US 12,390,408 B2
Composition comprising two particular oxidation dye precursors, and a particular carboxylic acid
Julie Blanc, Saint-Ouen (FR); and Robin Protat, Saint-Ouen (FR)
Assigned to L'OREAL, Paris (FR)
Appl. No. 18/266,726
Filed by L'Oreal, Paris (FR)
PCT Filed Dec. 16, 2021, PCT No. PCT/EP2021/086266
§ 371(c)(1), (2) Date Jun. 12, 2023,
PCT Pub. No. WO2022/129379, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 2013467 (FR), filed on Dec. 17, 2020.
Prior Publication US 2024/0050347 A1, Feb. 15, 2024
Int. Cl. A61Q 5/10 (2006.01); A61K 8/22 (2006.01); A61K 8/41 (2006.01); A61K 8/44 (2006.01); A61K 8/49 (2006.01); A61K 8/60 (2006.01); A61K 8/92 (2006.01)
CPC A61K 8/4926 (2013.01) [A61K 8/22 (2013.01); A61K 8/411 (2013.01); A61K 8/413 (2013.01); A61K 8/415 (2013.01); A61K 8/44 (2013.01); A61K 8/602 (2013.01); A61K 8/922 (2013.01); A61Q 5/10 (2013.01); A61K 2800/882 (2013.01)] 20 Claims
 
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:

OG Complex Work Unit Chemistry
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:

OG Complex Work Unit Chemistry
and
iii) at least one compound chosen from N,N-dicarboxymethyl glutamic acid, salts thereof, or mixtures of two or more thereof.