Patent ID: 7247415
Filing Date: 2007-07-24
Classification: G03G

Abstract:
1. A method for the preparation of toner particles with a mixture of resin particles and additive particles, comprising (1) providing a toner processing apparatus; (2) adding resin particles and additive particles to the toner processing apparatus; (3) blending the resin particles and the additive particles in a blending chamber to form an extrudate, wherein the blending chamber is maintained at a temperature of from about 50° C. to about 230° C.; (4) extruding the extrudate to form extruded material; and (5) grinding the extruded material to form toner particles; wherein a liquid substance comprising an aliphatic alcohol is injected into the blending chamber during the extruding, the liquid substance having a lower boiling point than the temperature of the resin particles; and wherein the liquid substance is not removed from the blending chamber by vacuum extraction; and wherein the liquid substance may be injected into the blending chamber at any specified point during extrusion.