total weight of said composition:

(a) forming an oil phase by dissolving about 5% to about 9% by weight of a non-ionic surface active agent having an HLB number of about 7 to about 12 into about 55% to about 75% by weight of an oil and heating to about 60°

C. to about 80°

C. to facilitate solution,

(b) forming an aqueous phase by dispersing about 0.05% to about 5% by weight of an aqueous thickening agent in about 20% to about 40% by weight of water and heating to about 60°

C. to about 80°

C. to facilitate dispersing,

(c) forming an emulsion by slowly adding said oil phase to said aqueous phase with high sheer mixing while maintaining said elevated temperature, wherein addition of said oil phase to said aqueous phase is at a slow uniform rate of at least about 10 minutes such that a stable oil-in-water emulsion is formed;

(d) admixing an effective amount of an abrasive to remove oily deposits, cosmetics and particulates from the skin surface, and

(e) recovering said skin care composition.

3. The method of claim 2 further comprising the step of neutralizing said oil-in-water emulsion by adding an effective amount of a neutralizing agent.

17. The method of claims 3 or 5 wherein the neutralizing agent is selected from the group consisting of basic alkali metal, basic alkaline earth metal salts, basic amine compounds and mixtures thereof.

18. The method of claims 3 or 5 wherein the neutralizing agent is selected from the group consisting of alkali metal and alkaline earth metal hydroxides and carbonates, triethanolamine, isopropylamine and mixtures thereof.

19. The method of claims 2, 3, or 5 wherein the oil is an animal oil selected from the group consisting of lanolin, fatty acid esters, fish oil, whale oil, fish liver oil, seal oil, squalane and mixtures thereof.

20. The method of claims 2, 3, or 5 wherein the oil is a vegetable oil selected from the group consisting of castor oil, linseed oil, sunflower oil, soybean oil, olive oil, peanut oil, rapeseed oil, corn oil, safflower seed oil, cottonseed oil, coconut oil, palm oil, palm kernel oil, sweet almond oil, calophyllum oil, avacado oil, cerial germ oil, purcellin oil, and mixtures thereof.

21. The method of claims 2, 3, or 5 wherein the oil is a mineral oil selected from the group consisting of white mineral oil, parafin oil, petroleum jelly oil, petrolatum and mixtures thereof.

22. The method of claims 2, 3, or 5 wherein the oil is a synthetic oil selected from the group consisting of silicone oils, dimethylpolysiloxane, cyclic silicones, methylphenylpolysiloxane, silicone-glycol copolymer and mixtures thereof.

23. The method of claims 2, 3, or 5 wherein the non-ionic surface active agent is selected from the group consisting of alkanolamides, polyoxyethylenes, polyoxyethylene fatty acid esters, polyethyleneglycol derivatives, polyethyleneimine derivatives ethoxylated hydrogenated castor oils.

24. The method of claims 2, 3, or 5 wherein the non-ionic surface active agent is selected from the group consisting of polyoxyethylene (2) stearyl ether, POE (2) oleyl ether, PPG (5) ceteth 20, POE (5) stearate, POE (20) stearyl ether and mixtures thereof.

25. The method of claims 2 or 3 wherein the aqueous thickening agent is a natural gum selected from the group consisting of natural gums, synthetic gums, gelling agents, mixtures thereof.

26. The method of claims 2, 3, or 5 wherein the aqueous thickening agent is a natural gum selected from the group consisting of alginates, carrageenan, xanthan gum, gelatin, guar, gum arabic, carob, tragacanth, locust bean gum, karaya, pectin, agar, and mixtures thereof.

27. The method of claims 2, 3, or 5 wherein the aqueous thickening agent is a synthetic gum selected from the group consisting of cellulose ethers and esters, methylcellulose, sodium carboxymethylcellulose, carboxymethylcellulose, hydroxypropylcellulose, carbomers and carbopol and mixtures thereof.

28. The method of claims 2, 3, or 5 wherein the aqueous thickening agent is selected from the group consisting of colloidal hydrated aluminum silicate, bentonite, synthetic hectorite, laponite colloidal silica and mixtures thereof.

29. The method of claim 3 wherein the neutralizing agent is selected from the group consisting of basic alkali metal salts, basic alkaline earth metal salts, basic amine compounds and mixtures thereof.

30. The method of claim 3 wherein the neutralizing agent is selected from the group consisting of alkali metal and alkaline earth metal hydroxides and carbonates, triethanol amine, isopropylamine and mixtures thereof.

32. The method of claims 2, 3, or 5 wherein the oil is mineral oil.

34. The composition of claims 2, 3, or 5 wherein the abrasive is selected from the group consisting of pumice, cross-linked polystyrene, polymethylmethacrylate, polyethylene, aluminum oxide particles, polyester fibers and mixtures thereof.