发明授权
- 专利标题: Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatus
- 专利标题(中): 电子照相用导电构件,处理盒和电子照相设备
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申请号: US13269172申请日: 2011-10-07
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公开(公告)号: US08298670B2公开(公告)日: 2012-10-30
- 发明人: Norifumi Muranaka , Satoru Yamada , Seiji Tsuru , Kazuhiro Yamauchi , Yuka Hirakoso
- 申请人: Norifumi Muranaka , Satoru Yamada , Seiji Tsuru , Kazuhiro Yamauchi , Yuka Hirakoso
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Fitzpatrick, Cella, Harper & Scinto
- 优先权: JP2010-158615 20100713
- 主分类号: B32B9/04
- IPC分类号: B32B9/04 ; B32B27/00 ; G03G21/16 ; G03G15/02 ; G03G15/06
摘要:
Provided is the following electro-conductive member for electrophotography. The electrical resistance of the member hardly increases even by long-term energization, and hence the member is conducive to stable formation of high-quality electrophotographic images. The electro-conductive member for electrophotography, comprises: an electro-conductive mandrel and an electro-conductive layer, wherein said electro-conductive layer contains an A-B-A type triblock copolymer in which an A-block is a polystyrene having a cation exchange group, and a B-block is a polyolefin, and wherein said A-B-A type triblock copolymer forms a microphase-separated structure comprising a matrix phase formed of said B-block, and one phase formed of the A-block and having a structure selected from the group consisting of a cylindrical structure, a bicontinuous structure and a lamellar structure.
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