Resin particles.

摘要

Disclosed is a process for preparing polymer particles suitable for electrophotographic toner. The substantially spherical resin particles have a weight average particle size of 1 to 30 micron meters and contain a carbon atom as main component, 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.