Bireactive primary disazo dyes containing 1-amino-8-hydroxynaphthalene-3,6 Disulfonic acid as coupling component
US5047514A · kind A · utility
3Cited by
5References
3Claims
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Key dates
| Filing date | Nov 5, 1987 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Nov 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/926
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reactive dyes which contain at least one radical of the formula EQU --SO.sub.2 --CH.dbd.CH.sub.2 (1a) or EQU --SO.sub.2 --CH.sub.2 CH.sub.2 --X (1b) and at least one radical of the formula ##STR1## in which X is an inorganic or organic radical detachable under alkaline conditions, R is hydrogen or substituted or unsubstituted C.sub.1-4 -alkyl, Y is oxygen or sulfur and R.sub.1 is a substituted or unsubstituted aliphatic radical, give dyeings or prints having good fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.