发明授权
- 专利标题： Semiconductive roller, charging roller and electrophotographic apparatus
- 专利标题（中）： 半导体辊，充电辊和电子照相设备
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申请号： US13047919申请日： 2011-03-15
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公开(公告)号： US08882646B2公开(公告)日： 2014-11-11
- 发明人: Kei Tajima , Kiyotaka Okuda , Takashi Marui
- 申请人： Kei Tajima , Kiyotaka Okuda , Takashi Marui
- 申请人地址： JP Kobe
- 专利权人： Sumitomo Rubber Industries, Ltd.
- 当前专利权人： Sumitomo Rubber Industries, Ltd.
- 当前专利权人地址： JP Kobe
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2010-110276 20100512; JP2010-213725 20100924
- 主分类号： F16C13/00
- IPC分类号： F16C13/00 ; C08L71/03 ; C08L9/02 ; C08L71/02 ; G03G15/02 ; C08K5/00
摘要：
The semiconductive roller according to the present invention includes: a roller body having an outer peripheral surface made of a semiconductive rubber composition; and an oxide film covering the outer peripheral surface of the roller body, while the semiconductive rubber composition contains a base polymer and a crosslinking component for crosslinking the base polymer, the base polymer is a mixture of a bicopolymer E containing epichlorohydrin and nitrile-butadiene rubber N, the mass ratio E/N of the bicopolymer E and the nitrile-butadiene rubber N in the mixture is 50/50 to 80/20, and the crosslinking component includes a thiourea-based crosslinking component for crosslinking the bicopolymer E and a sulfur-based vulcanizing component for vulcanizing the nitrile-butadiene rubber N.
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