POLYIMIDE SEAMLESS BELT AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a polyimide seamless belt high in quality and safety having high productivity by using a polyimide resin having high mechanical and electrical properties and good environmental resistance without deteriorating its properties and a method for producing the belt. SOLUTION: The belt is manufactured by a centrifugal molding method from a material solution containing a polyamide acid which is a polyimide precursor, at least one curing accelerator selected from a substituted or unsubstituted nitrogen-containing heterocyclic compound the proton complex of which has an acid dissociation constant pKa of 0-8 in an aqueous solution and the N-oxide compound of the nitrogen-containing compound, and an inorganic filler 1μm on below in average particle size and 0-8 in pH measured by JIS K 6221.