Abstract:
Betainic complex azo dyestuff-cobalt compound consisting essentially of, per molecule:A cobalt atom;One molecule of a colorless tridentate organic ligand which is coordinatively bound to said cobalt atom by way of three nitrogen atoms which is free from ionogenic groups which do not partake in complex formation, each of said nitrogen atoms participating in the formation of a 5- to 6- membered ring of which said cobalt atom is a member; andOne radical of a mono- or dis- azo dyestuff capable of forming a bicyclic metal complex with cobalt and containing one sulphonic acid group, whereby a complex dyestuff-cobalt compound is formed which has the character of an inert salt (betaine), are disclosed. These compounds are useful for the dyeing and/or pigmenting of polymeric and copolymeric organic material, e.g., lacquers, synthetic plastics or spinning masses, as well as for the dyeing of polyamide fibers from weekly acid bath.
Abstract:
Disclosed are homogeneous complexes of the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl, phenyl or substituted phenyl, ##STR2## WHEREIN ONE Q is hydrogen and the other is sulfo, and N IS 0 OR 1 (THE SULFO GROUP BEING IN THE 5- OR 6-POSITION WHEN N IS 1),R.sub.4 is hydrogen, alkyl, alkoxy, chloro, bromo or nitro,R.sub.5 is hydrogen, alkyl, alkoxy, chloro, bromo, nitro or sulfo,With the proviso that when one of R.sub.4 and R.sub.5 is hydrogen, the other is other than hydrogen and is in the 4- or 5-position and when both are other than hydrogen, one is in the 4-position and the other is in the 5- or 6-position,One of R.sub.6 and R.sub.7 is hydrogen, chloro or nitro and the other is hydrogen, sulfamoyl or substituted sulfamoyl, and ##STR3## wherein one of R.sub.10 and R.sub.11 is hydrogen and the other is hydrogen, chloro, alkyl, alkoxy or trifluoromethyl,R.sub.12 is hydrogen or methyl,R.sub.13 is methyl, chloro or bromo, with the proviso that R.sub.12 is hydrogen when R.sub.13 is chloro or bromo,Y.sub.1 is hydrogen or acylamino,Y.sub.2 is hydrogen, alkyl, alkoxy, chloro or bromo,Y.sub.3 is hydrogen or 5- or 6-sulfamoyl, alkylsulfamoyl or hydroxyalkylsulfamoyl, andM.sup..sym. is hydrogen or a non-chromophoric cation,wherein the asterisks indicate the carbon atom attached to the azo group,with the proviso that the complex contains a single sulfamoyl or substituted sulfamoyl group and a single sulfo group which is in salt form,and mixtures of such complexes. The complexes and mixtures are useful for dyeing and printing nitrogen-containing organic substrates, for example, polyamides such as wool, silk and nylon, polyurethanes and leather.
Abstract:
COMPLEX AZO DYESTUFF-COBALT COMPOUNDS CONSISTING ESSENTIALLY OF, PER MOLECULE: A COBALT ATOM: ONE MOLECULE OF A COLORLESS TRIDENTATE ORGANIC LIGAND WHICH IS COORDINATIVELY BOUND TO SAID COBALT ATOM BY WAY OF THREE NITROGEN ATOMS AND WHICH IS FREE FROM IONOGENIC GROUPS WHICH DO NOT PARTAKE IN COMPLEX FORMATION, EACH OF SAID NITROGEN ATOMS PARTICIPATING IN THE FORMATION OF A FIVE- TO SIX-MEMBERED RING OF WHICH SAID COBALT ATOM IS A MEMBER, AND ONE RADICAL OF AN AZO DYESTUFF, BICYCLICALLY BOUND TO THE COBALT ATOM AND BEING FREE FROM GROUPS WHICH ARE CAPABLE OF DISSOCIATING ACID IN WATER BUT DO NOT PARTAKE IN COMPLEX FORMATION, WHEREBY THE THUS CONSTITUTED COMPLEX IS RENDERED CATIONIC, AND ONE EQUIVALENT OF A COLORLESS ANION, ARE DISCLOSED, THEY ARE USEFUL FOR COLOING ORGANIC POLYMERIC MATERIALS AND ESPECIALLY FORDYEING ACRYLIC FIBERS FROM AN AQUEOUS BATH.