| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide semi-conductive belts using a polyamide-imide, which have high productivity and less variation of surface resistance values and volume resistance values of products without deteriorating mechanical strength, and also provide its manufacturing method. <P>SOLUTION: The semi-conductive belt is molded by using a material composed of a solution having kinetic viscosity of 1,000-10,000 mPa s, and containing the polyamide-imide having a logarithmic viscosity of 0.4-1.2 dl/g and conductive carbon black. The semi-conductive belt is molded by centrifugal molding. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
