| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyimide film achieving long elongation of the lifetime of the cutting edge and a reduction of manufacturing costs while allowing improvement of easy sliding properties. SOLUTION: The polyimide film comprises a polyimide resin and particles of barium sulfate. Preferably, the particle sizes of the sulfate particles are 0.1-3.0μm. COPYRIGHT: (C)2008,JPO&INPIT
|
