发明授权
US07476483B2 Carrier for electrophotographic developer and two-component electrophotographic developer
失效
用于电子照相显影剂和双组分电子照相显影剂的载体
- 专利标题: Carrier for electrophotographic developer and two-component electrophotographic developer
- 专利标题(中): 用于电子照相显影剂和双组分电子照相显影剂的载体
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申请号: US11296630申请日: 2005-12-07
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公开(公告)号: US07476483B2公开(公告)日: 2009-01-13
- 发明人: Yoichi Kamikoriyama , Kenji Suzuoka , Takashi Nakashima , Kazuya Kinoshita , Yuji Sato , Hiromichi Kobayashi , Takeshi Gondo , Takashi Hikichi
- 申请人: Yoichi Kamikoriyama , Kenji Suzuoka , Takashi Nakashima , Kazuya Kinoshita , Yuji Sato , Hiromichi Kobayashi , Takeshi Gondo , Takashi Hikichi
- 申请人地址: JP Tokyo JP Chiba
- 专利权人: Mitsui Mining and Smelting Co., Ltd.,Powdertech Co., Ltd.
- 当前专利权人: Mitsui Mining and Smelting Co., Ltd.,Powdertech Co., Ltd.
- 当前专利权人地址: JP Tokyo JP Chiba
- 代理机构: The Webb Law Firm
- 优先权: JP2004-354630 20041207
- 主分类号: G03G9/107
- IPC分类号: G03G9/107
摘要:
A carrier for electrophotographic developer comprises a resin carrier core comprising a binder resin and magnetic powder dispersed in the binder resin, and a coating layer comprising a coating resin on a surface of the core, the binder resin being a silicone resin obtained by curing of a polysiloxane compound (A) having an epoxy group and a polysiloxane compound (B) having a group capable of reacting with the epoxy group, due to a ring-opening addition reaction; the binder resin containing a functional group which is an epoxy group and/or a group capable of reacting with an epoxy group; the coating resin containing a functional group capable of reacting with the functional group of the binder resin; the functional group of the coating resin and the function group of the binder resin forming a chemical bond.
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