Water-soluble disazo dyestuffs containing a vinylsulfonyl or b-sulfatoethylsulfonyl-substituted nitrophenylamino group, suitable as dyestuffs
US4975540A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Jan 19, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/513
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disazo compounds conforming to the general formula (1) below and suitable for use as fiber-reactive dyes for the dyeing of carboxamido-containing and/or hydroxy-containing materials such as wool and, in particular, cellulose fiber materials, in navy hues having good fastness properties ##STR1## in which M is a hydrogen atom or an alkali metal or alkaline earth metal, PA1 D.sup.1 is a phenyl radical which can be substituted by substituents from the group consisting of chlorine, bromine, sulfo, alkyl and alkoxy and additionally by a vinylsulfonyl or .beta.-sulfatoethylsulfonyl group or by a group of the general formula (3) ##STR2## where X is a vinyl or .beta.-sulfatoethyl group; D.sup.2 is a radical of the general formula (4) ##STR3## in which M and X have one of the abovementioned meanings and the amino group --NH-- is bound to the benzene ring in the para-position with respect to the sulfo group --SO.sub.3 M or in the paara-position with respect to the free bond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.