Patent ID: 7488528
Filing Date: 2009-02-10
Classification: B32B,G03G,Y10T

Abstract:
1. A color image fixing belt, comprising a belt which is made of a polyimide resin and has an inner diameter of no less than 300 mm and whose outer circumference surface has a surface roughness (Rz) of 0.8 μm or less, wherein the belt is made of a copolymer comprising 3,3′4,4′-biphenyltetracarboxylic dianhydride (BPDA), p-phenylenediamine (PDA) and 4,4′-diaminodiphenyl ether (DDE), wherein the molar composition ratio of PDA and DDE (PDA/DDE) is in the range of 5/5 to 9/1.