Reactive dyes containing the 2-(cyano, carbonamido, sulfo-, hydroxy- or sulfato-C.sub.2 -C.sub.5 -alkyleneamino)-6-sulfo- or 3,6-disulfo-8-hydroxynaphthyl-(1) coupling component
US5023326A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1989 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Nov 9, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/51
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reactive dyes of the formula ##STR1## in which Y is hydrogen or sulfo, U is --CN, --CONH.sub.2, --SO.sub.3 H, --OH or --OSO.sub.3 H, D is a phenyl or naphthyl radical, which can be substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, carboxyl and sulfo, and which contains at least one reactive radical bound direclty or via a bridge member to a ring carbon atom, or to which a further radical is bound which contains a reactive radical, and u is the number 2, 3, 4 or 5, are suitable in particular for the dyeing or printing of cellulose-containing fiber materials by the exhaust method or by the continuous method and product in combination with a high colorisitc yield dyeings and prints which have good fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.