IP Library › Granted Patent US 12,396,938
Granted Patent B2
US 12,396,938 · App. 18/459,295 · Granted Aug 26, 2025

Compositions and methods for coloring hair

Inventors: Mahima Wadhwani (Moonachie, NJ); Mohamed Amer Alkahwaji (Hoboken, NJ); Emma Howes (Lake Hiawatha, NJ)
Assignee: L'OREAL
A61K8/411A61Q5/10A61K2800/30A61K2800/4324A61K2800/596
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Quick Facts
Patent No.
US 12,396,938
App. No.
18/459,295
Granted
Aug 26, 2025
Kind
B2
Abstract

The present disclosure relates to hair coloring base compositions and ready-to-use hair coloring compositions comprising 2-methoxymethyl-P-phenylenediamine, an oxidative dye precursor. The hair coloring base composition is mixed with a developer composition to form a ready-to-use hair coloring composition. These compositions are effective for coloring or toning hair. The color imparted to the hair is long-lasting (tenacious), neutralizing, and gentle. Methods for making the composition and methods for coloring hair are also disclosed.

Claims (54)

1. A hair coloring base composition comprising:

(a) 2-methoxymethyl-P-phenylenediamine, and optionally one or more additional oxidative dye precursors;

(b) one or more couplers; and

(c) one or more alkalizing agents;

(d) optionally, one or more fatty alcohols having from 12 to 24 carbon atoms;

(e) about 10 to about 40 wt. % of a plurality of surfactants, the plurality of surfactants comprising:

(e)(1) about 10 to about 35 wt. % of one or more nonionic surfactants; and

(e)(2) about 0.1 to about 15 wt. % of one or more anionic surfactants;

(f) one or more water-soluble organic solvents;

(g) water; and

(h) not more than about 10 wt. % of one or more fatty compounds other than the one or more fatty alcohols of (d);

wherein (e), (f), and (g) are in amounts such that a combined amount of (e), (f), and (g) constitutes at least 70 wt. % of the hair coloring base composition, and

all percentages by weight are based on a total weight of the hair coloring composition.

2. The hair coloring base composition of claim 1 , wherein the plurality of surfactants of (e) are in an amount of about 15 to about 35 wt. %.

3. The hair coloring base composition of claim 1 , wherein the alkalizing agent is an organic alkalizing agent.

4. The hair coloring base composition of claim 1 , wherein the one or more alkalizing agents are chosen from alkanolamines.

5. The hair coloring base composition of claim 1 being free from ammonia and ammonium ions.

6. The hair coloring base composition of claim 1 , wherein the composition comprises the one or more fatty alcohols of (d) in an amount of about 0.1 to about 15 wt. %.

7. The hair coloring base composition of claim 1 comprising less than 0.1 wt. % of the one or more fatty alcohols of (d).

8. The hair coloring base composition of claim 1 , wherein the plurality of surfactants comprises:

(e)(1) about 12 to about 30 wt. % of one or more nonionic surfactants;

(e)(2) about 0.1 to about 12 wt. % of one or more anionic surfactants; and

(e)(3) optionally, one or more amphoteric surfactants.

9. The hair coloring base composition of claim 8 , wherein the plurality of surfactants includes the one or more amphoteric surfactants of (e) (3).

10. The hair coloring base composition of claim 1 having a pH ranging from about 7 to about 10.4.

11. The hair coloring base composition of claim 1 , wherein at least one of the plurality of surfactants is selected from coco-betaine, ppg-5-ceteth-10 phosphate, deceth-3, lauryl alcohol, cocamide mipa, sodium c14-16 olefin sulfonate, or a combination thereof.

12. The hair coloring base composition of claim 1 , wherein at least one the one or more couplers are selected from 2-methyl-5-hydroxyethylaminophenol, 2,4-diaminophenoxyethanol hcl, 4-amino-2-hydroxytoluene, 2-amino-3-hydroxypyridine, m-aminophenol, 5-amino-6-chloro-o-cresol, 1-naphthol, or combinations thereof.

13. The hair coloring base composition of claim 1 , further comprising one or more miscellaneous ingredients, where at least one of the one or more miscellaneous ingredients is an amino acid selected from taurine, alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine, or combinations thereof.

14. The hair coloring base composition of claim 1 , further comprising one or more miscellaneous ingredients, where at least one of the one or more miscellaneous ingredients is a carboxylic acid selected from oxalic acid, malonic acid, glutaric acid, succinic acid, adipic acid, glycolic acid, citric acid, tartaric acid, malic acid, sebacic acid, maleic acid, fumaric acid, benzoic acid, citraconic acid, aconitic acid, propane-1,2,3-tricarboxylic acid, trimesic acid, or combinations thereof.

15. A ready-to-use hair coloring composition comprising a mixture of:

(i) the hair coloring base composition of claim 1 ; and

(ii) a developer composition comprising:

(a) one or more oxidizing agents; and

(b) water.

16. A method for making a ready-to-use hair coloring composition comprising mixing the hair coloring base composition of claim 1 with a developer composition in a weight ratio of about 1:5 to about 5:1 (hair coloring base composition: developer composition) to form a ready-to-use hair coloring composition, wherein the developer composition comprises:

(a) one or more oxidizing agents; and

(b) water.

17. A kit comprising:

(i) one or more hair coloring base compositions of claim 1 ; and

(ii) one or more developer compositions comprising:

(a) one or more oxidizing agents; and

(b) water;

wherein the one or more hair coloring base compositions of (i) and the one or more developer compositions of (ii) are separately contained.

18. A method for coloring hair comprising:

(i) obtaining the hair coloring base composition of claim 1 ;

(ii) obtaining a developer composition comprising:

(a) one or more oxidizing agents; and

(b) water;

(iii) mixing the hair coloring base composition of (i) and the developer composition of (ii) in a weight ratio of about 1:5 to about 5:1 to form a ready-to-use hair coloring composition having a pH of about 6 to about 8; and

(iv) applying the ready-to-use hair coloring composition to hair,

(v) allowing the ready-to-use hair coloring composition to remain on the hair for a period of time, wherein the period of time is less than 30 minutes; and

(vi) after the period of time has lapsed, rinsing the ready-to-use hair coloring composition from the hair.

19. The hair coloring composition of claim 1 , wherein the combined amount of (e), (f), and (g) constitutes at least 80 wt. % of the hair coloring base composition.

20. The hair coloring composition of claim 1 , wherein the plurality of surfactants are in an amount of at least 24 wt. %.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2024
From: WADHWANI, MAHIMA; ALKAHWAJI, MOHAMED AMER; HOWES, EMMA
To: L'OREAL
Reel/Frame 067537/0473 →
Priority Claims (1)
FR 2210418 · Oct 11, 2022 · national
Continuity (2)
Provisional Application 63402686 · Aug 31, 2022
Related Publication 20240065956A1 · Feb 29, 2024
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