Reactive azo dyes with a coupler of the aminonaphthalene series

US5789557A · kind A · utility

Assignee

• BASF SE

Inventors

• Jurgen Dornhagen · Schifferstadt, DE
• Heike Kilburg · Speyer, DE
• Manfred Patsch · Monsheim, DE
• Hermann Loffler · Speyer, DE
• Ortwin Schaffer · Ludwigshafen, DE

Key dates

• Filing date: Mar 27, 1997
• Grant date: Aug 4, 1998
• Expiry date: Mar 27, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/507
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Reactive dyes of the formula ##STR1## where n is 1 or 2, PA1 R.sup.1 is hydrogen or hydroxysulfonyl, PA1 R.sup.2 is hydrogen or hydroxyl, PA1 R.sup.3 is substituted C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or substituted phenyl, PA1 R.sup.4 is hydrogen or R.sup.3 and R.sup.4, together with the nitrogen atom linking them, form a heterocyclic radical and PA1 D is a radical of a diazo or tetrazo component, each having at least one mechanism, their use for dyeing or printing hydroxyl-containing or nitrogen-containing organic substrates, and novel aminonaphthalenes.