Disazo dyes containing an alkanoylamino group and a substituted alkoxy group

US5527889A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Jurgen Schaetzer · Rheinfelden (Baden), DE
• James C. Posey · Basel, CH

Key dates

• Filing date: Apr 17, 1995
• Grant date: Jun 18, 1996
• Expiry date: Apr 17, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B31/047
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Azo dyes of formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, unsubstituted C.sub.2 -C.sub.4 alkanoylamino or C.sub.2 -C.sub.4 alkanoylamino which is substituted by hydroxy, sulfo or sulfato, or are halogen or sulfo, PA1 R.sub.3, R.sub.4 and R.sub.5 are each independently of one another hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen or sulfo, PA1 R.sub.6 is hydrogen, C.sub.1 -C.sub.4 alkyl, halogen, sulfo, unsubstituted C.sub.2 -C.sub.4 alkanoylamino or C.sub.2 -C.sub.4 alkanoylamino which is substituted by hydroxy, sulfo or sulfato, or is a radical of formula --O--Y, wherein Y is hydrogen, C.sub.1 -C.sub.8 alkyl or C.sub.1 -C.sub.8 alkyl which is substituted by hydroxy, C.sub.1 -C.sub.4 alkoxy, sulfo or sulfato, PA1 R.sub.7 is hydrogen, C.sub.1 -C.sub.8 alkyl or hydroxy-substituted C.sub.1 -C.sub.8 alkyl, or C.sub.2 -C.sub.8 alkyl which is interrupted in the chain by the group --O-- or ##STR2## and X is C.sub.1 -C.sub.8 alkyl or C.sub.1 -C.sub.8 alkoxy, each unsubstituted or substituted by hydroxy, PA1 C.sub.1 -C.sub.4 alkoxy, halogen, sulfo or sulfato, or is unsubstituted…