| 摘要 |
Disazo pigments of the formula <IMAGE> +TR <IMAGE> in which A denotes a radical of the formulae <IMAGE> wherein X1, Y1 and Y2 each denote hydrogen or chlorine, lower alkyl or lower alkoxy, X stands for branched alkyl having 3 to 9 carbon atoms, Y denotes hydrogen, halogen or lower alkyl, Y3 denotes hydrogen or lower alkyl, Z is hydrogen, halogen, lower alkyl, lower alkoxy or lower carbalkoxy and n or 2 are useful for coloring plastics and lacquers in yellow shades having excellent fastness properties, especially fastness to weathering.
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