| 摘要 |
An ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C. of 20 to 50, and which has less compression set and is suitable as a material for a transfer member, a primary transfer member, a secondary transfer member, a cleaning member for image formation bodies, a bias member, a backup member, etc.; an electroconductive ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C. of 20 to 50, and which electrifies an image formation body through direct charge injection by applying voltage, thus enabling to electrify at low voltage, substantially prevent ozone generation, noises and defective image; an electrifying member comprising the above electroconductive rubber foam; electrifying equipment equipped with the above member; and image formation equipment equipped with the above member or the above equipment.
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