Oxidative hair dyeing agent having reduced hair damage and improved dyeing properties

US10780035B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Gabriele Weser · Neuss, DE
• Ulrike Schumacher · Dressendorf, DE
• Claudia Kolonko · Remscheid, DE
• Constanze Neuba · Grevenbroich, DE
• Irmgard Bender · Goldkronach, DE

Key dates

• Filing date: Dec 18, 2018
• Grant date: Sep 22, 2020
• Expiry date: Jan 15, 2039

Classification

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

Abstract

The subject of present disclosure is an oxidation dyeing agent for the oxidative color change of keratinous fibers, in particular human hair, comprising at least one alkalizing agent, at least one oxidation dye precursor of a developer type and at least one oxidation dye precursor of a coupler type, at least one ether compound of xylitol and, based on the weight of oxidation dyeing agent, zero to less than 0.1% by weight of peroxide compounds, wherein the oxidation dyeing agent preferably has a pH value in the range of 8 to 11, in particular in the range of 8.5 to 10.7, particularly preferably in the range of 9 to 10.3, most preferably 9.5 to 9.7, each measured at a temperature of 22° C.