Storage-stable developer for oxidative dye

US10603260B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Carsten Brake · Neheim, DE
• Burkhard Mueller · Goldkronach, DE
• Torsten Lechner · Langenfeld, DE
• Lucile Bonnin · Dressendorf, DE
• Laura Knechtel · Schallstadt, DE

Key dates

• Filing date: Oct 30, 2018
• Grant date: Mar 31, 2020
• Expiry date: Oct 30, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/882
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Oxidative compositions for oxidative treatment of hair, kits including such compositions, and methods for oxidative color change are provided. An exemplary oxidative composition includes comprises water, hydrogen peroxide, at least linear saturated 1-alkanol with from about 12 to about 30 carbon atoms, at least one anionic surfactant selected from alkyl sulfates and alkyl ether sulfates, dipicolinic acid, 1-hydroxyethane-1,1-diphosphonic acid, disodium pyrophosphate, benzoic acid or a salt thereof, and potassium hydroxide. The exemplary oxidative composition has a pH in the range of from about 2 to about 3.8, each measured at 20° C. The exemplary oxidative composition includes no phosphoric acid, no salicylic acid, no diethylenetriamine pentaacetic acid, no ethylenediamine tetraacetic acid, no nitrilotriacetic acid nor salts thereof, and no phenacetin, no stannates, no cationic surfactants and no oil.