Patent · US Active

Dyestuffs and hair dye compositions

US7776106B2 · kind B2 · utility

0Cited by

3References

6Claims

0Family size

Assignees

DyStar Textilfarben GmbH & Co. Deutschland KG · DE
KAO CORPORATION · JP

Inventors

Roxana Barbieru · Singapore, SG
Werner Russ · Flörsheim, DE
Dominic Pratt · Darmstadt, DE
Hartmut Moehring · Seeheim-Jugenheim, DE

Key dates

Filing date	Feb 2, 2007
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Feb 2, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B69/001
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention refers to dyestuffs of the general Formula (I) wherein R, X, Y and Z are defined as given in claim 1, dyestuff mixtures and hair dye compositions comprising them, as well as a process for coloring hair.

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