Basic azo dyestuffs of the 3-cyano-2,4,6-triamino pyridine series

US5468848A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karin Hassenruck · Mülheim an der Ruhr, DE
• Peter Wild · Odenthal, DE

Key dates

• Filing date: Jun 21, 1994
• Grant date: Nov 21, 1995
• Expiry date: Jun 21, 2014

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H21/28
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The new basic azo dyestuffs of the formula ##STR1## wherein the symbols have the meaning given in the description, are suitable for dyeing synthetic and naturally occurring substrates which can be dyed with basic dyestuffs.