Patent ID: 8886106

Claim:
An intermediate transfer belt for an electrophotographic image forming apparatus comprising a polyimide having a dispersed conductive fillers wherein the polyimide consists of a unit structure having W and a unit structure having Y represented by Formula (3); wherein A represents a group selected from the group consisting of aliphatic group, biphenyl group, benzophenone group, diphenylalkane group, diphenyl ether group, diphenylsulfone group, naphthalene group and phenyl group, W represents a divalent aromatic diamine residue without having hydroxyl group, and Y represents a divalent aromatic diamine residue having hydroxyl group which is represented by Formula (4); Formula (4) wherein X represents a group selected from Formulas (a) to (e), n, m, l each represents 0 or 1, and at least one of m and l is 1, wherein p in Formula (c) and q in Formula (e) each is an integer of 1 to 5; and r is in the range of 0 to 90 mol % and s is in the range of 10 to 100 mol % and r+s=100 mol %.