Reactive disazo dyes which contain two aminofluoro-1,3,5-triazinyl radicals
US5073631A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1988 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Sep 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/09
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reactive dyes of the formula EQU X.sub.1 --NH--CH.sub.2).sub.0-1 A--N.dbd.N--M--N.dbd.N--B--CH.sub.2).sub.0-1 NH--X.sub.2 (1) in which M is twice-coupled 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid, 1-amino-8-hydroxynaphthalene-4,6-disulfonic acid, 1-amino-8-hydroxynaphthalene-4-sulfonic acid or 2-amino-5-hydroxynaphthalene-7-sulfonic acid, A and B, independently of each other, are each unsubstituted or substituted phenylene or naphthylene, and X.sub.1 and X.sub.2, independently of each other, are each unsubstituted or substituted amino-fluoro-1,3,5-triazinyl, excluding the reactive dyes of German Offenlegungsschrift 2,738,823, are suitable in particular for dyeing and printing cellulose-containing fibre materials and produce, combined with a high dyeing yield, dyeings and prints having good fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.