Patent ID: 6624291
Filing Date: 2003-09-23
Classification: C09B

Abstract:
A monoazo dyestuff of the formula (1): whereinY is vinyl or is ethyl which is substituted in the &bgr;-position by a substituent which can be eliminated by the action of an alkali, forming the vinyl group; M is hydrogen or an alkali metal; X is fluorine, chlorine, amino, C1 to C4 alkoxy, phenoxy, unsubstituted anilino, or anilino which is substituted by a halogen or sulfo group, a mono-C1-C4 alkyl amino, or di-C1 to C4 alkyl amino, wherein said C1 to C4 alkyl is optionally substituted by sulfo, sulfato or hydroxy groups; R1 is hydrogen methyl, methoxy or sulfo; R2 has one of the meanings of R1; Q is a group of the formula (b): â€ƒwherein A is hydrogen, unsubstituted C1-C6 alkyl, or C1-C6 alkyl which is substituted by a hydroxy, sulfo or sulfato group or is phenyl which is optionally substituted by one or more halogens, acetamido group, or sulfo; B has one of the meanings of A; D has one of the meanings of A; or D-B-N+ in formula (b) forms a cyclic ring system and A is as defined above or D-A-B-N+ forms a mono- or bicyclic ring system; n is 0 if Q is a group of the formula (a) and n is 1 if Q is a group of formula (b); Wâ€” is a halogenide or the equivalent of a divalent anionic group.