Toner processes

Details Toner processes Toner processes

1992-04-20

1993-11-30

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

G03G 9087

Patent

active

052664392

ABSTRACT:
A process for the preparation of toner compositions which comprises mixing a monomer or plurality of monomers, pigment and optional charge control additive; dispersing the resulting mixture in an aqueous surfactant medium to provide microdroplets of a geometric size distribution of from about 1.4 to about 1.7; adding a second monomer whereby the second monomer is absorbed by the microdroplets such that the geometric size distribution thereof is reduced to from between about 1.2 to about 1.0; effecting polymerization of the resulting mixture and separating the toner comprised of a core polymer resin, pigment, optional charge control additive and a polymer thereover.

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