Compositions for treating skin

Patent metadata

Field	Value
Publication number	US-9750674-B2
Application number	US-201113157665-A
Country	US
Kind code	B2
Filing date	Jun 10, 2011
Priority date	Jun 11, 2010
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A personal care composition comprising: at least a first phase and a second phase wherein said first phase comprises a) an aqueous structured surfactant phase comprising STnS where n is between about 0 and about 2.5; b) ; c) a structuring system comprising i. optionally, a non-ionic emulsifier; ii. optionally, from about 0.05% to about 5%, by weight of said personal care composition, of an associative polymer; iii. an electrolyte; and said second phase comprises a) a benefit phase comprising from 1% to about 50%, by weight of said personal care composition, of a hydrophobic benefit agent.

First claim

What is claimed is:

1. A personal care composition comprising at least a cleansing phase and a benefit phase wherein said cleansing phase comprises:
a) an aqueous structured surfactant phase comprising from about 5% to about 13%, by weight of said personal care composition, of STnS where n is between 0 and about 2.5;
b) at least one of the following: an amphoteric surfactant and a zwitterionic surfactant;
c) a structuring system comprising:
i. optionally, a non-ionic emulsifier;
ii. from about 0.05% to about 5%, by weight of said personal care composition, of an associative polymer;
iii. an electrolyte; and

said benefit phase comprises:
a) a benefit phase comprising from 0.1% to about 50%, by weight of said personal care composition, of a hydrophobic benefit agent comprising at least one of soybean oil, glycerol monooleate, petrolatum, and combinations thereof;

wherein said personal care composition is free of alkyl sulfate.

2. The personal care composition of claim 1 , wherein said personal care composition comprises from about 0.05% to about 0.5%, by weight of said personal care composition, of associative polymer.

3. The personal care composition of claim 2 , wherein said associative polymer comprises polyacrylates, hydrophobically modified polysaccharides, hydrophobically modified urethanes, and/or mixtures thereof.

4. The personal care composition of claim 3 , wherein said associative polymer comprises an alkyl acrylate polymer.

5. The personal care composition of claim 1 , wherein said nonionic emulsifier has an HLB of from about 3.4 to 13.0.

6. The personal care composition of claim 1 , wherein said nonionic emulsifier is selected from the group consisting of glyceryl monohydroxystearate, isosteareth-2, trideceth-2, trideceth-3, hydroxystearic acid, propylene glycol stearate, PEG-2 stearate, sorbitan monostearate, glyceryl laurate, laureth-2, cocamide monoethanolamine, lauramide monoethanolamine, and mixtures thereof.

7. The personal care composition of claim 1 , wherein the nonionic emulsifier comprises at least one of the following: trideceth-2 and trideceth-3.

8. The personal care composition of claim 1 , wherein the electrolyte comprises an anion selected from the group consisting of phosphate, chloride, sulfate, citrate, and mixtures thereof; and a cation selected from the group consisting of sodium, ammonium, potassium, magnesium, and mixtures thereof.

9. The personal care composition of claim 1 , wherein said electrolyte is selected from the group consisting of sodium chloride, ammonium chloride, sodium sulfate, ammonium sulfate, and mixtures thereof.

10. The personal care composition of claim 1 , wherein said personal care composition comprises from about 0.5 to about 5%, by weight of said personal care composition, of electrolyte.

11. The personal care composition of claim 1 , wherein said benefit phase is anhydrous.

12. The personal care composition of claim 1 , wherein said benefit agent is selected from the group consisting of petrolatum; lanolin; natural waxes; synthetic waxes; lanolin; derivatives of lanolin; volatile organosiloxanes; derivatives of volatile organosiloxanes; non-volatile organosiloxanes; derivatives of non-volatile organosiloxanes; lanolin oil; lanolin esters; natural triglycerides; synthetic triglycerides;
and combinations thereof.

13. The personal care composition of claim 1 , wherein said benefit agent has a Vaughan Solubility Parameter of from about 5 (cal/cm 3 ) 0.5 to about 15 (cal/cm 3 ) 0.5.

14. The personal care composition of claim 1 , wherein said benefit agent is selected from the group consisting of petrolatum, mineral oil, and mixtures thereof.

15. The personal care composition of claim 1 , wherein said benefit agent comprises soybean oil.

16. The personal care composition of claim 1 , wherein said benefit phase is substantially free of surfactant.

17. The personal care composition of claim 1 , wherein n is between about 1.1 and about 2.5.

18. The personal care composition of claim 1 , wherein n is about 2.

19. The personal care composition of claim 1 , wherein the aqueous structured surfactant phase comprises from about 5% to about 10%, by weight of the personal care composition, of STnS.

20. The personal care composition of claim 1 , wherein the benefit agent comprises glyceryl monooleate.

21. The personal care composition of claim 1 , wherein the aqueous structured surfactant phase has at least about a 90% lamellar structure.

22. The personal care composition of claim 1 , wherein the diluted 50% lamellar phase volume is about 80% or less.

23. The personal care composition of claim 1 , wherein the aqueous structured surfactant phase has a Zero Shear Viscosity of about 1000 Pa-s or more.

Assignees

• Wei Karl Shiqing
• Smith Iii Edward Dewey
• Mansfield Shawn Lynn
• Koenig Peter Herbert
• Ji Wei
• Suradkar Yogesh
• Bagchi Deepa
• Logou Sujatha
• Jones Stevan David
• Procter & Gamble

Inventors

• Wei Karl Shiqing
• Smith Iii Edward Dewey
• Mansfield Shawn Lynn
• Koenig Peter Herbert
• Ji Wei
• Suradkar Yogesh
• Bagchi Deepa
• Logou Sujatha
• Jones Stevan David

Classifications

• A61K8/463

  containing sulfuric acid derivatives, e.g. sodium lauryl sulfate · CPC title

• A61K8/922

  of vegetable origin · CPC title

• A61K8/416

  Quaternary ammonium compounds (A61K8/35 takes precedence) · CPC title

• A61K2800/30

  Characterized by the absence of a particular group of ingredients · CPC title

• A61K8/44

  Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof · CPC title