| 摘要 |
A film is made of an insulating matrix resin and an electroconductive material, in which the electroconductive material is dispersed in the insulating matrix resin in such a manner that a surface resistivity of A [Omega] of the film and a volume resistivity of B [Omega.cm] of the film in the direction of a thickness thereof normal to the surface of the film satisfy a relationship of: A>B, and when the film has a thickness of T [cm], the electroconductive material is dispersed in the insulating matrix resin in such a manner that the surface resistivity of A [Omega] of the film and the volume resistivity of B [Omega.cm] of the film satisfy a relationship of; A[Omega]'T [cm]>B [Omega.cm]. This film can be prepared by a centrifugal molding method.
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