RUBBER COMPOSITION AND RUBBER ROLLER BY USE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition and a rubber roller by use thereof useful as a rubber material of the rubber roller for carrying which is excellent in abrasion resistance and unlikely to contaminate the surface of paper and film by blending electrically conductive carbon black as electrostatic measures. SOLUTION: This rubber composition contain carbon black wherein the rubber composition is an ethylene/propylene/diene rubber having an iodine value of not less than 20 as a base, an iodine-adsorption amount of 20 wt.% to 50 wt.% is not less than 40 mg/g and oil-absorbing amount of DBP(dibutyl phthalate) is not less than 100 ml/100 g; paraffin process oil or 5 wt.%-20 wt.%; and an organic peroxide as a crosslinking agent. In addition, the rubber roller has an elastic layer 2 of the rubber composed of a crosslinking form of such a rubber composition on the periphery of core axis 1 of the roller.