Patent · US Active

Mixture of sulfide dyes

US7828858B2 · kind B2 · utility

5Cited by

2References

15Claims

0Family size

Assignee

Ciba Corp. · US

Inventors

Christian Cremer · Aachen, DE
Victor Paul Eliu · Lörrach, DE
Beate Fröhling · Weil am Rhein, DE
Olof Wallquist · Basel, CH

Key dates

Filing date	Sep 13, 2006
Grant date	Nov 9, 2010
Priority date	—
Expiry date	May 29, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/0034
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Disclosed are mixtures of sulfide dyes and dyeing compositions comprising mixtures of sulfide dyes. The dye mixtures are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.

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