| 摘要 |
Org. pigments for dyeing plastics were manufd. by adding homopolymers or copolymers of monomer contg.CH2=CH- or CH2=CR to the reaction mixt. used for prepg. the pigment. The mixt. for the pigment was obtained by coupling diazotized 2-nitroaniline-4-sulfonic acid with acetoacet-o-chloroanilide in the presence of theor. amt. CaCO3.
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