Method for forming toner particles having controlled morphology and containing quaternary ammonium tetraphenylborate charge control agents

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United States of America Patent

APP PUB NO 20030008227A1
SERIAL NO

09814899

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Abstract

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A process for forming non-spherical toner particles by limited coalescence comprises: forming an organic phase comprising a polymeric material, a pigment, a quaternary ammonium tetraphenylborate salt, and a water-immiscible liquid; dispersing the organic phase in an aqueous phase containing a solid colloidal stabilizer; forming a suspension of small droplets of the organic phase in the aqueous phase by high shear agitation; removing the water-immiscible liquid from the small droplets, thereby forming a suspension of small solid particles in the aqueous phase; and separating and drying the solid particles, which are toner particles having a non-spherical shape.

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Patent Owner(s)

Patent OwnerAddress
EASTMAN KODAK COMPANY343 STATE STREET ROCHESTER NEW YORK 14650

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ezenyilimba, Matthew C Walworth, NY 17 159
McGrath, Gretchen S Rochester, NY 8 18
Wilson, John C Rochester, NY 132 2210

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