| 摘要 |
<p>PURPOSE:To provide the title process by which an electrophotographic toner sufficiently electrifiable can be obtained, by producing polymer particles each containing a charge controller homogeneously dispersing therein. CONSTITUTION:The process comprises continuously feeding a liquid mixture serving as a dispersed phase and comprising a monomer composition and a compound represented by the formula (wherein R1 and R2 each is hydrogen, nitro, a halogen, an alkyl, amino, or carboxy; M1 is Zn, Fe, Ni, Co, or Cr; X is hydrogen, sodium, potassium, or an organic ammonium salt; and n is 1-4) and an aqueous medium serving as a continuous phase to a dispersing machine in a controlled proportion from respective containers through respective channels to obtain a suspension containing polymerizable droplets of a desired size, sending the suspension from the machine to a polymerizer, and carrying out the polymerization to obtain polymer particles.</p> |
