Back to results
US 8,038,736 B2Granted
Mixtures of fiber-reactive azo dyes
AssigneeDystar, L.P.
InventorsRonald Pedemonte, Antonio Torrentera, Tiffany Chambers
Life of this patent
Estimating the term…
Abstract
The present invention provides dye mixtures containing a dye of the formula (I) and a dye of the formulae (II) where Z is —CH═CH2 or —CH2CH2Z1 and Z1 is hydroxyl or an alkali-eliminable group; and M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal. The invention also relates to a process for their preparation and their use.
Claims15
Dye mixture consisting of a dye of the formula (I)
- and a dye of the formulae (II)
- where
- Z is —CH═CH2 or —CH2CH2Z1 and
- Z1 is hydroxyl or an alkali-eliminable group;
- and
- M is hydrogen, an alkali metal or an alkaline earth metal.
3 more elements
Dependencies are inferred from the claim text.