Invention Grant
- Patent Title: Electrophotographic toner and method of preparing the same
- Patent Title (中): 电子照相调色剂及其制备方法
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Application No.: US12625637Application Date: 2009-11-25
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Publication No.: US08501378B2Publication Date: 2013-08-06
- Inventor: Jeong-hyun Lee , Yong-kyun Jung , Kyeong Pang
- Applicant: Jeong-hyun Lee , Yong-kyun Jung , Kyeong Pang
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR Suwon-si
- Agency: Stanzione & Kim, LLP
- Priority: KR10-2009-0003404 20090115
- Main IPC: G03G9/08
- IPC: G03G9/08

Abstract:
An electrophotographic toner includes a latex, a colorant, and a release agent, wherein G′(80) is in a range of about 2.0×105 Pa to about 3.0×106 Pa and G′(80)/G′(140) is in a range of about 2.0×102 to about 3.0×103, wherein in regard to a molecular weight distribution on a gel permeation chromatography (GPC) chromatogram, the molecular weight region of 1.0×104 g/mol or less of a tetrahydrofuran (THF)-soluble component of the electrophotographic toner is about 5% or less, and the molecular weight region of 1.0×105 g/mol or more of the THF-soluble component of the electrophotographic toner is in a range of about 5% to about 20%, where G′(80) and G′(140) respectively denote storage moduli of the electrophotographic toner at temperatures of 80° C. and 140° C. when a dynamic viscoelasticity according to a sine-wave vibration is measured at an angular velocity of 6.28 rad/sec and at a temperature increase rate of 2.0° C./min.
Public/Granted literature
- US20100178604A1 ELECTROPHOTOGRAPHIC TONER AND METHOD OF PREPARING THE SAME Public/Granted day:2010-07-15
Information query