Method for dyeing keratinous material, comprising the use of an organosilicon compound, a phosphoric acid ester and a dyeing compound

US12201712B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Gabriele Weser · Neuss, DE
• Ulrike Schumacher · Dressendorf, DE
• Caroline Kriener · Dressendorf, DE
• Jing Hodes · Hagen, DE
• Claudia Kolonko · Remscheid, DE
• Phillip Jaiser · Langenfeld, DE
• Marc Nowottny · Genhülsen, DE
• Juergen Schoepgens · Schwalmtal, DE
• Carsten Mathiaszyk · Essen, DE
• Torsten Lechner · Langenfeld, DE

Key dates

• Filing date: May 27, 2021
• Grant date: Jan 21, 2025
• Expiry date: Jun 15, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/884
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair, comprising the following steps: