Patent ID: 6322946
Filing Date: 2001-11-27
Classification: G03G

Abstract:
A process for producing toner particles, comprising:(a) providing a mixture of partially polymerized monomer or comonomers until a decree of conversion is within about 1% to about 5% of the onset of gel-effect;(b) forming a suspension of the partially polymerized monomer or comonomers;(c) suspension polymerizing the partially polymerized monomer or comonomers while commencing starved feed addition of a second monomer or comonomers;(d) selecting a starting time of said starved feed addition into said suspension undergoing polymerization to form said toner particles;wherein said toner particles have a particle morphology selected from the group consisting of core-shell, pseudo core-shell having a composition gradient between a shell and a core, and a polyblend of a low molecular weight dispersed phase in a high molecular weight continuous phase.