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US 7,125,966 B2Granted
Azo compounds
AssigneeClariant Finance (BVI) Limited
InventorRobert Egli
Life of this patent
Estimating the term…
Abstract
The present invention relates to novel dyestuffs of formula (I) wherein the substituents have the meanings defined in the claims, the production of such dyestuffs, the use of these dyestuffs and material dyed or printed by such dyestuffs
Claims28
A dyestuff or a mixture of dyestuffs of formula (I)
- wherein
- X is H;
- halogen, —CN;
- —SO2CH3;
- —OH;
- —OCH3 or —NO2,
- Y is H;
- halogen, or —CN, and
- K is a coupling component radical of the 6-hydroxypyridone-2, aniline, a-naphthylamine, 5-aminopyrazole, 5-hydroxypyrazole, indole, tetrahydrochinoline, 2-aminothiazole, 2-aminothiophene, phenole which is not 3,5-dimethyl substituted and the substituents in the 3 and 5 position are not members of a second ring, 2-naphthol, benzomorpholine or 2,6-diaminopyridine series.
6 more elements
Dependencies are inferred from the claim text.