Process of coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, a further coloring compound and a film-forming polymer II

US11504321B2 · 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: Nov 22, 2022
• Expiry date: Mar 13, 2040

Classification

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

Abstract

A process and a kit-of-parts for dyeing keratinous material, in particular human hair, are provided. An exemplary process for dyeing keratinous material includes applying an agent (a) to the keratinous material. The agent (a) includes (a1) at least one organic silicon compound selected from the group consisting of silanes having one, two or three silicon atoms, and (a2) at least one first colorant compound including at least one lenticular substrate platelet based pigment. The process further includes applying an agent (b) to the keratinous material. The agent (b) includes (b1) at least one film-forming polymer and (b2) at least one second colorant compound selected from the group consisting of pigments and/or direct dyes.