Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1987-08-31
1989-12-12
Goodrow, John L.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 6466, G03G 510
Patent
active
048867209
ABSTRACT:
The present invention provides a photosensitive medium for electrophotography comprising a styryl compound represented by the following formula (I) or (II): ##STR1## wherein Ar.sub.1 is a substituted aryl group and Ar.sub.2, Ar.sub.3, Ar.sub.4 are each an aryl group which may have a substituent; ##STR2## wherein both Ar.sub.5 and Ar.sub.7 substituted aryl groups and Ar.sub.6 and Ar.sub.8 are each an aryl group which may have a substituent, and n is 0 or 1.
The use of the present compound inhibits the light fatigue of the photosensitive medium effectively and renders the medium repeatedly usable with a diminished surface potential reduction, reduced rise of residual potential; and lesser sensitivity variation, enabling the medium to exhibit stable electrophotographic characteristics and high sensitivity to afford sharp copy images.
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Goodrow John L.
Minolta Camera Kabushiki Kaisha
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