| 摘要 |
<p>Disclosed are pigments of formula I in which THE R1's, independently, each signify hydrogen, halogen, nitro, cyano, methyl, alkoxy, aminocarbonyl, alkylcarbonylamino, benzoylamino, phenylaminocarbonyl, alkylamino or phenylamino, THE R2's, independently, each signify hydrogen, halogen or methyl, THE R3's, independently, signify hydrogen or halogen, and R4 signifies a direct bond or a group -R5-NH-, in which the imino group is bound to nucleus A, and R5 signifies a 1,3- or 1,4-phenylene radical, unsubstituted or substituted by up to two substituents selected from halogen, methyl, alkoxy and nitro; or a radical IN WHICH X signifies a direct bond, -O-, -SO2-, -N=N- or -NHCO- and rings B and C are unsubstituted or substituted by up to two substituents selected from halogen, methyl, alkoxy and nitro, AND THEIR USE IN PIGMENTING SYNTHETIC PLASTICS AND RESINS AND PAPER AND AS COLORANTS IN SURFACE COATING MEDIA SUCH AS PAINTS, LACQUERS AND PRINTING INKS.</p> |
