发明申请
US20130202996A1 TONER, DEVELOPER INCLUDING THE TONER, IMAGE FORMING APPARATUS USING THE TONER, AND BLOCK COPOLYMER
有权
调色剂,包括调色剂,使用调色剂的图像形成装置和嵌段共聚物的开发者
- 专利标题: TONER, DEVELOPER INCLUDING THE TONER, IMAGE FORMING APPARATUS USING THE TONER, AND BLOCK COPOLYMER
- 专利标题(中): 调色剂,包括调色剂,使用调色剂的图像形成装置和嵌段共聚物的开发者
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申请号: US13716385申请日: 2012-12-17
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公开(公告)号: US20130202996A1公开(公告)日: 2013-08-08
- 发明人: Yoshitaka Yamauchi , Masahide Yamada , Yoshihiro Moriya , Taichi Nemoto , Yukiko Nakajima , Keiji Makabe , Daiki Yamashita , Suzuka Amemori , Akiyoshi Sabu
- 申请人: Yoshitaka Yamauchi , Masahide Yamada , Yoshihiro Moriya , Taichi Nemoto , Yukiko Nakajima , Keiji Makabe , Daiki Yamashita , Suzuka Amemori , Akiyoshi Sabu
- 优先权: JP2012-022350 20120203
- 主分类号: G03G9/00
- IPC分类号: G03G9/00 ; G03G15/08
摘要:
The toner includes a pigment; and a block copolymer having a polyester block A including a residual group of a hydroxycarboxylic acid, and a polyester block B including an anionic group. When cross-section of the block copolymer is observed by a tapping mode atomic force microscope to obtain a phase image of the cross-section, the polyester block B, which has relatively large phase delay, is dispersed as domains having an average size of from 20 nm to 100 nm in a domain of the polyester block A, which has relatively small phase delay. The block copolymer has a first glass transition temperature of from −20° C. to 20° C., and a second glass transition temperature of from 35° C. to 65° C. when the first and second glass transition temperatures are determined from a thermogram obtained by subjecting the block copolymer to differential scanning calorimetry (DSC) at a temperature rising speed of 5° C./min.