| 摘要 |
PURPOSE:To provide a laminated film having antistatic capacity imparted thereto under economically advantageous conditions without damaging mechanical characteristics of the film and exerting no adverse effect on other imparted functions. CONSTITUTION:In a co-extrusion laminated polyester film consisting of at least three layers wherein both outer layers respectively having a thickness of 0.05-1.5mum are laminated on an inner layer and having a volume resistivity value of 10<12>-10<17> OMEGAcm, the surface resistivity values of both outer layers are respectively 10<9>-10<14>OMEGA/square and the surface resistivity value of the film formed from the inner layer alone is 10<7>-10<13>OMEGA/square and 10<-1>-10<-4> times the surface resistivity values of both outer layers. |
