Eastman-kodak Company

Nexpress Solutions, Inc.

Todd C Zion

Dennis E Smith

Matthew C Ezenyilimba

Hichang Yoon

Michael T Regan

Paul E Woodgate

Peter J Makarewicz

A method for the preparation of electrostatographic toner comprising the steps of: a) dissolving a polymer material in an organic solvent to form an organic phase; b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer to form a dispersion and homogenizing the resultant dispersion wherein a flocculating agent is added to the aqueous phase before or after homogenization; c) evaporating the organic solvent and recovering a resultant product; and d) washing and drying the resultant product.

Toner particles of controlled morphology

A method for the preparation of polymer particles comprising the steps of: a) forming an organic phase by dissolving a polymer material in a solvent; b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer and homogenizing the resultant dispersion, thereby forming spherical particles having a selected particle and uniform particle size distribution; c) following the homogenizing, adding a particle shape-modifying surface active material to the spherical particles; and d) removing the solvent, thereby producing irregularly shaped polymer particles having substantially the same selected particle size and particle size distribution as that of the spherical particles.

Polymer particles of controlled shape

A process for preparing polyalkylsilsesquioxane particles comprising:

Preparation of polyalkylsilsesquioxane particles

Growing community of inventors

Rochester, NY, United States of America

Todd C Zion