Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1980-06-26
1981-10-27
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 59, G03G 504, G03G 514
Patent
active
042974259
ABSTRACT:
An imaging member comprising a hole generation layer and a contiguous hole transport layer, said hole transport layer comprising a transparent electrically inactive polycarbonate resinous material having a residual amount of a halogen containing organic solvent therein and dispersed therein from about 25 to about 75 percent by weight based on said transport layer composition of a diamine, said charge transport layer being substantially nonabsorbing in the spectral region at which the hole generation layer generates and injects photogenerated holes, but being capable of supporting the injection of photogenerated holes from said photoconductive material and transporting said hole through said charge transport layer, said charge transport layer also containing a stabilizing proportion of a di or triaryl methane compound of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of a C.sub.1 -C.sub.8 alkyl, aryl, alkaryl and aralkyl, where said aryl is a phenyl group or a condensed ring group, where the alkyl group of said alkaryl and aralkyl is a C.sub.1 -C.sub.4 group, R.sub.3 is independently selected from the group consisting of hydrogen and CH.sub.3 ; and R.sub.4 is the same as R.sub.1 and R.sub.2 or a disubstituted aminophenyl group wherein the substituents are independently selected from the group consisting of a C.sub.1 -C.sub.8 alkyl, aryl, alkaryl and aralkyl as defined supra.
REFERENCES:
patent: 4078925 (1978-03-01), Horgan
patent: 4081274 (1978-03-01), Horgan
Research Disclosure, "Multi-active Photoconductive Element" May 1975, 13312, pp. 38-43.
Pai Damodar M.
Pochan Darlyn F.
Pochan John M.
Beck John E.
Downey Mary F.
Kondo Peter H.
O'Sullivan James P.
Xerox Corporation
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