| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductive seamless belt which controls the aggregation of a conductive filler and is good in flexibility and surface smoothness. <P>SOLUTION: A method for producing the semiconductive seamless belt comprises a process for obtaining a semiconductive polyamic acid solution which is subjected to mixing with the polyamic acid in a dispersion prepared by dispersing the conductive filler in a mixed solution of an organic polar solvent and an imidation promoter or polymerization in the polyamic acid, a process for forming a polyamic acid coating film having a uniform thickness by applying the solution in a cylindrical mold and subjecting it to rotational molding, and a process in which the coating film is heated at a temperature for a time enough to completely convert polyamic acid into the corresponding polyimide. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
