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

US11883518B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Rene Krohn · Norderstedt, DE
• Thomas Hippe · Appen, DE
• Jessica BRENDER · Hamburg, DE
• Stefan Hoepfner · Hamburg, DE

Key dates

• Filing date: Oct 16, 2020
• Grant date: Jan 30, 2024
• Expiry date: Oct 16, 2040

Classification

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

Abstract

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