发明申请
- 专利标题: TONER FOR ELECTROSTATIC CHARGE DEVELOPMENT
- 专利标题(中): 用于静电充电开发的调色剂
-
申请号: US13637774申请日: 2011-10-12
-
公开(公告)号: US20130022371A1公开(公告)日: 2013-01-24
- 发明人: Teruki Kusahara , Junichi Awamura , Tsuyoshi Sugimoto , Hyo Shu , Tomomi Suzuki , Osamu Uchinokura , Takahiro Honda , Satoshi Kojima , Satoshi Ogawa , Daisuke Inoue , Koshi Sato , Daisuke Ito , Ryuuta Yoshida , Syouko Satoh
- 申请人: Teruki Kusahara , Junichi Awamura , Tsuyoshi Sugimoto , Hyo Shu , Tomomi Suzuki , Osamu Uchinokura , Takahiro Honda , Satoshi Kojima , Satoshi Ogawa , Daisuke Inoue , Koshi Sato , Daisuke Ito , Ryuuta Yoshida , Syouko Satoh
- 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
- 优先权: JP2011-014780 20110127
- 国际申请: PCT/JP2011/073449 WO 20111012
- 主分类号: G03G15/08
- IPC分类号: G03G15/08 ; G03G9/00
摘要:
To provide a toner, which contains a binder resin, a colorant, and a releasing agent, wherein the binder resin contains a low molecular weight resin component, where the low molecular weight resin component has a resin softening coefficient (A), represented by the following formula (1), satisfying A>0.165, and has storage elastic modulus (dyne/cm2) G′(Tfb) satisfying G′(Tfb)≦1×104 where Tfb is a flow onset temperature (° C.) of the low molecular weight resin component as measured by a capillary rheometer: A=|[ln G′(r1)−ln G′(r2)]/(T1−T2)| Formula (1) (where T1 is temperature (° C.) at which storage elastic modulus G′(r1) is 1×105 (dyne/cm2) and T2 is temperature (° C.) at which storage elastic modulus G′(r2) is 1×103 (dyne/cm2) as measured by means of a viscoelasticity measuring device with measuring frequency of 1 Hz, and measuring distortion of 1 deg; and ∥ represents an absolute value.)
公开/授权文献
- US08778588B2 Toner for electrostatic charge development 公开/授权日:2014-07-15
信息查询