Multilayer electrophotographic element containing a trisazo char

Details Multilayer electrophotographic element containing a trisazo char Multilayer electrophotographic element containing a trisazo char

1982-05-21

1984-03-27

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 73, 430 75, 430 76, 260169, G03G 506

Patent

active

044395060

ABSTRACT:
An electrophotographic element comprising an electrically conductive substrate, a charge carrier generating layer and a charge transfer layer superimposed on said substrate, wherein said charge carrier generating layer contains a trisazo compound having the general formula (I): ##STR1## (wherein, Ar represents ##STR2## and said charge transfer layer contains a charge transfer substance having the general formula (II) or (III): ##STR3## (wherein, R.sup.1 represents a hydrogen or halogen atom, R.sup.2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, a dialkylamino group, or a substituted or non-substituted diaralkylamino group, and R.sup.3 represents hydrogen, an alkyl group or a halogen atom.) ##STR4## (wherein, R.sup.4 represents a carbazolyl group, a pyridyl group, a thienyl group, an indolyl group, a furyl group or a substituted or non-substituted phenyl, styryl, naphthyl or anthryl group, said substituent being one selected from the group consisting of dialkylamino, alkyl, alkoxyl, halogen atom, aralkylamino, N-alkyl-N-aralkylamino and amino groups.)
and a binder.

REFERENCES:
patent: 4279981 (1981-07-01), Ohta et al.
patent: 4314016 (1982-02-01), Ohta et al.

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