| abstract |
Naphthalenetetracarboxylic acid diimide derivativesnrepresented by the following general formula,n nwherein R is a hydrogen atom, an alkyl group, annalkoxyl group or a halogen atom, R1 and R2 arendifferent from each other and may be a substituted ornunsubstituted alkyl group, alkoxyl group or an arylngroup, respectively, and R3 is a hydrogen atom, ansubstituted or unsubstituted alkyl group, an alkoxylngroup or an aryl group. n The derivatives exhibit excellent solubility in an organicnsolvent, excellent compatibility with a resin binder andnexcellent photosensitivity, and are very useful as annelectron transporting agent for the electrophotosensitivenmaterial. |