Patent ID: 7977024
Filing Date: 2011-07-12
Classification: G03G

Abstract:
1. A process for making toner particles comprising: providing a toner composition comprising a toner resin, a wax, and a charge control agent, the toner resin comprising an epoxy resin and a sulfonated polyester resin; heating the toner composition to a temperature of from about 50° C. to about 120° C. to form a molten toner composition; adding a first aqueous composition to the molten toner composition to form an emulsion comprising a disperse phase and a continuous phase, the disperse phase including the first aqueous composition and the continuous phase including the molten toner composition, wherein there is absent organic toner resin solvent in the continuous phase; performing a phase inversion to create a phase inversed emulsion comprising a disperse phase including toner-sized droplets comprising the molten toner composition and a continuous phase including a second aqueous composition; and solidifying the toner-sized droplets to result in toner particles; wherein the phase inversed emulsion further comprises a surfactant; and wherein the first aqueous composition comprises water and a liquid, wherein the liquid is polar, does not dissolve the toner resin, and is miscible with water.