Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1988-03-11
1989-08-08
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430111, 430114, G03G 910, G03G 912
Patent
active
048552070
ABSTRACT:
A developer for electrophotography is disclosed, which comprises toner particles containing therein at least an olefin resin having a melt index of 25.about.700 g/10 min, which toner particles may comprise a colorant which is prepared by a flushing method by using a pigment component and an olefin resin having a melt index of 25.about.700 g/10 min, when necessary, with addition thereto a humic acid component selected from the group consisting of humic acid, a salt of humic acid, and a humic acid derivative.
REFERENCES:
patent: 3941898 (1976-03-01), Sadamastu
patent: 3980576 (1976-09-01), Vijayendran
patent: 4565763 (1986-01-01), Vehiyama
patent: 4595646 (1986-06-01), Tsubuko
patent: 4690881 (1987-09-01), Nagai
patent: 4780389 (1988-10-01), El-Sayed
Nagai Kayoko
Tsubuko Kazuo
Lindeman Jeffrey A.
Michl Paul R.
Ricoh & Company, Ltd.
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