Preparation method of toner having micro radius

Details Preparation method of toner having micro radius Preparation method of toner having micro radius

2008-05-27

2008-05-27

Chapman, Mark A (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

Reexamination Certificate

active

11139562

ABSTRACT:
A preparation method of a toner having a micro diameter includes: blending a monomer and a dispersing agent in distilled water to prepare a monomer dispersion; polymerizing the monomer dispersion by adding a first polymerization initiator to about 1% by volume to about 50% by volume of the monomer, to cause a first polymerization; mixing the remaining monomer dispersion with the polymerized solution; and polymerizing the mixed solution by adding a wax emulsion and a second polymerization initiator, to cause a second polymerization. The present invention may be advantageously used for obtaining spherical, uniformly micro sized toner particles through the emulsion polymerization only, without performing the aggregation or melting process.

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Korean Office Action for corresponding Korean Patent Application No. 10-2004-0040839 dated Feb. 16, 2006.

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