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. 23, 2010
Filed:
Jan. 27, 2006
Hisashi Kurokawa, Tokyo, JP;
Hisashi Kurokawa, Tokyo, JP;
Zeon Corporation, Tokyo, JP;
Abstract
A process for producing a polymerized toner, comprising the step of polymerizing a polymerizable monomer composition containing a polymerizable monomer and a colorant in the presence of a polymerization initiator in an aqueous dispersion medium to form colored polymer particles, the process comprising the steps of mixing the polymerizable monomer with the colorant to prepare a polymerizable monomer mixture having an initial viscosity of 10 to 3,000 mPa·s or 0.3 to 1 mPa·s as measured at 25° C. by a Brookfield type viscometer, and then feeding the polymerizable monomer mixture to a media type dispersing machine to finely disperse the colorant by the media type dispersing machine, thereby preparing a dispersed polymerizable monomer mixture having a viscosity after the dispersion, the ratio of increase in viscosity of which is 1.0 to 10 times or 100 to 2,000 times as high as the initial viscosity.