Conductive rubber roller
AssigneeCanon Kasei Kabushiki Kaisha
InventorsRyuta Urano, Erika Umeki, Naoki Koyama
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Abstract
A conductive rubber roller comprising a conductive core material and provided thereon a rubber layer; the rubber layer being formed by using a rubber composition containing as rubber components at least a polar rubber and an ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer; the ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer having a melt peak temperature of from 20 to 30° C. and a melt enthalpy change ΔH of from 40 to 70 mJ/mg as measured with a differential scanning calorimeter; and the allyl glycidyl ether in the ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer being in a copolymerization ratio of from more than 10 mol % to 20 mol % or less.
Claims7
A conductive rubber roller comprising a conductive core material and provided thereon a rubber layer;
- said rubber layer being formed by using a rubber composition containing as rubber components at least a polar rubber and an ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer;
- said ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer having a melt peak temperature of 20° C. or higher and 30° C. or lower and a melt enthalpy change ΔH of 40 mJ/mg or more and 70 mJ/mg or less as measured with a differential scanning calorimeter;
- and
- the allyl glycidyl ether in said ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer being in a copolymerization ratio of from more than 10 mol % to 20 mol % or less.
Dependencies are inferred from the claim text.