US 12,257,330 B2
Hair coloring compositions and methods of use
Heather Lee, Wayne, NJ (US); Dongcui Li, Metuchen, NJ (US); Jun Liang, Staten Island, NY (US); Sarah Barrie Machover, New-York, NY (US); and Sangeeta Gaikwad, Powai (IN)
Assigned to L'OREAL, Paris (FR)
Filed by L'OREAL, Paris (FR)
Filed on Dec. 31, 2019, as Appl. No. 16/731,870.
Claims priority of provisional application 62/786,887, filed on Dec. 31, 2018.
Prior Publication US 2020/0206112 A1, Jul. 2, 2020
Int. Cl. A61K 8/34 (2006.01); A61K 8/37 (2006.01); A61K 8/41 (2006.01); A61K 8/49 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61Q 5/10 (2006.01)
CPC A61K 8/345 (2013.01) [A61K 8/342 (2013.01); A61K 8/375 (2013.01); A61K 8/416 (2013.01); A61K 8/4946 (2013.01); A61K 8/731 (2013.01); A61K 8/8135 (2013.01); A61K 8/8182 (2013.01); A61Q 5/10 (2013.01); A61K 2800/31 (2013.01); A61K 2800/34 (2013.01); A61K 2800/4324 (2013.01); A61K 2800/48 (2013.01)] 3 Claims
 
1. A coloring composition that is substantially anhydrous comprising:
(a) one or more colorants comprising at least one of an oxidative dye precursor, a coupler, a direct dye, or a combination thereof;
(b) about 50 to about 90 wt. % of one or more glycols;
(c) about 5 to about 30 wt. % of one or more monoalcohols chosen from ethanol, isopropyl alcohol, and a mixture thereof;
wherein the weight ratio of the glycol(s) to the monoalcohol(s) (glycol(s): monoalcohol(s)) is from 20:1 to 2:1;
(d) about 0.1 to about 10 wt. % of one or more cationic surfactants;
(e) about 1 to about 20 wt. % of one or more fatty compounds;
wherein the composition comprises less than 5 wt. % of water;
the composition is a solubilized, non-emulsified composition until applied to the wet or damp hair, whereupon the composition forms a lamellar phase in situ; and
all percentages by weight are based on the total weight of the composition.