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Electroconductive rubber roller

  • US 7,070,552 B2
  • Filed: 11/20/2003
  • Issued: 07/04/2006
  • Est. Priority Date: 11/22/2002
  • Status: Active Grant
First Claim
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1. An electroconductive rubber roller having an outermost rubber layer made of a rubber composition containing an ionic-conductive rubber as a main component thereof,wherein the surface of said outermost rubber layer comprises an oxide film formed by oxidation of the outermost rubber layer by irradiating with ultraviolet rays and/or ozone;

  • and said rubber composition contains a dielectric loss tangent-adjusting filler to set a dielectric loss tangent of said electroconductive rubber roller to 0.1 to 1.5.

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