Preparations containing substantive nitrodiphenylamine derivative hair dyes

US4756716A · 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: Oct 24, 1986
• Grant date: Jul 12, 1988
• Expiry date: Oct 24, 2006

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q5/065
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Novel substituted nitrodiphenylamines and substantive hair dye preparations containing them or containing nitrodiphenylamines with different substituents. The dyes result in yellow to orange-red colored shades of high intensity and fastness and are more soluble in water than known nitroaniline dyes.