Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound, a sealing reagent, and a polymer-containing post-treatment agent

US12329849B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Gabriele Weser · Neuss, DE
• Jing Hodes · Hagen, DE
• Leonie HANSEN · Dressendorf, DE
• Ulrike Schumacher · Dressendorf, DE
• Claudia Kolonko · Remscheid, DE
• Caroline Kriener · Dressendorf, DE
• Imme Breuer · Goldkronach, DE
• Angela Mueller · Grevenbroich, DE
• Marcus Claas · Hilden, DE
• Bernhard Banowski · Goldkronach, DE

Key dates

• Filing date: Jan 17, 2022
• Grant date: Jun 17, 2025
• Expiry date: Feb 27, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/95
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A method for dyeing keratinous material, such as human hair, may include applying a first agent to the keratinous material. The first agent may include at least one organosilicon compound from the group of silanes having one, two, or three silicon atoms, and at least one dyeing compound from the group of pigments and/or direct dyes. The method may further include applying a second agent to the keratinous material. The second agent may include at least one film-forming polymer. The method may also include applying a third agent to the keratinous material where the third agent may include a hydroxyamine-functionalized silicone polymer having the INCI name “Bis-Diisopropanolamino-PG-Propyl Disiloxane/Bis-Vinyl Dimethicone Copolymer”. At least one of the first and/or the second agents may include at least one dyeing compound from the group consisting of pigments and/or direct dyes.