Electrophotographic photoreceptor

Details Electrophotographic photoreceptor Electrophotographic photoreceptor

2011-07-26

2011-07-26

RoDee, Christopher (Department: 1721)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

C430S056000, C430S058700, C430S059300, C430S059400, C430S096000, C399S159000

Reexamination Certificate

active

07985522

ABSTRACT:
Disclosed is an electrophotographic photoreceptor which is excellent in wear resistance and electrical characteristics. Specifically disclosed is an electrophotographic photoreceptor containing a polyester resin in a photosensitive layer provided on an electroconductive substrate. The polyester resin is composed of a copolymer represented by the general formula 1 below, which has a viscosity average molecular weight (Mv) of 10,000-300,000 and contains a diphenyl ether 4,4′-dicarboxylic acid component and a bivalent phenol component.In the general formula 1, A represents a diphenyl ether 4,4′-dicarboxylic acid residue represented by the formula A below, and B represents a bivalent phenol residue represented by the formula B below.In the formula A, each of Ra1and Ra2independently represents a hydrogen atom or a monovalent substituent which may have a substituent, and each of n and m is independently an integer from 0 to 4. In the formula B, each of R1and R2independently represents one selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, a halogen group, and an alkoxy group.

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