Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1981-11-30
1983-08-23
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 76, 430900, 430 78, 430 58, G03G 506
Patent
active
044004559
ABSTRACT:
A layered electrophotographic photoconductor whose charge generation layer comprises a bisazo pigment selected from the group consisting of the bisazo pigments represented by the following general formula (1) and whose charge transport layer contains a charge transport material selected from the group consisting of the hydrazone compounds represented by the following general formula (2): ##STR1## wherein A represents --C.sub.6 H.sub.4 --Cl(o), --C.sub.6 H.sub.4 --Cl(m), --C.sub.6 H.sub.4 --Br(o), --C.sub.6 H.sub.4 --Br(m), --C.sub.6 H.sub.4 --F(o), --C.sub.6 H.sub.4 --F(m), --C.sub.6 H.sub.4 --F(p), or --C.sub.6 H.sub.4 --I(m); ##STR2## wherein R.sup.1 represents a methyl group, an ethyl group, a 2-hydroxyethyl group or a 2-chloroethyl group; R.sup.2 represents a methyl group, an ethyl group, a benzyl group or a phenyl group; and R.sup.3 represents hydrogen, chloride, bromide, an alkyl group with one to four carbon atoms, an alkoxy group with one to four carbon atoms, a dialkylamino group, or a nitro group.
REFERENCES:
patent: 4247614 (1981-01-01), Ohta et al.
patent: 4256821 (1981-03-01), Enomoto
Hashimoto Mitsuru
Kojima Akio
Ohta Katsunari
Sakai Kiyoshi
Ricoh & Company, Ltd.
Welsh John D.
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