Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1982-04-26
1984-09-25
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430115, 430116, 430137, G03G 912
Patent
active
044736290
ABSTRACT:
A liquid developer containing negatively charged toner particles for developing electrostatic charge images, comprising a carrier liquid having a high electrical resistivity and a low dielectric constant, a pigment or dye constituent, a resinous binder, a charge controller and conventional additives, wherein the pigment or dye constituent is dispersed in a solution of styrene/butadiene copolymer binder in the carrier liquid; and a process for preparing the liquid developer by mixing a dispersion of the pigment or dye constituent in a solution of the copolymer binder in the carrier liquid with a solution of the charge controller in the carrier liquid.
REFERENCES:
patent: 3909433 (1975-09-01), Gilliams et al.
patent: 3915874 (1975-10-01), Machida et al.
patent: 3993483 (1976-11-01), Maki et al.
patent: 4081391 (1978-03-01), Tsubuko et al.
patent: 4206064 (1980-06-01), Kiuchi et al.
Herrmann Heinz
Schlosser Hans-Joachim
Goodrow John L.
Hoechst Aktiengesellschaft
Kittle John E.
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