Disazo dyestuffs having a triazine moiety and a fiberreactive group of vinylsulfone series

US5243034A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Horst Tappe · Dietzenbach, DE
• Dieter Oehme · Flörsheim, DE
• Holger M. Buch · Hofheim, DE
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: Nov 18, 1991
• Grant date: Sep 7, 1993
• Expiry date: Nov 18, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/513
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disazo dyestuffs containing sulfo groups and having fiber-reactive properties, which are capable of dyeing materials containing hydroxyl groups and/or carboxamide groups, in particular fiber materials, such as synthetic polyamide fibers, wool and in particular cellulose fiber materials, in deep fast shades. They contain a group corresponding to the formula ##STR1## in which R.sup..alpha. is hydrogen or alkyl having 1 to 4 carbon atoms, which can be substituted by carboxyl, sulfo, cyano, hydroxyl or chlorine; PA0 B is fluorine, chlorine, bromine, lower alkylsulfonyl, phenylsulfonyl, methoxy or sulfo; PA0 Q is a group of the formula ##STR2## in which Y is vinyl, .beta.-sulfatoethyl, .beta.-halogenoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl or .beta.-acetoxyethyl, PA0 R is hydrogen or lower alkyl, PA0 k is the number zero to 4 and PA0 X, together with the N atom, forms the bivalent radical of a heterocyclic ring which optionally contains additional hetero atoms.