Mixtures of monoazo dyestuffs

US4582509A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Ulrich Buhler · Alzenau, DE
• Manfred Hahnke · Kelkheim, DE
• Albert Bode · Schwalbach, DE
• Kurt Roth · Waterloo, CA
• Margarete Boos · Hattersheim, DE

Key dates

• Filing date: Feb 4, 1985
• Grant date: Apr 15, 1986
• Expiry date: Feb 4, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S534/01
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The mixture of monoazo dyestuffs containing at least different individual dyestuffs of the formula ##STR1## wherein R.sup.1 is alkyl of 1 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, PA0 R.sup.2 is alkyl of 1 to 3 carbon atoms and PA0 R.sup.3 and R.sup.4, independently of each other, are alkyl of 1 to 4 carbon atoms, is highly suitable for dyeing and printing hydrophobic materials.