Patent ID: 8551681

Claim:
A method for preparing an emulsion aggregation toner formulation for electrophotography, the method comprising: loading a plurality of pre-emulsified polyester binder resins into an extruder and extruding the plurality of pre-emulsified polyester binder resins together to form an extruded polyester binder resin having a broader molecular weight distribution than the pre-emulsified polyester binder resins; after extruding the plurality of pre-emulsified polyester binder resins and forming the extruded polyester binder resin, mechanically grinding the extruded polyester binder resin; after mechanically grinding the extruded polyester binder resin, preparing a polyester resin emulsion using the extruded and ground polyester binder resin; and combining and agglomerating the prepared polyester resin emulsion with at least one colorant dispersion and a wax dispersion to form the emulsion aggregation toner formulation.