Patent ID: 6407220
Filing Date: 2002-06-18
Classification: C09B

Abstract:
A reactive formazane dyestuff of the following formula (I): wherein:A is phenyl or naphthyl having 1 to 4 substituent groups, said substituent groups are selected from the group consisting of halogen, C1-4 alkyl, C1-4 alkoxyl, nitro, amino, hydroxyl, carboxyl, phosphonic acid and sulfo group, and wherein at least one substituent group is a sulfo group, said sulfo group is in the position ortho to the N-atom of hydrazone compound; B is a straight or branched C1-8 alkyl, or a phenyl, naphthyl or heteroaromatic group having 0 to 3 substituent groups, said substituent groups are selected from the group consisting of halogen, C1-4 alkyl, C1-4 alkoxyl, nitro, amino, hydroxyl, carboxyl, phosphonic acid and sulfo group, said heteroaromatic group is selected from the group consisting of: furan, thiophene, pyrrole, imidazole, pyrazole, pyridine, pyrimidine, quinoline, or benzimidazole; G is a phenyl or naphthyl having 0 to 3 substituent groups, said substituent groups are selected from the group consisting of halogen, C1-4 alkyl, C1-4 alkoxyl, nitro, amino, hydroxyl, carboxyl, phosphonic acid and sulfo group; Q is â€”NHCN, â€”OH, â€”SCH2COOH or 3-carboxypyridinium; D s a phenyl or naphthyl having 0 to 3 substituent groups, said substituent groups are selected from the group consisting of halogen, C1-4 alkyl, C1-4 alkoxyl, nitro, amino, hydroxyl, carboxyl, phosphonic acid and sulfo group; Me is Cu, Ni or Co metal ion; R is H, C1-8 alkyl, or C1-8 alkyl having at least one substituent group, said substituent group is selected from the group consisting of hydroxyl, carboxyl, sulfo, carbamoyl, and methoxy carbonyl; Z is â€”SO2â€”Y, â€”CONHâ€”(CH2)hâ€”SO2â€”Y, â€”(O)pâ€”(CH2)gâ€”CONHâ€”(CH2)hâ€”SO2â€”Y, or â€”NHâ€”COâ€”T; Y is â€”CH&boxH;CH2, or â€”CH2â€”CH2â€”U; U is â€”OSO3H, Cl, Br, â€”OPO3H2, â€”SSO3H or T is &agr;, &bgr;-halopropionyl or &agr;-haloacryloyl; g and h independently are an integer from 1 to 6; P is the number 0 or 1.