Title:
電子写真機器用導電性ロール
Document Type and Number:
Japanese Patent JP7066100
Kind Code:
B2
Abstract:
An elastic body layer is composed of a conductive rubber composition containing an isoprene rubber, a rubber other than the isoprene rubber, and carbon black. The elastic body layer is phase-separated into a first rubber phase containing the isoprene rubber and a second rubber phase containing the rubber other than the isoprene rubber; in the range of a 5 μm×5 μm square of an arbitrary cross section of the elastic body layer, the area ratio of the first rubber phase is within a range of 10 to 90%. The resistance value of the elastic body layer is within a range of 1.0×103 to 1.0×106Ω. A surface layer contains an electronic conductive agent and a crosslinked body of at least one polyurethane resin of an ether polyurethane resin and a carbonate polyurethane resin, and the glass transition point of the surface layer is within a range of −10 to −70° C.
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Inventors:
Kenta Nakazato
Miyagawa Shinpei
Ken Horiuchi
Naoki Meiraku
Takenori Saito
Hitoshi Saito
Miyagawa Shinpei
Ken Horiuchi
Naoki Meiraku
Takenori Saito
Hitoshi Saito
Application Number:
JP2021535415A
Publication Date:
May 13, 2022
Filing Date:
July 30, 2020
Export Citation:
Assignee:
Sumitomo Riko Co., Ltd.
International Classes:
B32B1/08; G03G15/00; B32B25/04; B32B27/40; F16C13/00; G03G15/02; G03G15/08; G03G21/16
Domestic Patent References:
| JP2016188910A | ||||
| JP2013041264A | ||||
| JP2004245863A | ||||
| JP2004306519A | ||||
| JP2013152438A | ||||
| JP2017116685A | ||||
| JP2009106891A |
Foreign References:
| US20060269327 |
Attorney, Agent or Firm:
Ueno patent office