Powdery hair cosmetics

Patent metadata

Field	Value
Publication number	US-9370473-B2
Application number	US-201214364955-A
Country	US
Kind code	B2
Filing date	Nov 9, 2012
Priority date	Dec 16, 2011
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

Powdery compositions comprising core-shell particles are provided. The shell contains particles of at least one hydrophobized metal oxide powder and the liquid core contains, based on the weight of the core, about 20.0% by weight to 100.0% by weight, in particular about 50.0% by weight to 100.00% by weight, of at least one polyol of formula (I), wherein n represents an integer from 1 to 4. The powdery compositions are suitable for temporarily shaping keratin-containing fibers. For example, the use of said compositions on human hair resulted in an elastic hairstyle having volume. Hair so treated was given natural gloss.

First claim

The invention claimed is:

1. A powdered composition comprising core-shell particles whose shell contains particles of at least one hydrophobized metal oxide powder, and whose liquid core contains, based on the weight of the core, about 20.0 wt % to 100.0 wt % of at least one polyol of formula (I)

in which n denotes an integer from 1 to 4.

2. The powdered composition according to claim 1 , characterized in that the hydrophobized metal oxide of the hydrophobized metal oxide powder is chosen from hydrophobized silicates, hydrophobized aluminum silicates, hydrophobized titanium dioxide, and hydrophobized silicon dioxide.

3. The powdered composition according to claim 1 , characterized in that hydrophobized metal oxide powder is present in a quantity of from about 0.5 wt % to about 30 wt %, based on the weight of the total powdered composition.

4. The powdered composition according to claim 1 , characterized in that the hydrophobized metal oxide powder is chosen from hydrophobized silicates, hydrophobized aluminum silicates, hydrophobized titanium dioxide, and hydrophobized silicon dioxide.

5. The powdered composition according to claim 4 , characterized in that the hydrophobized metal oxide powder is silica silylate.

6. The powdered composition according to claim 1 , characterized in that the polyol of formula (I) is chosen from glycerol, threitol, erythritol, sorbitol, arabitol, altritol, ribitol, xylitol, galactitol, mannitol, iditol.

7. The powdered composition according to claim 1 , further containing a solvent.

8. The powdered composition according to claim 7 , characterized in that the solvent is water.

9. The powdered composition according to claim 7 , characterized in that the solvent is present in a quantity from 0 to about 40 wt %, based on the weight of the liquid core, in the powdered composition.

10. The powdered composition according to claim 9 , characterized in that the solvent is present in a quantity from 0 to about 20 wt %, based on the weight of the liquid core, in the powdered composition.

11. The powdered composition according to claim 10 , characterized in that the solvent is present in a quantity from 0 to about 10 wt %, based on the weight of the liquid core, in the powdered composition.

12. The powdered composition according to claim 1 , further comprising a mineral salt.

13. The powdered composition according to claim 1 , further comprising a setting polymer.

14. The powdered composition according to claim 1 , characterized in that the liquid core contains, based on the weight of the core, about 50.0 wt % to 100.0 wt % of the polyol of formula (I)

in which n denotes an integer from 1 to 4.

15. A method for the temporary deformation of keratin-containing fibers, the method comprising the steps of:
exposing a powdered composition, during or after application onto the keratin-containing fibers, to a mechanical load, whereby the powdered composition converts into a liquid, the powdered composition comprising core-shell particles whose shell contains particles of at least one hydrophobized metal oxide powder, and whose liquid core contains, based on the weight of the core, about 20.0 wt % to 100.0 wt % of at least one polyol of formula (I)

in which n denotes an integer from 1 to 4;
shaping the keratin-containing fibers
before, after, or during application of the powdered composition,

and/or
before, after, or during the mechanical load on the powdered composition,

wherein the shape of the keratin-containing fibers is temporarily retained by the powdered composition converted into said liquid.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Knappe Thorsten
• Henschel Anna

Classifications

• A61K2800/61

  Surface treated · CPC title

• A61Q5/06

  Preparations for styling the hair, e.g. by temporary shaping or colouring · CPC title

• A61K8/25

  Silicon; Compounds thereof · CPC title

• A61K2800/652

  The particulate/core comprising organic material · CPC title

• A61K8/022

  Powders; Compacted Powders · CPC title