| abstract |
1536457 Monoazo pigments BASF AG 28 April 1976 [29 April 1975] 17235/76 Heading C4P Novel azo pigments having the formula (where n is 0 or 1; R is H or an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical; R<SP>1</SP> is C 1-4 alkyl or phenyl; X is H, Cl, Br or phenyl; Z is -NHCO-, -NHCONH-, -NHCOCONH-, or -NHSO 4 -; and K is the radical of a phenolic or enolic coupling component) are prepared by diazotization and coupling. The dyestuffs are used to colour coating agents, printing inks and plastics such as polyvinyl chloride, polyolefins, polystyrene and rubber. |