Toner for developing electrostatic image

Details Toner for developing electrostatic image Toner for developing electrostatic image

1992-09-21

1994-10-11

Rosasco, Steve

Radiation imagery chemistry: process, composition, or product th

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

Post imaging process, finishing, or perfecting composition...

430137, 430138, 42840224, G03G 900

Patent

active

053546407

ABSTRACT:
A toner for developing an electrostatic image has toner particles. The toner particles are prepared by suspension polymerization and contain at least two components comprised of a high softening point resin-A and a low softening point material-B. The toner particles each have a structure separated into a phase-A mainly composed of the resin-A and a phase-B mainly composed of the material-B. The phase-B is absent in the vicinity of the toner particle surface, ranging from its surface to a depth 0.15 time a toner particle diameter. The toner particles contain an organic solvent, a polymerizable monomer or a mixture thereof in a quantity of not more than 1,000 ppm.

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patent: 5135833 (1992-08-01), Matsunaga et al.
patent: 5143812 (1992-09-01), Mori et al.
patent: 5153092 (1992-10-01), Kao et al.

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