US 12,226,502 B2
Dyeing composition comprising a specific anthraquinone cationic direct dye, a cationic surfactant, an amphoteric or zwitterionic surfactant and a fatty alcohol
Valérie Nicou, Saint-Ouen (FR); Samira Rharbi, Saint-Ouen (FR); and Julie Blanc, Saint-Ouen (FR)
Assigned to L'OREAL, Paris (FR)
Appl. No. 18/013,790
Filed by L'Oreal, Paris (FR)
PCT Filed Jun. 29, 2021, PCT No. PCT/EP2021/067825
§ 371(c)(1), (2) Date Dec. 29, 2022,
PCT Pub. No. WO2022/002923, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2006860 (FR), filed on Jun. 30, 2020.
Prior Publication US 2023/0240955 A1, Aug. 3, 2023
Int. Cl. A61Q 5/10 (2006.01); A61K 8/34 (2006.01); A61K 8/35 (2006.01); A61K 8/73 (2006.01); A61K 8/89 (2006.01); A61Q 5/06 (2006.01)
CPC A61K 8/355 (2013.01) [A61K 8/342 (2013.01); A61K 8/73 (2013.01); A61K 8/89 (2013.01); A61Q 5/065 (2013.01); A61K 2800/432 (2013.01); A61K 2800/596 (2013.01)] 18 Claims
 
1. A composition for dyeing keratin fibers, comprising:
(a) at least one cationic direct dye of formula (I):

OG Complex Work Unit Chemistry
wherein:
R1, R2 and R3 are independently chosen from a hydrogen atom or an optionally substituted (C1-C8) alkyl group;
R4 represents a hydrogen atom or an optionally substituted (C1-C5) alkyl group;
R5 represents a hydrogen atom, an optionally substituted (C1-C8) alkyl group, an optionally substituted (C1-C8) alkylene group, a halogen, a hydroxyl group, or a (C1-C8) alkoxy group;
n represents a number between 1 and 8; and
Q− represents an organic or mineral anionic counterion,
(b) at least one cationic surfactant, wherein the total amount of cationic surfactants ranges from 0.1% to 15%,
(c) at least one amphoteric or zwitterionic surfactant, where the total amount of amphoteric and zwitterionic surfactants ranges from 0.1% to 20%, and
(d) at least one fatty alcohol,
wherein all amounts are by weight, relative to the total weight of the composition.