Mixtures of fibre-reactive ring-opened phthalimidylazo dyes
US5665125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1995 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Dec 27, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Mixtures comprising a compound of the formula ##STR1## and a compound of the formula ##STR2## in which K is the radical of a coupling component, s is the same in the compounds of formulae (16a) and (16b) and is the number 1 or 2, R and R' are each hydrogen, sulfo, hydroxyl, C.sub.1 -C.sub.4 alkoxy, halogen or cyano, A is C.sub.1 -C.sub.6 alkylene which is optionally substituted by halogen, hydroxyl, sulfato, carboxyl, cyano, C.sub.2 -C.sub.4 alkanoyloxy, C.sub.1 -C.sub.4 alkoxycarbonyl or carbamoyl or interrupted by a group --O-- or --NR"--, or is C.sub.1 -C.sub.6 alkylenephenylene which is unsubstituted or substituted in the phenyl part by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen or sulfo, and R" is hydrogen or C.sub.1 -C.sub.4 alkyl, and the ratio of the compounds of formulae (16a) and (16b) is about 1:1, are suitable as fibre-reactive dyes for dyeing or printing widely varying fibre materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.