Tertiary alkyl substituted disazo pigments

Abstract

Disazo pigments of the formula ##STR1## in which A denotes a radical of the formulae ##STR2## wherein X.sub.1, Y.sub.1 and Y.sub.2 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, Y.sub.3 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.

Dependencies are inferred from the claim text.