Patent · US Active

Oxidative dye in red shades with improved fastness and improved homogeneity

US11497699B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Jing Hodes · Hagen, DE
Sandra HILBIG · Bochum, DE
Daniela Kessler-Becker · Leverkusen, DE
Melanie Moch · Dormagen, DE

Key dates

Filing date	Nov 12, 2019
Grant date	Nov 15, 2022
Priority date	—
Expiry date	Nov 12, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/88
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains in a cosmetic carrier (A) at least one oxidation dye precursor with 4,5-diaminopyrazole as the basic structural element according to the structural formula (I) and furthermore (B) glucoheptonic acid and/or at least one of its physiologically tolerated salts and/or lactones. The composition as contemplated herein further comprises (C) at least one oxidizing agent other than atmospheric oxygen.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.