АНТРАХИНОНОВЫЕ АЗОКРАСИТЕЛИ

摘要

The present invention relates to an azo dye of formula I, II or III: (formula I, II or III); wherein R₁ and R₂ are each independently of the other one or more divalent groups selected from alkylene, arylene, aralkylene and cycloalkylene, which may be interrupted by -O-, -S-, -NH-, -NR₈-, -COO-, -CONH- or -CONR₉-, wherein R₈ and R₉ are alkyl or aryl, X is -O- or -NH-, R₃ is -CN or -CONH₂, R₄ is methyl or trifluoromethyl and R₅, R₆, R₇ and R₈ are each independently of the others hydrogen, halogen or -CN, to a process for the preparation thereof and to the use thereof in a method of producing mass-colored plastics or polymeric color particles.