Electroconductive rubber roller

Details Electroconductive rubber roller Electroconductive rubber roller

2006-04-12

2009-06-09

Omgba, Essama (Department: 3726)

Roll or roller

Concentric layered annulus

Specific composition

C492S053000

Reexamination Certificate

active

07544158

ABSTRACT:
An electroconductive rubber roller constituted of an electroconductive metal core and an electroconductive crosslinked rubber layer including an epichlorohydrin-based rubber, wherein the epichlorohydrin-based rubber is at least one copolymer selected from the group consisting of an epichlorohydrin-ethylene oxide copolymer and an epichlorohydrin-ethylene oxide-allyl glycidyl ether ternary copolymer. The ethylene oxide unit in the epichlorohydrin-based rubber is in a content of 40 to 90 mol %, and, the electroconductive crosslinked rubber layer has a heat quantity (enthalpy: ΔH) 5 mJ/mg or less as measured by a differential scanning calorimetry (DSC) and indicated by a peak appearing within a range of −20 to 150° C.

REFERENCES:
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patent: 5997456 (1999-12-01), Butters et al.
patent: 6648807 (2003-11-01), Hashimoto et al.
patent: 6818370 (2004-11-01), Uchinokura et al.
patent: 7070552 (2006-07-01), Mizumoto
patent: 2006/0252620 (2006-11-01), Urano et al.
patent: 2000-063656 (2000-02-01), None
patent: 2006343717 (2006-12-01), None

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