Cationic dyestuffs

US4000130A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Alfred Brack · Odenthal, DE
• Roderich Raue · Dover, US

Key dates

• Filing date: Oct 15, 1974
• Grant date: Dec 28, 1976
• Expiry date: Oct 15, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/927
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Cationic dyestuffs of the formula ##STR1## WHEREIN R represents an alkyl, alkenyl, cycloalkyl, aralkyl, aryl or heteryl radical or an alkylene radical bonded to A or to a ring fusted with A, PA1 R.sub.1 represents hydrogen, an alkyl, aralkyl, aryl or heteryl or nitrile, PA1 R.sub.2 represents hydrogen, alkyl, aralkyl or aryl, PA1 R.sub.3 represents alkyl, PA1 R.sub.4 represents hydrogen, alkyl, aralkyl, aryl, heteryl or alkylene or arylene bonded to R.sub.5, PA1 R.sub.5 represents a five- or six-membered aromatic ring, PA1 A represents the remaining members of a heterocyclic 5-membered or 6-membered ring and PA1 An.sup.- represents an anion, A process for their preparation and their use for dyeing, printing and bulk dyeing of natural and synthetic materials.