Patent ID: 8652745
Filing Date: 2014-02-18
Classification: G03G

Abstract:
1. A process for producing a colored toner comprising: forming a polymer composition comprising at least one polymer and a colorant, wherein the at least one polymer has a softening temperature from about 60° C. to about 160° C.; forming an aqueous mineral suspension of at least one multivalent metal phosphate; forming a dispersion by combining the polymer composition and the aqueous mineral suspension under agitation to form a solid portion comprising dispersed particles of the polymer composition, wherein the temperature of the aqueous mineral suspension during the dispersion is at least about 70° C.; heating the dispersion to a temperature above a glass transition temperature (Tg) of the polymer composition and increasing the pH to above 7.0; cooling the dispersion comprising the dispersed particles of the polymer composition; and recovering the particles.