US Patent 7687218 Silicone wax-containing toner particles with controlled morphology
Patent 7687218 was granted and assigned to Eastman Kodak on March, 2010 by the United States Patent and Trademark Office.
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The present invention is a method for the preparation of electrostatographic toner including the following steps. A first dispersion is prepared with a solvent, a silicone wax, and a hyperdispersant. The first dispersion is added to an organic solvent containing a polymer material to form an organic phase. The organic phase is dispersed in an aqueous phase containing a particulate stabilizer to form a second dispersion. The second dispersion is homogenized. The organic solvent is evaporated from the second dispersion and the resultant product is recovered, washed and dried. In an alternate method the hyperdispersant is added directly to the organic phase before mixing with the aqueous phase.
US Patent 07687218 Silicone wax-containing toner particles with controlled morphology US Patent 7687218 Silicone wax-containing toner particles with controlled morphology
US Patent 07687218 Silicone wax-containing toner particles with controlled morphology
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