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
1981-08-25
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430109, 430110, 430904, 428407, G03G 914
Patent
active
042860385
ABSTRACT:
Disclosed are positive toners comprised of a toner resin, a colorant, or pigment, and an alkyl picolinium compound selected from the group consisting of those represented by the following formula: ##STR1## wherein A is an anion which in a preferred embodiment is a halide such as chloride, bromide, or iodide, sulphate, sulphonate, phosphate and nitrate, and R is a hydrocarbon radical containing from 8 to 22 carbon atoms and preferably from about 12 to 18 carbon atoms. These toners when combined with carrier materials can be used as developers in electrophotographic systems.
REFERENCES:
patent: 3844966 (1974-10-01), Nelson
patent: 3893935 (1975-07-01), Jadwin et al.
patent: 3944493 (1976-03-01), Jadwin et al.
patent: 3970571 (1976-07-01), Olson et al.
patent: 4079014 (1978-03-01), Burness et al.
Erhardt Peter F.
Lu Chin H.
Brownrout H. M.
Mohassel A. A.
Palazzo E. O.
Welsh John D.
Xerox Corporation
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