| 摘要 |
PURPOSE:To enhance ozone resistance of a photosensitive body by incorporating a compound having a hindered amine structural unit and a compound having a hindered phenol structural unit. CONSTITUTION:The photosensitive body contains the compound having the hindered amine structural unit (A) and the compound having the hindered phenol structural unit (B). The unit (A) means that having a bulky atomic group near the amino nitrogen atom, such as formula I, in which each of R1-R4 is H, alkyl, or the like, and Z is an atomic group necessary to form an N-containing aliphatic ring, and the unit (B) expresses that having a bulky atomic group at the ortho position of the phenolic hydroxyl group or the alkoxyl group, such as formula II, in which R5 is a branched alkyl; each of R6-R8 is H, hydroxy, or the like; and R9 is H, alkyl, or the like. When these compounds are used for the photosensitive layer of multilayer structure, they can be added to the layer on the surface side. |
