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US 5,290,922 AGranted
Disazo compounds containing a cyanoamidotriazinyl radical as a bridging member (middle component) and fiber-reactive groups of the vinylsulfone series, suitable as dyestuffs
AssigneeHoechst Aktiengesellschaft
InventorsHartmut Springer, Rolf Gleibner
Life of this patent
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Abstract
Disazo compounds which possess fiber-reactive groups and have useful dye properties and are capable of dyeing hydroxyl- and/or carboxamido-containing materials, in particular fiber materials, such as cellulose fibers and natural and synthetic polyamide, such as wool, in strong, fast shades. They conform to the formula ##STR1## wherein the substituents are as defined in the specification.
Claims12
A disazo compound conforming to the formula ( 1) ##STR19## where Me is hydrogen or an alkali metal;
- K.sup.1 is a radical of the formula (2a) ##STR20## where Me has one of the abovementioned meanings and
- n is zero or 1 (if zero, this group being hydrogen);
- K.sup.2 is a radical of the formula (2b) ##STR21## where Me and n are each as defined above;
- D.sup.1 and D.sup.2 are each independently of the other a group of the formula (3a), (3b) or (3c) ##STR22## where Me has one of the abovementioned meanings,
- R.sup.1 is hydrogen, alkyl of from 1 to 4 carbon atoms, which maybe sulfo-, carboxyl- or sulfato-substituted, alkoxy of from 1 to 4 carbon atoms, which may by sulfo-, carboxyl- or sulfato-substituted, chlorine, bromine, hydroxyl, cyano, carboxyl or sulfo,
- R.sup.2 is hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms,
- Y is vinyl, or ethyl which contains in the .beta.-position a substituent which is eliminable by alkali to form a vinyl group, and
- m is zero, 1 or 2 (if zero, this group being hydrogen).
5 more elements
Dependencies are inferred from the claim text.