Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1979-03-12
1981-05-26
Kimlin, Edward C.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430110, 430120, G03G 1316
Patent
active
042699223
ABSTRACT:
Disclosed are positive toners comprised of a toner resin, pigment or colorant, and as a charge inducing material, long chain hydrazinium compounds of the following formula: ##STR1## wherein R.sub.1 is a hydrocarbon radical containing from about 8 to about 22 carbon atoms, R.sub.2 and R.sub.3 are independently selected from hydrogen groups or hydrocarbon radicals containing from about 1 to about 22 carbon atoms and A is an anion which in a preferred embodiment is selected from halides such as chloride, bromide, iodide, sulfate, sulphonate, phosphate, and nitrate. These toners, together with carrier materials can be used to develop images in electrophotographic systems.
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Erhardt Peter F.
Lu Chin H.
Brownrout H. M.
Goodrow John L.
Kimlin Edward C.
Mahassel A. A.
Palazzo E. O.
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