Water-soluble disazo compounds, containing triazinyl pyridinium group processes for their preparation and their use for dyeing cellulose
US4806127A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Aug 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Water-soluble disazo compounds conforming to the general formula (1) ##STR1## and their 1:1 copper complex compounds which possess useful fiber-reactive dye properties and are capable of dyeing carboxamido- and/or hydroxy-containing materials, in particular cellulose fibers, in fast shades; wherein: PA1 D.sup.1 and D.sup.2 are each a phenylene, which may be substituted, or a naphthylene optionally substituted by sulfo; in the case of the copper complex compounds the ortho-position in D.sup.1 or D.sup.2 or in both being substituted by an oxy group complex-bonded to the copper, or D.sup.1 is a radical of the formula (2a), (2b) or (2c) ##STR2## or D.sup.2 is a radical which is the reverse of formulas (2a), (2b) or (2c), in which PA1 R.sup.1 and R.sup.2 are each independently of the other hydrogen, nitro, sulfo, methyl, ethyl, methoxy or ethoxy; PA1 K.sup.1 is a radical of the formula (3a), (3b) or (3c) ##STR3## and K.sup.2 is a radical which is the reverse of the formulas (3a); (3b) or (3c) PA1 in which M is hydrogen or an alkali metal and R* is hydrogen, methyl or ethyl, where in the case of the copper complex compounds the naphtholic hydroxy groups are complex bonded to the copper a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.