Resin particles

Details Resin particles Resin particles

C - Chemistry, Metallurgy

08

F

402/8

C08F 2/08 (2006.01) G03G 9/08 (2006.01) G03G 9/087 (2006.01)

Patent

CA 1312407

- 1 - Abstract: The present invention is directed to a process for preparing polymer particles suitable for use as electrophotographic toner. The substantially spherical resin particles have a weight average particle size of 1 to 30 micron meters and contain as main components, a carbon atom, a silicon atom of 1 X 10-1 to 7 % by weight and/or a fluorine atom of 1 X 10-2 to 2 % by weight. The particles are prepared by polymerizing a polymerizable monomer in an organic solvent having a higher solubility parameter (SP value) than the resultant polymer by at least 1.0 in the presence of a dispersion stabilizer which is soluble in said organic solvent and which has a dialkylsiloxane bond and/or a fluorine atom, and then removing said organic solvent.

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