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:
Oct. 01, 2013
Filed:
Sep. 29, 2008
Jae-hyeuk Jeong, Suwon-si, KR;
Duck-hee Lee, Seoul, KR;
Deuck-woo Jang, Yongin-si, KR;
Jung-ik Choi, Suwon-si, KR;
Soon-cheol Jeong, Seongnam-si, KR;
Hae-ree Joo, Anyang-si, KR;
Jae-hyeuk Jeong, Suwon-si, KR;
Duck-hee Lee, Seoul, KR;
Deuck-woo Jang, Yongin-si, KR;
Jung-ik Choi, Suwon-si, KR;
Soon-cheol Jeong, Seongnam-si, KR;
Hae-ree Joo, Anyang-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An electrophotographic toner includes a binder resin, a colorant, and a releasing agent, wherein the electrophotographic toner has a complex viscosity (η) of 4e2 Pa·s to 8e3 Pa·s at a temperature range of 120 to 160° C. and an angular velocity range of 1.6 to 10 rad/s, a rate of change of the complex viscosity of 165 to 185 Pa·s/° C. at 1.6 rad/s, and 70 to 80 Pa·s/° C. at 10 rad/s within the temperature range, a stress relaxation of 1.0 e3 to 4.5 e4 Pa at a relaxation time of 0.05 to 0.3 seconds under a temperature range of 120 to 160° C., and a rate of change of the stress relaxation (ΔG/ΔT) of 785 to 1000 Pa/° C. at 0.05 seconds and 190 to 215 Pa/° C. at 0.3 seconds within the temperature range above.