Invention Grant
- Patent Title: Electroconductive rubber composition for electrophotographic apparatuses and charging roller for use in electrophotographic apparatuses manufactured using the same
- Patent Title (中): 用于电子照相设备的导电橡胶组合物和用于使用其制造的电子照相设备中的充电辊
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Application No.: US13194476Application Date: 2011-07-29
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Publication No.: US08747701B2Publication Date: 2014-06-10
- Inventor: Kadai Takeyama , Takenori Saito , Naoaki Sasakibara , Keiichi Ikegami
- Applicant: Kadai Takeyama , Takenori Saito , Naoaki Sasakibara , Keiichi Ikegami
- Applicant Address: JP Aichi
- Assignee: Tokai Rubber Industries, Ltd.
- Current Assignee: Tokai Rubber Industries, Ltd.
- Current Assignee Address: JP Aichi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2010-172282 20100730; JP2011-120443 20110530
- Main IPC: H01B1/00
- IPC: H01B1/00 ; G03G15/02 ; H01B1/12 ; H01B3/00 ; G03G15/20
Abstract:
The charging roller has a base layer formed of an electroconductive rubber composition containing (a) a polar rubber having an unsaturated bond or an ether bond, (b) an ion carrier containing one or more phosphonium salts selected from the group consisting of phosphonium salts having the formulae (1) and (2), and (c) a cross-linker, wherein the amount of (b) component ranges from 0.1 to 10 parts by mass per 100 parts by mass of the (a) component. The formula (1) represents [(H9C4)3(CnH2n+1)P]+(CF3SO2)2N—, and the formula (2) represents [(H9C4)3(CnH2n+1)P]+(CF3SO3)—.
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