Patent · US Expired

Oxidation hair dyes comprising bis-(2,4-diaminophenoxy)-alkanols as coupling components

US4371370A · kind A · utility

2Cited by

3References

7Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

David Rose · Hilden, DE
Hinrich Moller · Monheim, DE
Norbert Maak · Neuss, DE

Key dates

Filing date	Mar 4, 1981
Grant date	Feb 1, 1983
Priority date	—
Expiry date	Mar 4, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C205/37
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

This invention is directed to bis-(2,4-diaminophenoxy)-alkanols and salts thereof and to compositions of the developer-coupler type for the dyeing of hair, consisting essentially of bis-(2,4-diaminophenoxy)-alkanols or salts thereof as coupling components and, as developer components, the conventional components used in oxidation dyes.

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