Granted Patent B2

US 12,589,063 · App. 18/704,698 · Granted Mar 31, 2026

Inventors: Anne Sabbagh (Saint-Ouen, FR); Valérie Nicou (Saint-Ouen, FR)

Assignee: L'Oreal

A61K8/411A61K8/31A61K8/342A61K8/415A61K8/42A61K8/442A61K8/894A61Q5/10C07C215/68C07C217/84A61K2800/882

Abstract

Claims (45)

1 . A composition comprising:

at least one oxidation base chosen from 2-γ-hydroxypropyl-para-phenylenediamine of formula (I), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof:

at least one oxidation coupler chosen from (i), (ii), or mixtures of two or more thereof:

(i) 2-amino-4-hydroxyethylaminoanisole of formula (II), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof; or

(ii) 2-amino-5-ethylphenol of formula (III), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof:

at least one amphoteric or zwitterionic surfactant, and

at least one solid fatty substance.

2 . The composition of claim 1 , wherein the total amount of oxidation base(s) 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) ranges from 0.001% to 20% by weight, relative to the total weight of the composition.

4 . The composition of claim 1 , wherein the weight ratio of the total amount of oxidation base(s) to the total amount of oxidation coupler(s) ranges from 0.5:1 to 5:1.

5 . The composition of claim 1 , wherein the at least one amphoteric or zwitterionic surfactant is chosen from (C 8 -C 20 ) alkylbetaines, (C 8 -C 20 ) alkylamido (C 3 -C 8 ) alkylbetaines, or mixtures of two or more thereof.

6 . The composition of claim 1 , wherein the total amount of amphoteric or zwitterionic surfactant(s) ranges from 0.01% to 20% by weight, relative to the total weight of the composition.

7 . The composition of claim 1 , further comprising at least one liquid fatty substance.

8 . The composition of claim 7 , wherein the at least one liquid fatty substance is 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.

9 . The composition of claim 1 , wherein the at least one solid fatty substance is chosen from solid fatty acids, solid fatty alcohols, solid esters of fatty acids, solid esters of fatty alcohols, waxes, ceramides, or mixtures of two or more thereof.

10 . The composition of claim 1 , further comprising at least one additional surfactant chosen from anionic surfactants, nonionic surfactants, or mixtures of two or more thereof.

11 . The composition of claim 1 , further comprising at least one nonionic surfactant.

12 . The composition of claim 1 , further comprising at least one sequestrant.

13 . The composition of claim 1 , further comprising at least one alkaline agent.

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

15 . The composition of claim 1 , further comprising at least one alkaline agent chosen from monoethanolamine, diethanolamine, or triethanolamine, or mixtures of two or more thereof.

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

17 . A method for dyeing keratin fibers, comprising:

(a) mixing a dyeing composition with an oxidizing composition,

wherein the dyeing composition comprises:

at least one oxidation base chosen from 2-γ-hydroxypropyl-para-phenylenediamine of formula (I), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof:

at least one oxidation coupler chosen from (i), (ii), or mixtures of two or more thereof:

(i) 2-amino-4-hydroxyethylaminoanisole of formula (II), addition salts thereof, solvates thereof, or solvates of salts thereof, or mixtures of two or more thereof; or

(ii) 2-amino-5-ethylphenol of formula (III), addition salt thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof:

and

at least one amphoteric or zwitterionic surfactant,

wherein the oxidizing composition comprises at least one chemical oxidizing agent, and

wherein at least one of the dyeing composition or the oxidizing composition comprises at least one solid fatty substance; and

b) applying the mixture to the keratin fibers.

18 . The method of claim 17 , wherein the dyeing composition comprises the at least one solid fatty substance.

19 . A multi-compartment kit for dyeing keratin fibers comprising at least two compartments, wherein:

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

at least one oxidation base chosen from 2-γ-hydroxypropyl-para-phenylenediamine of formula (I), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof:

at least one oxidation coupler chosen from (i), (ii), or mixtures of two or more thereof:

(i) 2-amino-4-hydroxyethylaminoanisole of formula (II), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof; or

(ii) 2-amino-5-ethylphenol of formula (III), addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures of two or more thereof:

and

at least one amphoteric or zwitterionic surfactant, and

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

wherein at least one of the dyeing composition or the oxidizing composition comprises at least one solid fatty substance.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (83)