Patent ID: 9442400
Filing Date: 2016-09-13
CPC Classification: C08G,G03G

Claim Text:
1. A method of producing an electrophotographic photoreceptor, comprising: forming a photosensitive layer by applying, onto an electrically conductive substrate, a coating liquid that includes at least a resin binder that is a reaction product of a siloxane component selected from among (C), (D), (E) and (F) below in a solution polymerization, followed by an interfacial polymerization, and that is a copolymeric polyarylate resin having structural units of Chemical Structural Formula 1 below: where partial structural formulas (A 1 ), (A 2 ), (B 1 ), (B 2 ), (C), (D), (E) and (F) are structural units making up the resin binder; a 1 , a 2 , b 1 , b 2 , c, d, e and f represent mol % of the respective structural units (A 1 ), (A 2 ), (B 1 ), (B 2 ), (C), (D), (E) and (F), with a 1 +a 2 +b 1 +b 2 +c+d+e+f being 100 mol % and c+d+e+f being from 0.001 to 10 mol %; W 1 and W 2 are two different moieties selected from the group consisting of a single bond, —O—, —S—, —SO—, —CO—, —SO 2 —, —CR 22 R 23 — (R 22 and R 23 being a hydrogen atom, an alkyl group or halogenated alkyl group of 1 to 12 carbons, or a substituted or unsubstituted aryl group of 6 to 12 carbons), substituted or unsubstituted cycloalkylidene groups of 5 to 12 carbons, substituted or unsubstituted α,ω-alkylene groups of 2 to 12 carbons, a 9,9-fluorenylidene group, substituted or unsubstituted arylene groups of 6 to 12 carbons, and divalent groups containing an aryl group or arylene group of 6 to 12 carbons; R 1 to R 20 are each a hydrogen atom, an alkyl group of 1 to 8 carbons, a fluorine atom, a chlorine atom or a bromine atom; R 21 is a hydrogen atom, an alkyl group of 1 to 20 carbons, an aryl group, a cycloalkyl group, a fluorine atom, a chlorine atom or a bromine atom; and “s” and “t” are integers of 1 or more.