Invention Grant
- Patent Title: Electrostatic image developing toner, method for manufacturing electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image-forming method and image-forming apparatus
- Patent Title (中): 静电图像显影调色剂,静电图像显影调色剂的制造方法,静电图像显影剂,调色剂盒,处理盒,成像方法和图像形成装置
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Application No.: US12537625Application Date: 2009-08-07
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Publication No.: US08343703B2Publication Date: 2013-01-01
- Inventor: Hideo Maehata , Yasuo Matsumura , Takashi Imai
- Applicant: Hideo Maehata , Yasuo Matsumura , Takashi Imai
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2009-056289 20090310
- Main IPC: G03G9/087
- IPC: G03G9/087

Abstract:
An electrostatic image developing toner, includes: a block copolymer that contains: a block A that has a glass transition temperature of about 60° C. or more; and a crystalline block B that has a melting point of about 25° C. or more derived from an ethylenically unsaturated compound, wherein the block copolymer satisfies the following equations (1) to (3): 30° C.≦[T(0.5 MPa)−T(30 MPa)]≦80° C. (1) 60° C.≦T(0.5 MPa) (2) T(30 MPa)≦80° C. (3) wherein T(0.5 MPa) represents a temperature at which a viscosity of the block copolymer is 104 Pa·s when a pressure applied by a flow tester is 0.5 MPa; and T(30 MPa) represents a temperature at which a viscosity of the block copolymer is 104 Pa·s when a pressure applied by a flow tester is 30 MPa.
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