Disazo dyes containing a hydroxybenzene or alkoxybenzene middle component
US5420258A · kind A · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Aug 23, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/59
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azo dyes of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, X, Y and n are as defined in claim 1, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group containing fibre materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.