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US 5,028,709 AGranted
Anthraquinone vat dyes
AssigneeCiba-Geigy Corporation
InventorJean-Marie Adam
Life of this patent
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Abstract
The invention relates to vat dyes of the formula ##STR1## wherein [A] and [A'] and X are as defined in claim 1. The vat dyes of formula I are suitable for dyeing or printing a wide range of materials. Dyeings with good fastness properties are obtained in particular on cellulose material.
Claims15
A vat dye of the formula ##STR34## wherein [A] and [A'] are each independently of the other an antrhraquinone radical of the formula ##STR35## R.sup.1 and R.sup.2 are each independently of the other --NHR.sup.4 or --OR.sup.5,
- R.sup.3 is hydrogen, --CN, halogen, --CONR.sup.5 R.sup.6, --SO.sub.2 NR.sup.5 R.sup.6 or --COOR.sup.7,
- R.sup.4 is hydrogen, unsubstituted or substituted C.sub.1 -C.sub.6 alkyl, unsubstituted or substituted C.sub.5 -C.sub.8 cycloalkyl, unsubstituted or substituted aryl, or --COR.sup.8,
- R.sup.5 and R.sup.6 are each independently of the other hydrogen, unsubstituted or substituted C.sub.1 -C.sub.6 alkyl or unsubstituted or substituted phenyl,
- R.sup.7 is unsubstituted or substituted C.sub.1 -C.sub.6 alkyl, or C.sub.5 -C.sub.8 cycloalkyl,
- R.sup.8 is unsubstituted or substituted C.sub.1 -C.sub.6 alkyl or unsubstituted or substituted phenyl,
- X is an organic bridge member of the formula --CH.sub.2 --X'--CH.sub.2 -- and X' is a bivalent radical of an unsubstituted or substituted C.sub.6 -C.sub.18 aromatic compound or C.sub.4 -C.sub.14 heteroaromatic compound, and the radical (a) of the benzene series is unsubstituted or substituted.
3 more elements
Dependencies are inferred from the claim text.