Bisreactive azo dyes containing a pyridine coupling component
US5391717A · kind A · utility
2Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1993 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jul 19, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/447
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reactive dyes of the formula ##STR1## in which D, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in claim 1, are particularly suitable for dyeing or printing cellulosic fiber materials or naturally occurring or synthetic polyamide fiber materials with a high tinctorial yield, and produce dyeings and prints having good fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.