Fibre-reactive formazane dyes containing .beta.-sulfatoethylsulfonyl bonded via phenylaminotriazinylamino bridge members
US5076811A · kind A · utility
4Cited by
6References
1Claims
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Key dates
| Filing date | Jul 19, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Jul 19, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S534/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The fibre-reactive formazan dyes of the formula ##STR1## in which R is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, cyano or nitro, X is fluorine or chlorine, and n is the number 0, 1 or 2 produce dyeings which have good fastness properties on nitrogen-containing or hydroxyl-containing fibre materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.