ApplicationNo. 486487 filed on 02/28/1990
US Classes:534/740, Hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to an azo group534/581, Formation of azo group by coupling diazonium compound with coupling component in presence of an additional organic compound534/752, Polycyclo ring system having a hetero atom shared by at least two rings or at least two hetero atoms which are not members of the same ring534/887, Purification or recovery548/212, Nitrogen attached directly to the thiazole ring by nonionic bonding549/57Nitrogen or a -C(=X)- group, wherein X is chalcogen, attached directly to the bicyclo ring system by nonionic bonding
ExaminersPrimary: Lee, Mary C.
Assistant: Powers, Fiona T.
Attorney, Agent or Firm
Foreign Patent References
International ClassesC09B 029/039
Foreign Application Priority Data1989-03-01 CH
AbstractDyes of the formula ##STR1## where R and R1 are independently of the other hydrogen, halogen, nitro, alkyl or alkoxy and KK is the radical of a coupling component, which are particularly suitable for dyeing polyester fibers if no water-solubilizing group is present, and which are particularly suitable for dyeing and printing textile materials made of polyamide fibers when at least one sulfo group is present in the dye.