US 12,144,878 B2
Multiple-compartment device comprising at least one internal frangible seal containing a keratin fibers dyeing composition
Shilpa Halder Joshi, Mumbai (IN); Amer Alkahwaji, Clark, NJ (US); Anand Mahadeshwar, Mumbai (IN); Soumyadip Paul, Mumbai (IN); and Chandra Bhan, Mumbai (IN)
Assigned to L'OREAL, Paris (FR)
Appl. No. 17/787,180
Filed by L'ORÉAL, Paris (FR)
PCT Filed Dec. 10, 2020, PCT No. PCT/IN2020/051015
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/124348, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 201921053251 (IN), filed on Dec. 20, 2019.
Prior Publication US 2023/0049617 A1, Feb. 16, 2023
Int. Cl. A61Q 5/10 (2006.01); A61K 8/22 (2006.01); A61K 8/41 (2006.01)
CPC A61K 8/22 (2013.01) [A61K 8/416 (2013.01); A61Q 5/10 (2013.01); A61K 2800/4322 (2013.01); A61K 2800/882 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multiple-compartment device comprising:
a closed envelope divided into at least two distinct compartments separated from one another by at least one internal frangible seal;
at least two flexible sidewalls secured together along their peripheral edges, defining a sealed perimeter and an internal volume for the at least two distinct compartments;
wherein the at least two distinct compartments comprise a first compartment and a second compartment;
wherein the first compartment comprises a composition (A) comprising:
a) at least one oxidation dye precursor;
b) at least one anionic surfactant;
c) at least one amphoteric surfactant chosen from betaine;
d) optionally, at least one anionic associative polymer;
e) optionally, at least one anionic non associative polymer; and
wherein the second compartment comprises an oxidizing composition (B) comprising at least one oxidizing agent.