Invention Grant
- Patent Title: Toner for electrophotography
- Patent Title (中): 电子照相用碳粉
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Application No.: US11979775Application Date: 2007-11-08
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Publication No.: US07935470B2Publication Date: 2011-05-03
- Inventor: Jae-hyeuk Jeong , Kyung-yol Yon , Min-young Cheong , Kyeong Pang , Yo-da Shin , Hae-ree Joo
- Applicant: Jae-hyeuk Jeong , Kyung-yol Yon , Min-young Cheong , Kyeong Pang , Yo-da Shin , Hae-ree Joo
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Roylance, Abrams, Berdo & Goodman, L.L.P.
- Priority: KR10-2007-0009530 20070130
- Main IPC: G03G9/00
- IPC: G03G9/00

Abstract:
A toner for electrophotography is provided including a binder resin, a colorant, a charge control agent, and a release agent, wherein a glass transition temperature (Tg) is over 55° C., a molecular weight distribution (MWD) is in the range of about 4.5 to 5.5 when a weight average molecular weight is in the range of about 45,000 to 55,000, and a compression elastic modulus is about 750 MPa or higher at room temperature. Mechanical properties of toner can be obtained at room temperature by controlling rheological properties of toner. The developing properties and fixing properties of toner for electrophotography can be improved by lowering viscosity at a high temperature, and thus image quality can be stabilized.
Public/Granted literature
- US20080182195A1 Toner for electrophotography Public/Granted day:2008-07-31
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