Patent ID: 9034474
Filing Date: 2015-05-19
Classification: C08G,C08L,G03G,Y10T

Abstract:
1. A fixing belt comprising a cylindrical base composed of a metal and a polyimide resin layer formed on the inner peripheral surface of the cylindrical base, wherein the polyimide resin layer has an imidization rate of 70% to 93%, and comprises a polyimide resin containing a constitutional unit represented by formula (1) and a constitutional unit represented by formula (3), or a polyimide resin containing a constitutional unit represented by formula (2) and a constitutional unit represented by formula (4): wherein a molar ratio of the constitutional units represented by formula (1) to the constitutional units represented by formula (3), or the constitutional units represented by formula (2) to the constitutional units represented by formula (4) is from 4/6 to 6/4.