Shampoo compositions

• US 20060120982A1
• Filed: 11/03/2003
• Published: 06/08/2006
• Est. Priority Date: 12/11/2002
• Status: Abandoned Application

• Current Assignee: Unilever Home & Personal Care USA (Unilever PLC)
• Original Assignee: Unilever Home & Personal Care USA (Unilever PLC)
• Inventors: Tan-Walker, Ruby Loo, Bick, Derici, Leo, Shaw, Neil Scott, Jenkins, Paul David
• Application Number:
  US10/538,188
• Publication Number:
  US 20060120982A1
• Time in Patent Office: Days
• US Class Current: 424/70.120
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61K 8/898 containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners

Abstract

Aqueous hair conditioning compositions comprising a) from 1% to 50% by weight of a cleansing surfactant, b) discrete, dispersed droplets comprising a water insoluble silicone conditioning oil, with a Sauter mean diameter from 2 to 100 micrometres and c) a surface active block copolymer according to Formula (I): HO(CH₂CH₂O)m[—Si(CH₃)2^−O−]n(CH₂CH₂0)m H wherein m is 30 or more, n is 5 or more and the ratio n/m is from 0.1 to 1.2, provide improved conditioning of hair tips.

Claims

1. An aqueous hair conditioning composition comprising;

a) from 1% to 50% by weight of a cleansing surfactant,

b) discrete, dispersed droplets comprising a water insoluble silicone conditioning oil, wherein the Sauter mean diameter of the droplets (D₃,₂) is from 2 to 100 micrometres and

c) a surface active block copolymer according to formula I;

HO(CH₂CH₂O)_m[—

Si(CH₃)₂—

O—

]_n(CH₂CH₂O)_mH 

 

I

wherein m is 30 or more, n is 5 or more and the ratio n/m is from 0.1 to 1.2.

2. A composition according to claim 1 comprising from 0.01% to 0.4% by weight of the surface active block copolymer.

3. A composition according to claim 1 wherein the silicone conditioning oil has a viscosity from 5000 to 1000000 mm² sec⁻

1 at 25°

C.

4. A composition according to claim 1 wherein the silicone conditioning oil comprises a functionalised silicone.

5. A composition according to claim 4 wherein the functionalised silicone is a silicone copolyol with an HLB of 10 or less.

6. A composition according to claim 4, wherein the functionalised silicone is an amino-functionalised silicone.

7. A composition according to claim 6 wherein the amino-functionalised silicone has a weight percent amino functionality from 0.03 to 8, preferably from 0.5 to 4 percent.

8. A composition according to claim 1 wherein the composition comprises less than 0.01% by weight of a cationic deposition polymer.

9. A composition according to claim 1 wherein the cleansing surfactant is selected from the group consisting of anionic, amphoteric, zwitterionic and nonionic surfactants and mixtures thereof.

10. A method for preparing an aqueous hair conditioning composition according to claim 1 comprising the steps of:

i) preparing a solution comprising water and the surface active block copolymer,

ii) adding a silicone conditioning oil to the solution,

iii) forming the solution and the silicone conditioning oil into an oil-in-water emulsion by high-shear mixing,

iv) dispersing the oil-in-water emulsion comprising the block copolymer into a hair conditioning composition.

11. A method for preparing a hair conditioning composition according to claim 1 comprising the steps of:

i) preparing an oil-in-water emulsion of a silicone conditioning oil,

ii) dispersing the surface active block copolymer into the emulsion,

iii) dispersing the oil-in-water emulsion comprising the block copolymer into a hair conditioning composition.

12. The use of a composition according to any one of claims claim 1 for cleaning and conditioning hair.

13. A method of cleaning and conditioning hair by applying a composition according to claim 1 followed by rinsing.

14. The use of a composition according to claim 1 for improving the deposition of silicone conditioning oil onto the tip region of hair relative to the root region of hair.