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
-
申请号： US14512010申请日： 2014-10-10
-
公开(公告)号： US09274460B2公开(公告)日： 2016-03-01
- 发明人: Kei Tajima
- 申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
- 申请人地址： JP Kobe-shi
- 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-shi
- 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 ; G03G15/16 ; C08L9/02 ; C08L71/02 ; C08L71/03 ; 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.