US 12,102,703 B2
Hair dyeing composition comprising blue dyes
Susann Warmbier, Darmstadt (DE)
Assigned to KAO CORPORATION, Tokyo (JP)
Appl. No. 18/043,633
Filed by KAO CORPORATION, Tokyo (JP)
PCT Filed Sep. 20, 2021, PCT No. PCT/EP2021/075792
§ 371(c)(1), (2) Date Mar. 1, 2023,
PCT Pub. No. WO2022/069281, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 20199264 (EP), filed on Sep. 30, 2020.
Prior Publication US 2023/0270646 A1, Aug. 31, 2023
Int. Cl. A61Q 5/10 (2006.01); A61K 8/06 (2006.01); A61K 8/22 (2006.01); A61K 8/23 (2006.01); A61K 8/34 (2006.01); A61K 8/36 (2006.01); A61K 8/41 (2006.01); A61K 8/43 (2006.01); A61K 8/44 (2006.01); A61K 8/46 (2006.01); A61K 8/49 (2006.01)
CPC A61K 8/49 (2013.01) [A61K 8/062 (2013.01); A61K 8/22 (2013.01); A61K 8/23 (2013.01); A61K 8/342 (2013.01); A61K 8/361 (2013.01); A61K 8/411 (2013.01); A61K 8/43 (2013.01); A61K 8/44 (2013.01); A61K 8/466 (2013.01); A61Q 5/10 (2013.01); A61K 2800/5922 (2013.01); A61K 2800/882 (2013.01)] 20 Claims
 
1. A dyeing composition for keratin fibers, comprising:
one or more alkalizing agents;
HC Blue 18 and/or a salt thereof; and
tetrabromophenol blue and/or a salt thereof.