Patent ID: 8609310

Claim:
An electrophotographic photoreceptor, comprising an electroconductive substrate and a photosensitive layer formed on or above the electroconductive substrate, an outermost layer of the photoreceptor being a cured membrane obtained by curing by thermopolymerization or photopolymerization a composition comprising: at least one compound (a) having in a single molecule thereof a charge transporting skeleton and a chain polymerizable functional group, and at least one thermopolymerizable or photopolymerizable silicone polymeric radical polymerization initiator (b) that comprises: an azo compound represented by any one of the following formulae (z-1) to (z-4), or an intermolecular cleavable compound represented by the following formula (2): formula (z-1) being represented by: wherein x represents 3, and n represents an integer of 1 to 10; formula (z-2) being represented by: wherein x represents an integer of 1 to 10, and n represents an integer of 1 to 10; formula (z-3) being represented by: wherein x represents an integer of 1 to 10, and n represents an integer of 1 to 10; and formula (z-4) being represented by: wherein x represents an integer of 1 to 10, and n represents an integer of 1 to 10; and wherein, in the formula (2) each R 1 and R 2 independently represents a linear or branched alkyl group having one or more carbon atoms, or a substituted or unsubstituted aryl group; 1 represents an integer of 1 to 10; m represents an integer of 1 to 10; n represents an integer of 1 to 10; and A represents an intermolecular cleavable radical-generating moiety.