The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2013
Filed:
Nov. 25, 2009
Jeong-hyun Lee, Suwon-si, KR;
Yong-kyun Jung, Suwon-si, KR;
Kyeong Pang, Suwon-si, KR;
Samsung Electronics Co., Ltd, Suwon-si, KR;
Abstract
An electrophotographic toner includes a latex, a colorant, and a release agent, wherein G'(80) is in a range of about 2.0×10Pa to about 3.0×10Pa and G′(80)/G′(140) is in a range of about 2.0×10to about 3.0×10, wherein in regard to a molecular weight distribution on a gel permeation chromatography (GPC) chromatogram, the molecular weight region of 1.0×10g/mol or less of a tetrahydrofuran (THF)-soluble component of the electrophotographic toner is about 5% or less, and the molecular weight region of 1.0×10g/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.