基本信息:
- 专利标题： Sealing member and process cartridge
- 专利标题（中）：密封元件和处理盒
- 申请号：EP09176749.1 申请日：2009-11-23
- 公开(公告)号：EP2196864A3 公开(公告)日：2014-07-23
- 发明人： Hayashida, Makoto , Hoshi, Nobuharu , Suzuki, Akira , Watanabe, Emi , Aoki, Kenji
- 申请人： Canon Kabushiki Kaisha
- 申请人地址： 30-2 Shimomaruko 3-chome Ohta-ku Tokyo 146-8501 JP
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： 30-2 Shimomaruko 3-chome Ohta-ku Tokyo 146-8501 JP
- 代理机构： TBK
- 优先权： JP2008316881 20081212
- 主分类号： G03G21/18
- IPC分类号： G03G21/18 ; G03G15/08
摘要：
Provided is a sealing member (94) for preventing leakage of a developer from a developer containing portion (71) of a process cartridge detachable from a main body of an electrophotographic image forming apparatus (100) to an outside of the developer containing portion. The sealing member is made of a thermoplastic elastomer that contains at least a copolymer and a plasticizer. In a molecular weight distribution of a tetrahydrofuran soluble matter of the thermoplastic elastomer measured by gel permeation chromatography, at least one peak is present in each of a region of a molecular weight of 4,000 or less and a region of a molecular weight of 30,000 to 200,000, and a percentage of a component of a molecular weight of 800 or less in a region of a molecular weight of 5,000 or less is 30% or less.
公开/授权文献:
- EP2196864B1 Sealing member and process cartridge 公开/授权日：2019-02-27
IPC结构图谱:
| G | 物理 |
| --G03 | 摄影术；电影术；利用了光波以外其他波的类似技术；电记录术；全息摄影术 |
| ----G03G | 电记录术；电照相；磁记录 |
| ------G03G21/00 | 不包括在G03G13/00至G03G19/00各组中的装置，例如，清洁、消除残余电荷 |
| --------G03G21/16 | .使设备维护简易的机械装置，例如，组合式装置 |
| ----------G03G21/18 | ..应用处理暗盒 |