Title:
CONDUCTIVE RUBBER ROLLER AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/064418
Kind Code:
A1
Abstract:
A conductive rubber roller exhibiting an excellent stability in charging and transferring and being remarkably low in dependence of resistance on the environment and voltage, and a process for producing the same. The conductive rubber roller comprises a rubber layer formed on a supporting shaft (13), and including a base layer (11) of an ion conductive rubber layer and a surface layer (12) of an electron conductive polymer layer having a surface resistance lower than that of the ion conductive rubber layer, characterized in that the ratio (A)/(B) between the surface resistance (A) of the ion conductive rubber layer and the surface resistance (B) of the electron conductive polymer layer is set in the range of 1<(A)/(B)≤100. A process for producing the conductive rubber roller is also provided. Preferably, the surface layer (12) has a thickness of 5-40 μm.
Inventors:
MATSUMURA SHIGENORI (JP)
Application Number:
PCT/JP2004/014928
Publication Date:
July 14, 2005
Filing Date:
October 08, 2004
Export Citation:
Assignee:
YAMAUCHI CORP (JP)
MATSUMURA SHIGENORI (JP)
MATSUMURA SHIGENORI (JP)
International Classes:
F16C13/00; G03G15/02; G03G15/16; (IPC1-7): G03G15/02; G03G15/16
Foreign References:
| JPH10282813A | 1998-10-23 | |||
| JP2001109231A | 2001-04-20 |
Attorney, Agent or Firm:
Fukami, Hisao (Mitsui Sumitomo Bank Minamimorimachi Bldg.
1-29, Minamimorimachi 2-chome, Kita-ku, Osaka-sh, Osaka 54, JP)
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