Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1998-06-04
2000-01-25
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430111, 430137, G03G 9087
Patent
active
060176709
ABSTRACT:
An electrophotographic toner having a volume-average particle diameter of from 3 to 15 .mu.m. The toner comprises a spherical particulate material having an average circularity of not less than 0.97 having a colorant encapsulated in a binder resin. The binder resin is a styrene-acrylic resin having an acid value of from 30 to 150 which is at least partly crosslinked. The tetrahydrofuran insoluble content in the whole of the binder resin including crosslinkd portions in the particulate material is from 0.5 to 70% by weight.
REFERENCES:
patent: 5180649 (1993-01-01), Kukimoto et al.
patent: 5338638 (1994-08-01), Tsichiya et al.
patent: 5489498 (1996-02-01), Ohno et al.
patent: 5500318 (1996-03-01), Tanikawa et al.
Hashizume Toyomi
Ito Takashi
Nomura Minoru
Ohminato Hiroyuki
Okuno Shoji
Dainippon Ink and Chemicals Inc.
Martin Roland
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