Patent · US Expired

Oxidation hair-coloring preparation based upon N,N-bis-(.beta.-hydroxyethyl)-m-phenylenediamines

US4226595A · kind A · utility

6Cited by

8References

16Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

David Rose · Hilden, DE
Edgar Lieske · Düsseldorf, DE
Peter Busch

Key dates

Filing date	Dec 21, 1978
Grant date	Oct 7, 1980
Priority date	—
Expiry date	Dec 21, 1998

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q5/10
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

An aqueous hair dye preparation comprising an oxidation dyestuff combination of a developer component and a coupler component consisting of an N,N-bis-(.beta.-hydroxyethyl)-m-phenylenediamine as well as a process for dyeing hair by utilizing this oxidation dyestuff combination.

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