Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1979-07-16
1981-04-21
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430107, 430108, 430109, 430110, 430120, G03G 900
Patent
active
042633893
ABSTRACT:
Disclosed is a positively charged toner composition comprised of a resin, a colorant and polymers of vinyl pyrrolidone of the formula: ##STR1## wherein x is a number of from about 20 to 1,800 and y is zero, or 1. A developer material is typically formulated by adding a carrier to the toner composition. Images of high quality are obtained when using these developers in an electrophotographic imaging system. The polymers of vinyl pyrrolidone are also useful as dispersants.
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Brownrout H. M.
Downey Mary F.
Kondo P. H.
Palazzo E. O.
Xerox Corporation
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