| 摘要 |
PURPOSE:To obtain an electrophotographic receptor high in sensitivity, and superior in mechanical strength, such as abrasion resistance, adhesion, and hardness, by dispersing a Lewis base uniformly into a thermoplastic phenoxy resin to form a charge transfer medium. CONSTITUTION:An electrophotographic receptor consists of a conductive substrate and a photoconductive layer formed on the substrate, and the photoconductive layer consists of a thermoplastic phenoxy resin composed of repeating units having a general formula as shown on the right (R1, R2 are H or lower alkyl), having substantially no epoxy group in the terminal of the molecular chain, and 20,000-50,000 mol.wt., a Lewis base homogeneously mixed with said resin, both of them forming a charge transferring medium, and a charge generating pigment dispersed into this medium. This photoconductive layer is superior in adhesion to the conductive substrate, enhanced in mechanical strength, such as impact strength, because the property of the resin film itself, and the obtained electrophotographic receptor can be maintained in a level excellent in sensitivity and saturation charging potential. |
