Process of coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, and a sealing reagent vi

US11992546B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

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

Key dates

• Filing date: Mar 13, 2020
• Grant date: May 28, 2024
• Expiry date: Dec 4, 2040

Classification

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

Abstract

Provided herein is a process for dyeing keratinous material, in particular human hair, comprising the following steps: