Patent ID: 8247155

Claim:
A process for producing a colored toner comprising the steps of: providing a polymer composition comprising at least one polymer wherein the at least one polymer has a softening temperature from about 60° C. to about 160° C.; and a colorant; forming an aqueous mineral suspension of at least one substantially water-insoluble multivalent metal phosphate by contacting a water-soluble salt of the multivalent metal with an aqueous solution comprising: a water-soluble phosphate salt; and at least one crystal growth inhibitor selected from the group consisting of: an organic polycarboxylic acid or a salt thereof, a pyrophosphate salt, phosphonic acid or a salt thereof, citric acid, L-Serine, 1,2-dihydroxy-1,2-bis(dihydroxyphosphonyl)ethane, and a Zn 2+ salt, to precipitate the at least one substantially water-insoluble multivalent metal phosphate, wherein the pH of the aqueous mineral suspension is from 5.5 to 14; forming a dispersion of the polymer composition by adding the polymer composition to 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 is at least about 70° C. when the polymer composition is added to the mineral aqueous mineral suspension; cooling the aqueous mineral suspension comprising the dispersed particles of the polymer composition; washing the particles; and recovering the particles.