Basic dyestuffs

US4710569A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gunter Franke · Leichlingen, DE
• Dieter Ockelmann · Cologne, DE
• Roderich Raue · Dover, US
• Peter Wild · Odenthal, DE

Key dates

• Filing date: Sep 10, 1985
• Grant date: Dec 1, 1987
• Expiry date: Sep 10, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B69/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyestuffs of the formula ##STR1## wherein F stands for an organic chromophore and PA1 Z stands for radicals of the formulae ##STR2## wherein R.sub.1 -R.sub.2 denote hydrogen, alkyl, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic structure or PA1 R.sub.2 and R.sub.3 represent an optionally substituted amino group or together form a ring or PA1 R.sub.1 with R.sub.2 and/or R.sub.3 with R.sub.4 form a ring, PA1 A.sup.(-) denotes an anion, PA1 Y denotes an anionic group, PA1 m denotes 0-2 and PA1 n denotes 1-6, and wherein the chromophore and said radicals can carry further substituents, provided that the total number of anionic substituents is smaller than the total number of quaternary and quaternizable amino groups, are used for dyeing cellulose fibres, in particular paper.