IP Library › Granted Patent US 12,390,408
Granted Patent B2
US 12,390,408 · App. 18/266,726 · Granted Aug 19, 2025

Composition comprising two particular oxidation dye precursors, and a particular carboxylic acid

Inventors: Julie Blanc (Saint-Ouen, FR); Robin Protat (Saint-Ouen, FR)
Assignee: L'OREAL
A61K8/4926A61K8/22A61K8/411A61K8/413A61K8/415A61K8/44A61K8/602A61K8/922A61Q5/10A61K2800/882
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Quick Facts
Patent No.
US 12,390,408
App. No.
18/266,726
Granted
Aug 19, 2025
Kind
B2
Abstract

The invention relates to a composition comprising at least one oxidation coupler chosen from 6-hydroxybenzomorpholine of formula (I), one of its addition salts, its solvates and/or the solvates of its salts, at least one oxidation coupler chosen from 2-amino-5-ethylphenol of formula (II), one of its addition salts, its solvates and/or the solvates of its salts, and at least one compound chosen from N, N-dicarboxymethyl glutamic acid, one of its salts, and mixtures thereof. The invention also relates to a process for dyeing keratin fibres, preferably the hair, comprising the application of the composition to said keratin fibres.

Claims (37)

1. A composition comprising:

i) at least one oxidation coupler chosen from 6-hydroxybenzomorpholine of formula (I), addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof:

ii) at least one oxidation coupler chosen from 2-amino-5-ethylphenol of formula (II), addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof:

and

iii) at least one compound chosen from N,N-dicarboxymethyl glutamic acid, salts thereof, or mixtures of two or more thereof.

2. The composition of claim 1 , wherein the total amount of oxidation coupler(s) chosen from 6-hydroxybenzomorpholine of formula (I), addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof ranges from 0.001% to 20% by weight, relative to the total weight of the composition.

3. The composition of claim 1 , wherein the total amount of oxidation coupler(s) chosen from 2-amino-5-ethylphenol of formula (II), addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof ranges from 0.001% to 20% by weight, relative to the total weight of the composition.

4. The composition of claim 1 , comprising at least one oxidation base.

5. The composition of claim 4 , wherein the at least one oxidation base is chosen from para-phenylenediamines, bis (phenyl) alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, addition salts thereof, or mixtures of two or more thereof.

6. The composition of claim 5 , wherein the at least one oxidation base is chosen from 2-methoxymethyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, addition salts thereof, solvates thereof, solvates of their salts thereof, or mixtures of two or more thereof.

7. The composition of claim 4 , wherein the total amount of oxidation base(s) ranges from 0.001% to 20% by weight, relative to the weight of the composition.

8. The composition of claim 4 , wherein the weight ratio of the total amount of oxidation base(s) to the total amount of oxidation coupler(s) chosen from i) 6-hydroxybenzomorpholine of formula (I), addition salts thereof, solvates thereof, solvates of their salts thereof, or mixtures of two or more thereof, ii) 2-amino-5-ethylphenol of formula (II), addition salts thereof, solvates thereof, solvates of their salts thereof, or mixtures of two or more thereof, iii) or mixtures thereof ranges from 0.1 to 10.

9. The composition of claim 1 , wherein the at least one compound chosen from N,N-dicarboxymethyl glutamic acid, salts thereof, or mixtures of two or more thereof is chosen from alkali metal salts.

10. The composition of claim 1 , wherein the at least one compound chosen from N,N-dicarboxymethyl glutamic acid, salts thereof, or mixtures of two or more thereof is chosen from tetrasodium glutamate diacetate.

11. The composition of claim 1 , wherein the total amount of compound(s) chosen from N,N-dicarboxymethyl glutamic acid, salts thereof, or mixtures of two or more thereof ranges from 0.001% to 15% by weight, relative to the total weight of the composition.

12. The composition of claim 1 , further comprising at least one fatty substance chosen from liquid fatty substances, solid fatty substances, or mixtures of two or more thereof.

13. The composition of claim 12 , comprising at least one liquid fatty substance chosen from liquid hydrocarbons comprising more than 16 carbon atoms, plant oils, liquid fatty alcohols, liquid fatty esters, silicone oils, or mixtures of two or more thereof.

14. The composition of claim 12 , comprising at least one solid fatty substance chosen from solid fatty acids, solid fatty alcohols, solid esters of fatty acids and/or of fatty alcohols, waxes, ceramides, or mixtures of two or more thereof.

15. The composition of claim 1 , further comprising at least one surfactant chosen from anionic surfactants, non-ionic surfactants, or mixtures of two or more thereof.

16. The composition of claim 1 , further comprising at least one alkaline agent chosen from alkanolamines, ammonia, carbonates, bicarbonates, or mixtures of two or more thereof.

17. The composition of claim 1 , wherein the composition is free of chemical oxidizing agents.

18. The composition of claim 1 , further comprising at least one chemical oxidizing agent.

19. A method for dyeing keratin fibers, comprising:

a) mixing a dyeing composition (A) with an oxidizing composition (B), wherein the dyeing composition (A) comprises:

i) at least one oxidation coupler chosen from 6-hydroxybenzomorpholine of formula (I), one of addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof:

ii) at least one oxidation coupler chosen from 2-amino-5-ethylphenol of formula (II), one of addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof:

and

iii) at least one compound chosen from N,N-dicarboxymethyl glutamic acid, one of salts thereof, or mixtures thereof, and

wherein the oxidizing composition (B) comprises at least one chemical oxidizing agent; and

b) applying the mixture to keratin fibers.

20. A multi-compartment kit comprising:

(a) a first compartment comprising a dyeing composition comprising:

i) at least one oxidation coupler chosen from 6-hydroxybenzomorpholine of formula (I), addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof:

ii) at least one oxidation coupler chosen from 2-amino-5-ethylphenol of formula (II), addition salts thereof, solvates thereof, solvates of its salts thereof, or mixtures of two or more thereof:

and

iii) at least one compound chosen from N,N-dicarboxymethyl glutamic acid, one of salts thereof, or mixtures thereof, and

(b) a second compartment comprising an oxidizing composition comprising at least one chemical oxidizing agent.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2023
From: BLANC, JULIE; PROTAT, ROBIN
To: L'OREAL
Reel/Frame 064910/0461 →
Priority Claims (1)
FR 2013467 · Dec 17, 2020 · national
Continuity (1)
Related Publication 20240050347A1 · Feb 15, 2024
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Cited By (2)
US 12,589,063 US 12,642,755