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:
Mar. 12, 2013
Filed:
Nov. 03, 2009
Wook Jang, Daejeon, KR;
Chang Soon Lee, Daejeon, KR;
Wook Jang, Daejeon, KR;
Chang Soon Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A polymerized toner is provided. The polymerized toner has cores containing polyvinylidene fluoride particles. The polyvinylidene fluoride particles have an average particle diameter of 1.1 to 1.5 μm and a melting temperature (T) of 140 to 160° C. The polyvinylidene fluoride particles are distributed at a higher concentration near the surface of the cores. This distribution improves the affinity of the cores for silica as an external additive to achieve an increased amount of surface charge and improved transfer efficiency of the polymerized toner. Further provided is a method of producing the polymerized toner.