| 摘要 |
PURPOSE: To prevent the generation of color omission or color unevenness, etc., by developing a molded member decreased in voltage dependency of electric resistance and using the molded member particularly as a member for electrophotographic device. CONSTITUTION: An endless cylindrical film is obtained by kneading an ion- conductive polymer, e.g. a polymer combined with a hydrophilic unit of an alkyl oxide, with a polyvinylidene fluoride and melt-extruding the result. The volume resistivity of a tube is 10<10>Ω.cm and uniform all over its surface and the voltage dependency of the volume resistivity to impressed voltage is extremely small. The molding member has the above-mentioned electric characteristics, so that it is free from the color omission or color unevenness of a toner and capable of obtaining a print extremely excellent in image quality at the time of using it, e.g. for an electrostatic charging member for a photosensitive drum of a copying machine.
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