| 摘要 |
PURPOSE:To obtain an electrophotographic sensitivity body having high sensitivity for both positively charged state and negatively charged state by using a specified hydrazone deriv. for a charge transfer material on an electroconductive base body. CONSTITUTION:The title electrophotographic sensitive body has a photosensitive layer contg. at least one kind of hydrazone deriv. expressed by formula I, wherein each R1-R7 is H, halogen, alkyl, alkoxy, allyl, aralkyl, or (substituted)aryl; each R8 and R9 is alkyl, allyl, aralkyl, or (substituted)aryl; n is 0 or 1. The hydrazone deriv. expressed by formula I is synthesized by a usual method, namely, by a condensation reaction of an aldehyde or a carbonyl compd. with a hydrazine compd. in an appropriate solvent such as alcohol in the presence of a small amt. of acid, if necessary. Thus, photosensitivity and characteristics during recurrent continuous use of an electrophotographic sensitive body are improved. |
