Patent ID: 8092718

Claim:
A semiconductive seamless belt comprising a polyimide, which is obtained from a polyamide acid solution containing a tertiary amine having a boiling point of 200° C. or higher and an acid dissociation constant pKa of 4 to 9, wherein the polyamide acid solution comprises at least one of: a copolymer comprising a repetition of a component A in which a fully aromatic skeleton which is a tetracarboxylic acid residue and a p-phenylene skeleton which is a diamine residue are bound by an imide bond, and a component B in which a fully aromatic skeleton which is a tetracarboxylic acid residue and a diphenyl ether skeleton which is a diamine residue are bound by an imide bond; or a blend of: a polymer comprising the component A as a repeating unit, and a polymer comprising the component B as a repeating unit, and wherein the ratio of component A to component B is 70/30 to 30/70.