Cationic dyes

US4353833A · kind A · utility

Assignee

• BASF SE

Inventors

• Horst Bruder · Ludwigshafen, DE
• Hans-Juergen Degen · Lorsch, DE
• Franz Feichtmayr
• Klaus Grychtol · Bad Dürkheim, DE
• Udo Mayer · Bischofswerda, DE

Key dates

• Filing date: Nov 12, 1980
• Grant date: Oct 12, 1982
• Expiry date: Nov 12, 2000

Classification

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

Abstract

Compounds of the general formula I ##STR1## where the radicals A, A.sup.1 and B are identical or different and PA1 A is unsubstituted or substituted benzene or heteroaromatic, PA1 A.sup.1, if n=1, is unsubstituted or substituted heteroaromatic or is aryl which is unsubstituted or substituted by alkyl, aryl, cycloalkyl, chlorine, bromine, hydroxyl, alkoxy, aryloxy, nitro, hydroxycarbonyl, alkoxycarbonyl, or aminocarbonyl, and, if n>1, A.sup.1 may also be aryl substituted by unsubstituted or substituted amino, PA1 B is a bridge member of the formula ##STR2## B.sup.1 is a bridge member which may or may not be quaternized, R.sup.1 and R.sup.2 are hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aryl, alkoxy or amino, PA1 n is an integer equal to or greater than 1 and PA1 X.sup..theta. is an anion. The compounds according to the invention are preferably used for coloring paper pulp.