Invention Application
- Patent Title: Toner for electrophotography
- Patent Title (中): 电子照相用碳粉
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Application No.: US11010261Application Date: 2004-12-14
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Publication No.: US20050147911A1Publication Date: 2005-07-07
- Inventor: Eiji Shirai , Tetsuya Ueno , Yasunori Inagaki
- Applicant: Eiji Shirai , Tetsuya Ueno , Yasunori Inagaki
- Applicant Address: JP Tokyo
- Assignee: KAO CORPORATION
- Current Assignee: KAO CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2004-001386 20040106
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/083 ; G03G9/087

Abstract:
A toner for electrophotography, containing a low-softening point polyester-based resin having a softening point of from 80° to 120° C.; and a high-softening point polyester-based resin having a softening point of higher than 120° C. and 160° C. or lower, wherein the low-softening point polyester-based resin has a viscosity at 160° C. of from 500 to 10000 Pa·s, and a ratio of viscosity at 140° C. to viscosity at 180° C. is 10 or less, and wherein a weight ratio of the low-softening point polyester-based resin to the high-softening point polyester-based resin is from 20/80 to 90/10. The toner for electrophotography of the present invention is used for, for instance, developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing method, and the like.
Public/Granted literature
- US07351510B2 Toner for electrophotography Public/Granted day:2008-04-01
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