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Thermostable laked azo pigment together settling mono
Thermostable laked azo pigment together settling mono
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机译:热稳定色淀偶氮颜料一起沉淀
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摘要
Disclosed are red shade yellow compositions characterized by the formula: wherein X is a lower alkyl or a -COOR1 group; wherein R1 is a hydrogen or lower alkyl group; each Y is independently a lower alkyl, lower alkyloxy or halogen group; a is 0, 1, or 2; and M is a divalent metal. Also disclosed is a process for preparing red shade yellow pigment compositions prepared by initially a diazonium component comprised of one or more aromatic amines wherein at least one of said amines is a 1-sulfo-2-naphthylamine; and thereafter coupling the diazonium component with a coupling component comprised of a pyrazolone coupler to form a dye, and metallizing said dye with at least one divalent metal.
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