Toner processes

Details Toner processes Toner processes

2007-05-08

2007-05-08

Le, Hoa Van (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

C430S137160

Reexamination Certificate

active

11044456

ABSTRACT:
A toner process comprised of a first heating of a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, and a core latex comprised of a first latex containing a vinyl crystalline polyester resin substantially free of crosslinking, and wherein said polyester is substantially dissolved in a vinyl monomer and polymerized to provide said first core latex resin, and which mixture contains a second crosslinked resin containing latex wherein said heating is accomplished in the presence of a coagulant to provide aggregates; adding a shell latex comprised of a polymer substantially free of crosslinking, and further heating said aggregates to provide coalesced toner particles, and wherein said further heating is at a higher temperature than said first heating.

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Michael A. Hopper et al., U.S. Appl. No. 10/606,298, filed Jun. 25, 2003 on Toner Processes.

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