Coloring composition of keratinous fibers comprising at least one polysiloxane/polyurea block copolymer

• US 20080127429A1
• Filed: 10/25/2007
• Published: 06/05/2008
• Est. Priority Date: 10/25/2006
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Vrignaud, Sabine, Brun, Gaelle
• Granted Patent: US 7,799,093 B2
• Time in Patent Office: Days
• US Class Current: 8/435
• CPC Class Codes: A61K 2800/43 Pigments; Dyes
• CPC Class Codes: A61K 8/31 Hydrocarbons
• CPC Class Codes: A61K 8/34 Alcohols
• CPC Class Codes: A61K 8/35 Ketones, e.g. benzophenone
• CPC Class Codes: A61K 8/898 containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
• CPC Class Codes: A61Q 5/065 Preparations for temporary colouring the hair, e.g. direct dyes
• CPC Class Codes: A61Q 5/10 Preparations for permanently dyeing the hair

Abstract

Disclosed herein is a composition comprising at least one nonionic polysiloxane/polyurea block copolymer, at least one colored or coloring entity, and at least one volatile nonsilicone organic solvent. Such a composition may make it possible to obtain a coloring which is resistant to external agents.

Claims

1. A cosmetic composition comprising at least one nonionic polysiloxane/polyurea block copolymer, at least one colored or coloring entity, and at least one volatile nonsilicone organic solvent.

2. The composition of claim 1, further comprising at least one silicone compound having a viscosity of less than 100 mm²/s (100 cSt) at 25°

C.

3. The composition of claim 1, wherein the copolymer comprises at least one polyurethane block.

4. The composition of claim 1, wherein the copolymer comprises solely polysiloxane blocks and polyurea blocks.

5. The composition of claim 1, wherein the polysiloxane block of the copolymer is present in an amount by weight of polysiloxane of greater than 5%, relative to the total weight of the copolymer.

6. The composition of claim 5, wherein the polysiloxane block of the copolymer is present in an amount by weight of greater than 90% by weight, relative to the total weight of the copolymer.

7. The composition of claim 1, wherein the polysiloxane/polyurea copolymer is chosen from compounds of formula (I):

8. The composition of claim 7, wherein, in the formula (I), R is methyl.

9. The composition of claim 7, wherein, in the formula (I), X is propylene.

10. The composition of claim 7, wherein, in the formula (I), Z is chosen from amino radicals and oxygen.

11. The composition of claim 7, wherein, in the formula (I), Y is chosen from linear and cyclic aralkylene radicals and alkylene radicals.

12. The composition of claim 7, wherein, in the formula (I), A is —

NH—

in all the units (a).

13. The composition of claim 12, wherein A is —

NH—

in all the units (a), (b), and (c).

14. The composition of claim 1, wherein the copolymer is capable of being obtained by a process comprising:

reacting a cyclic silazane chosen from silazanes of formulas (2) and (2′

);

15. The composition of claim 1, wherein the copolymer corresponds to the INCI name polyureadimethicone.

16. The composition of claim 1, wherein the volatile nonsilicone organic solvent is chosen from ethanol, isopropanol, acetone, and isododecane.

17. The composition of claim 2, wherein the at least one silicone compound having a viscosity of less than 100 cSt is chosen from octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethylethyltrisiloxane, heptamethyloctyltrisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, and mixtures thereof.

18. The composition of claim 1, wherein the colored or coloring entity is chosen from colored pigments, dye precursors, hydrophilic direct dyes, and hydrophobic direct dyes.

19. The composition of claim 1, wherein the colored entity is chosen from organic pigments, inorganic pigments, and pearlescent agents.

20. The composition of claim 1, further comprising at least one polysiloxane having a viscosity of greater than 100 cSt.

21. The composition of claim 1, further comprising at least one filler.

22. The composition of claim 1, further comprising at least one nonsilicone polymer.

23. The composition of claim 12, wherein the nonsilicone polymer is chosen from anionic, nonionic, and amphoteric polymers.

24. A method for coloring keratinous fibers, comprising applying to the fibers a composition comprising at least one nonionic polysiloxane/polyurea block copolymer, at least one colored or coloring entity, and at least one volatile nonsilicone organic solvent.