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US 2012/0284934 A1Published application
Fiber-reactive azo dyes, preparation thereof and use thereof
AssigneeDyStar Clours Deutschland GmbH
InventorStefan Ehrenberg
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Abstract
The present invention provides azo dyes of formula (1) where Hal, M and Y are each as defined in claim 1, processes for their preparation and their use.
Claims12
1-10. (canceled)
An azo dye of formula (1)
- where
- Y represents —CH═CH2 or —CH2CH2Z, where Z is an alkali-detachable group;
- M represents hydrogen, ammonium, an alkali metal or the equivalent of an alkaline earth metal;
- and
- Hal is Cl or F.
2 more elements
Dependencies are inferred from the claim text.