Patent ID: 9141008
Filing Date: 2015-09-22
Classification: G03G

Abstract:
1. An electrophotographic photosensitive member, comprising: a support; an undercoat layer formed on the support; and a photosensitive layer formed on the undercoat layer, wherein the undercoat layer comprises: where, n represents an integer of 0 or more, R R at least one of R a substituent of the substituted aryl group is selected from the group consisting of a halogen atom, a nitro group, a cyano group, an alkyl group, an alkoxycarbonyl group, an alkoxy group, and an alkyl halide group, a substituent of the substituted hetero ring is selected from the group consisting of a halogen atom, a nitro group, a cyano group, an alkyl group, an alkoxycarbonyl group, an alkoxy group, and an alkyl halide group, a substituent of the substituted alkyl group is selected from the group consisting of an alkyl group, an aryl group, a carbonyl group, an alkoxycarbonyl group, and a halogen atom, where, at least one of α, β, and γ is a group having a polymerizable functional group, l and m each independently represents 0 or 1, sum of 1 and m is 0 to 2, α represents an unsubstituted or substituted alkylene group having 1 to 6 main-chain atoms, a divalent group having 1 to 6 main-chain atoms and derived from substitution of O for one of the carbon atoms in the main chain of an unsubstituted or substituted alkylene group, a divalent group having 1 to 6 main-chain atoms and derived from substitution of S for one of the carbon atoms in the main chain of an unsubstituted or substituted alkylene group, or a divalent group having 1 to 6 main-chain atoms and derived from substitution of NR R a substituent of the substituted alkylene group is selected from the group consisting of the polymerizable functional group, an alkyl group having 1 to 6 carbon atoms, a benzyl group, an alkoxycarbonyl group, and a phenyl group, β represents an unsubstituted or substituted phenylene group, a substituent of the substituted phenylene group is selected from the group consisting of the polymerizable functional group, an alkyl group having 1 to 6 carbon atoms, a nitro group, a halogen atom, and an alkoxy group, γ represents a hydrogen atom, an unsubstituted or substituted alkyl group having 1 to 6 main-chain atoms, or a monovalent group having 1 to 6 main-chain atoms and derived from substitution of NR R a substituent of the substituted alkyl group is selected from the group consisting of the polymerizable functional group and an alkyl group having 1 to 6 carbon atoms.