Patent ID: 8034527

Claim:
A method of making emulsion aggregation toner particles, comprising: forming a plurality of core-shell nanoparticles wherein cores of the core-shell nanoparticles are comprised of a crystalline polyester and shells over individual ones of the cores of the core-shell nanoparticles are comprised of an amorphous polyester, and wherein the shell of the core-shell nanoparticle substantially or completely encompasses the core of the core-shell nanoparticle, wherein the shell of the core-shell nanoparticles is substantially to completely free of crystalline material, and wherein the core-shell nanoparticles have an average particle size of about 1 nm to about 250 nm; subjecting an emulsion of the plurality of core-shell nanoparticles to aggregation to form cores of toner particles; and forming shells that encapsulate individual ones of the cores of the toner particles, wherein the shells of the toner particles comprise an amorphous polyester.