	US 12,357,549 B2
	Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound, a sealing reagent, and a pre-treatment agent
Jing Hodes, Hagen (DE); Gabriele Weser, Essen (DE); Ulrike Schumacher, Duesseldorf (DE); Claudia Kolonko, Remscheid (DE); and Caroline Kriener, Duesseldorf (DE)
Assigned to Henkel AG & Co. KGaA, Düesseldorf (DE)
Appl. No. 18/279,885
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
PCT Filed Jan. 17, 2022, PCT No. PCT/EP2022/050857 § 371(c)(1), (2) Date Sep. 1, 2023, PCT Pub. No. WO2022/184337, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 10 2021 202 048.8 (DE), filed on Mar. 3, 2021.
Prior Publication US 2024/0173222 A1, May 30, 2024
Int. Cl. A61Q 5/10 (2006.01); A61K 8/22 (2006.01); A61Q 5/06 (2006.01)

CPC A61K 8/22 (2013.01) [A61Q 5/065 (2013.01); A61K 2800/432 (2013.01); A61K 2800/596 (2013.01); A61K 2800/88 (2013.01)]

20 Claims

1. A method for dyeing keratinous material, the method comprising:

applying a first agent to the keratinous material, wherein the first agent comprises hydrogen peroxide and water;

applying a second agent to the keratinous material, wherein the second agent comprises at least one organosilicon compound selected from the group consisting of silanes having one, two, and three silicon atoms; and

applying a third agent to the keratinous material, wherein the third agent comprises at least one sealing reagent,

wherein at least one of the second agent or the third agent further comprises at least one dyeing compound.