Toner processes
AssigneeXerox Corporation
InventorsSarah J. P. Robinson, Thomas E. Enright, Alan E. J. Toth, Milan Maric, Michael S. Hawkins, Marko D. Saban, Guerino G. Sacripante, George Liebermann
Life of this patent
Estimating the term…
Abstract
A toner process comprising the aggregation and coalescence of a sulfonated polyester and a colorant, and wherein said polyester possesses a degree of sulfonation or a sulfonation percentage of from about 0.5 to about 3 mol percent.
Claims29
A process for the preparation of toner which comprises the heating of a sulfonated polyester and a colorant, and wherein said polyester possesses a sulfonation percentage of from about 0.5 to about 3 mol percent, and wherein said heating is accomplished by heating in sequence said polyester and colorant at a first temperature about below the glass transition temperature of said polyester, followed by second subsequent second heating at about above the glass transition of said polyester, and wherein aggregation/coalescence of said polyester and said colorant results, and which process is accomplished by solvent flashing.
A toner process comprising heating and solvent flashing a sulfonated polyester, colorant, and optional wax, and wherein said polyester possesses a sulfonation percentage of from about 0.5 to about 3 mol percent, and wherein said heating is accomplished by heating in sequence said polyester and colorant at a first temperature about below the glass transition temperature of said polyester, followed by second subsequent second heating at about above the glass transition of said polyester, and wherein aggregation/coalescence of said polyester and said colorant results.
Dependencies are inferred from the claim text.