META-aminophenols useful as oxidation hair dye couplers

US4976742A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• David Rose · Hilden, DE
• Edgar Lieske · Düsseldorf, DE
• Norbert Maak · Neuss, DE

Key dates

• Filing date: May 6, 1988
• Grant date: Dec 11, 1990
• Expiry date: May 6, 2008

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q5/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Meto-aminophenols of the formula ##STR1## where R is hydrogen, C.sub.1-4 -alkyl, or a C.sub.2-4 -hydroxyalkyl; and their use as couplers in an oxidative hair dye in combination with developers.