| 摘要 |
PURPOSE:To obtain the titled body which has high sensitivity and does not change the characteristics, even in the case of repeatedly using by incorporating specified hydrazone electric charge transfer substance and compd. in an electric charge transfer layer respectively. CONSTITUTION:The charge transfer layer is composed from a binder resin, the hydrazone charge transfer substance shown by formula I and the compd. shown by formula II. In formulas I and II, R<1> and R<2> are alkyl or aryl group which may be substd., A is an aromatic hydrocarbon or an aromatic heterocyclic group which may be substd., (n) is 1 or 2, R<3>-R<6> are each hydrogen atom, hydroxy, alkyl or alkoxy group, R<7> and R<8> are each hydrogen atom or alkyl group, Z is an atomic group necessary for forming a 2H-chromene nucleus, a chroman nucleus or a dihydrobenzofuran nucleus which may be substd. Thus, the titled body which has the high sensitivity, the less optical fatigue etc., and the very excellent durability is obtd. |
