发明授权
- 专利标题: Toner and developer
- 专利标题(中): 墨粉和开发商
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申请号: US14359429申请日: 2012-10-17
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公开(公告)号: US09316938B2公开(公告)日: 2016-04-19
- 发明人: Masaki Watanabe , Satoshi Ogawa , Teruki Kusahara , Ryuta Yoshida
- 申请人: Masaki Watanabe , Satoshi Ogawa , Teruki Kusahara , Ryuta Yoshida
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P
- 优先权: JP2011-253742 20111121
- 国际申请: PCT/JP2012/077383 WO 20121017
- 国际公布: WO2013/077131 WO 20130530
- 主分类号: G03G9/087
- IPC分类号: G03G9/087 ; G03G9/08
摘要:
A toner including a non-crystalline polyester resin and a crystalline polyester resin, wherein a tetrahydrofuran soluble component of the non-crystalline polyester resin has a weight-average molecular weight of 3,000 to 8,000 measured by gel permeation chromatography, and wherein the toner has a glass transition temperature A before an extraction process of the toner with methanol and a glass transition temperature B after the extraction process of the toner with methanol, and a difference between A and B (B−A) is 2.0° C. or less.
公开/授权文献
- US20140322643A1 TONER AND DEVELOPER 公开/授权日:2014-10-30
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