Composition for altering the color of keratin fibers

Patent metadata

Field	Value
Publication number	US-10111816-B2
Application number	US-201514819350-A
Country	US
Kind code	B2
Filing date	Aug 5, 2015
Priority date	Aug 5, 2015
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

Disclosed are hair color bases, hair color compositions, and methods for altering the color of hair. Hair color bases comprise a buffer system including ammonium chloride, sodium metasilicate, ammonium hydroxide, and monoethanolamine (MEA). Hair color compositions comprise a hair base comprising a buffer system including ammonium chloride, sodium metasilicate, ammonium hydroxide, and monoethanolamine (MEA), and an oxidizing component.

First claim

What is claimed is:

1. A hair color base comprising an alkalizing buffer system, wherein the buffer system comprises, based on the total weight of the hair color base:
from about 3 wt % to about 12 wt % of ammonium chloride;
from about 1 wt % to about 5 wt % of sodium metasilicate;
from about 1 wt % to about 5 wt % of ammonium hydroxide; and
from about 1 wt % to about 5 wt % of monoethanolamine (MEA), and wherein the hair color base has a pH ranging from about 8.5 to about 10.

2. The hair color base according to claim 1 , having a pH in the range of about 9.0 to about 9.5.

3. The hair color base according to claim 1 , wherein the buffer system comprises, based on the total weight of the hair color base, from about 6 wt % to about 8 wt % of ammonium chloride, from about 2 wt % to about 4 wt % of sodium metasilicate, from about 2 wt % to about 4 wt % of ammonium hydroxide, and from about 2.5 wt % to about 4.5 wt % of MEA.

4. The hair color base according to claim 1 , wherein the hair color base further comprises at least one colorant compound.

5. The hair color base according to claim 4 , wherein the at least one colorant compound is chosen from oxidation dye precursors.

6. A hair color composition comprising:
a hair color base comprising an alkalizing buffer system, wherein the buffer system comprises, based on the total weight of the hair color base:
from about 3 wt % to about 12 wt % of ammonium chloride;
from about 1 wt % to about 5 wt % of sodium metasilicate;
from about 1 wt % to about 5 wt % of ammonium hydroxide; and
from about 1 wt % to about 5 wt % of monoethanolamine (MEA);

at least one oxidizing component, and
optionally at least one colorant, and
wherein the hair color base has a pH ranging from about 8.5 to about 10.

7. The hair color composition according to claim 6 , having a pH in the range of about 9.0 to about 9.5.

8. The hair color composition according to claim 6 , wherein the buffer system comprises, based on the total weight of the hair color base, from about 6 wt % to about 8 wt % of ammonium chloride, from about 2 wt % to about 4 wt % of sodium metasilicate, from about 2 wt % to about 4 wt % of ammonium hydroxide, and from about 2.5 wt % to about 4.5 wt % of MEA.

9. The hair color composition according to claim 6 , wherein the hair color base comprises at least one colorant.

10. The hair color composition according to claim 9 , wherein the at least one colorant is chosen from oxidation dye precursors.

11. A method for altering the color of hair, comprising contacting hair with a composition for a sufficient period of time to achieve a desired level of lift of the color of the hair, wherein the composition is formed from mixing (a) a hair color base comprising an alkalizing buffer system with (b) an oxidizing component, wherein:
the buffer system comprises, based on the total weight of the hair color base, from about 3 wt % to about 12 wt % of ammonium chloride, from about 1 wt % to about 5 wt % of sodium metasilicate, from about 1 wt % to about 5 wt % of ammonium hydroxide, and from about 1 wt % to about 5 wt % of monoethanolamine (MEA); and
the pH of the composition ranges from about 8.5 to about 10.

12. The method according to claim 11 , further comprising leaving the composition on the hair for a time period of up to about 60 minutes.

13. The method according to claim 11 , wherein the pH of the composition ranges from about 9.0 to about 9.5.

14. A multi-compartment kit for altering the color of the hair, comprising:
(a) a first compartment comprising a hair color base comprising an alkalizing buffer system, wherein the buffer system comprises, based on the total weight of the hair color base, from about 3 wt % to about 12 wt % of ammonium chloride from about 1 wt % to about 5 wt % of sodium metasilicate, from about 1 wt % to about 5 wt % of ammonium hydroxide, and from about 1 wt % to about 5 wt % of monoethanolamine (MEA), wherein the hair color base has a pH ranging from about 8.5 to about 10; and
(b) a second compartment comprising an oxidizing composition comprising at least one oxidizing agent.

15. The multi-compartment kit according to claim 14 , wherein the buffer system is configured to buffer a mixture of the hair color base and the alkaline oxidizing composition to a pH ranging from about 9.0 to about 9.5.

Assignees

• Oreal

Inventors

• Benn Mark
• Degeorge Michael

Classifications

• A61K8/492

  having condensed rings, e.g. indol · CPC title

• A61K8/22

  Peroxides; Oxygen; Ozone · CPC title

• A61K8/415

  Aminophenols · CPC title

• A61K8/41 Primary

  Amines · CPC title

• A61K8/25

  Silicon; Compounds thereof · CPC title