| 发明名称 | Toner, development agent, and image forming apparatus | ||
| 摘要 | Toner contains a binder resin containing one or more kinds of crystalline resin and one or more kinds of non-crystalline resin. The non-crystalline resin located at the surface portion of the toner forms a shell structure of a continuous phase of the non-crystalline resin and the toner has an amount of melting heat of 30 J/g or more in a second temperature rising as measured by differential scanning calorimetry (DSC). | ||
| 申请公布号 | US9170511(B2) | 申请公布日期 | 2015.10.27 |
| 申请号 | US201414208355 | 申请日期 | 2014.03.13 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Moritani Tatsuru;Moriya Yoshihiro;Yamada Hiroshi;Inoue Ryota;Nakayama Shinya;Yamamoto Atsushi |
| 分类号 | G03G9/08;G03G9/087;G03G9/093 | 主分类号 | G03G9/08 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A toner, comprising a binder resin comprising: one or more kinds of crystalline resin; and one or more kinds of non-crystalline resin, wherein: the one or more kinds of non-crystalline resin is located at a surface portion of the toner and forms a shell structure of a continuous phase; at least one of the one or more kinds of crystalline resin comprises at least a urethane bond or a urea bond at a main chain thereof; and the toner has an amount of melting heat of 30 J/g or more in a second temperature rising as measured by differential scanning calorimetry (DSC). | ||
| 地址 | Tokyo JP | ||