Patent · US Expired

Hair dye composition

US4865620A · kind A · utility

0Cited by

2References

11Claims

0Family size

Assignee

Ruetgerswerke Aktiengesellschaft · DE

Inventors

Winfried Orth
Wolfgang Weiss · Ottobrunn, DE
Hans W. Kleffner · Battenberg, DE

Key dates

Filing date	Sep 1, 1988
Grant date	Sep 12, 1989
Priority date	—
Expiry date	Sep 1, 2008

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K8/4926
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Hair dye compositions based on oxidation hair dyes which contain developer components, coupling components and oxidation components, characterized in that they contain one or more aminopyrrole derivatives of the formula: ##STR1##

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