Patent ID: 8993205
Filing Date: 2015-03-31
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 wherein, in the formulae (C1) and (C2), R at least one of R at least one of R R R wherein, in the formula (i), R Y D “*” in the formula (i) indicates the side to which a nitrogen atom in the formula (C1) or a nitrogen atom in the formula (C2) is bound, wherein, in the formula (ii), D α represents an alkylene group having 1 to 6 main-chain atoms, an alkylene group having 1 to 6 main-chain atoms and being substituted with an alkyl group having 1 to 6 carbon atoms, an alkylene group having 1 to 6 main-chain atoms and being substituted with a benzyl group, an alkylene group having 1 to 6 main-chain atoms and being substituted with an alkoxycarbonyl group, or an alkylene group having 1 to 6 main-chain atoms and being substituted with a phenyl group, one of the carbon atoms in the main chain of the alkylene group may be replaced with O, S, NH, or NR β represents a phenylene group, a phenylene group substituted with an alkyl group having 1 to 6 carbon atoms, a phenylene group substituted with a nitro group, or a phenylene group substituted with a halogen atom, γ represents an alkylene group having 1 to 6 main-chain atoms, or an alkyl group having 1 to 6 main-chain atoms and being substituted with an alkyl group having 1 to 6 carbon atoms, l, m, and n each independently represent 0 or 1, A “*” in the formula (ii) indicates the side to which a nitrogen atom in the formula (C1) or a nitrogen atom in the formula (C2) is bound, wherein, in the formulae (A1) to (A9), R at least two of R a substituent of the substituted alkyl group is an alkyl group, an aryl group, a halogen atom, or a carbonyl group, a substituent of the substituted aryl group or hetero ring is a halogen atom, a nitro group, a cyano group, an alkyl group, a halogen-substituted alkyl group, an alkoxy group, or a carbonyl group, Z R R R R R R R R