Reactive azo dyes containing phenylamino-chlorotriazinylamino and .alpha.,.beta.-dibromoproproylamino or .alpha.-bromoacryloylamino fiber reactive groups
US5554733A · kind A · utility
5Cited by
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9Claims
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Key dates
| Filing date | Mar 27, 1995 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Mar 27, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/4413
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reactive dyes of formula ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by hydroxyl, R.sub.2 and R.sub.3 are each independently of the other hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, halogen or sulfo, and Y is .alpha.,.beta.-dihalopropionyl or .alpha.-haloacryloyl, are particularly suitable for dyeing or printing cellulosic fibre materials or natural or synthetic polyamide fibre materials, in high tinctorial yield, and give dyeings and prints with good fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.