| 摘要 |
Asymmetric N,N'-bis(4-(2-cyano-2-substituted vinyl)-phenyl)-arylene and (hetero)alkylene diamines (IA), in which the second substituent is another electronegative, preferably cyano or alkoxycarbonyl, group, are new. Asymmetric N,N'-bis(4-(2-cyano-2-substituted vinyl)-phenyl)-arylene and (hetero)alkylene diamines (IA) of formula (I), in which the second substituent is another electronegative, preferably cyano or alkoxycarbonyl, group, are new. Y = a divalent (substituted) arylene or alkylene group, in which the alkylene group may have heteroatoms, e.g. oxygen (O) or sulfur (S) in the chain; R<1>, R1' = an electronegative group, preferably cyano (CN) or alkoxycarbonyl, especially 1-4 carbon (C) alkoxycarbonyl; R<2>, R2', R<3>, R3' = hydrogen (H), alkyl, especially 1-4 C alkyl, trifluoromethyl (CF3) or halogen, preferably fluorine (F) or chlorine (Cl); R<4>, R4' = (substituted) alkyl, preferably 1-6 C alkyl, or 7-12 C aralkyl, preferably benzyl; R<1>/R1', R<2>/R2', R<3>/R3' and/or R<4>/R4' = different substituents. Independent claims are also included for (a) a process for bulk coloration of plastics with (IA) or corresponding symmetric dyes (IB); (b) solid dye formulations containing NOTLESS 95 wt.% dye (IA) or (IB); (c) plastics colored with dye(s) (IA); (d) styrene/acrylonitrile copolymers and acrylonitrile/butadiene/styrene copolymers colored with (s) (IA) and/or (IB); and (e) the preparation of dyes (IA). |
