POLYVINYL ACETAL RESIN, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a resin making a charge generating material fulfill its full property, and being excellent in coatability and dispersibility of the charge generating material, though the latter two properties are considered to be incompatible with the former; and to provide an electrophotographic photosensitive member using the resin, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member. SOLUTION: The polyvinyl acetal resin having a specific repeating structural unit, the electrophotographic photosensitive member using the polyvinyl acetal resin, and the process cartridge and the electrophotographic apparatus each having the electrophotographic photosensitive member are provided. COPYRIGHT: (C)2007,JPO&INPIT