Oligomeric triarylmethane dyes

US5750742A · kind A · utility

Assignee

• BASF SE

Inventors

• Gunter Schroder · Minden, DE
• Udo Mayer · Bischofswerda, DE
• Ulf Baus · Dossenheim, DE
• Johannes P. Dix · Schifferstadt, DE

Key dates

• Filing date: Feb 19, 1997
• Grant date: May 12, 1998
• Expiry date: Feb 19, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B69/103
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Triarylmethanes of the formula ##STR1## where m is from 1 to 100, PA1 L.sup.1 and L.sup.2 are each C.sub.2 -C.sub.4 -alkylene, PA1 R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen, PA1 R.sup.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, PA1 R.sup.4, R.sup.5, PA1 R.sup.6 and R.sup.7 are each hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, or substituted or unsubstituted phenyl, PA1 Q is aryl, and PA1 An.sup..crclbar. is the equivalent of an anion, are useful for dyeing or printing polymeric material.