Electrophotographic element with carbazole-phenyhydrazone charge

Details Electrophotographic element with carbazole-phenyhydrazone charge Electrophotographic element with carbazole-phenyhydrazone charge

1979-12-12

1981-03-17

Martin, Jr., Roland E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 58, 430 79, 260160, 260174, 260315, G03G 506, G03G 514

Patent

active

042568218

ABSTRACT:
The present invention provides a layered electrophotographic element which comprises an electroconductive support on which there is a charge generating layer and a charge transfer layer in order, said charge generating layer being consisted essentially of a charge generating agent expressed by the general formula I ##STR1## [wherein A represents ##STR2## (wherein X is selected from the group consisting of benzene ring, naphthalene ring, indole ring, carbazole ring, benzofuran ring and substitutes thereof, Ar.sub.1 is selected from the group consisting of benzene ring, naphthalene ring, dibenzofuran ring, carbazole ring and substitutes thereof, Ar.sub.2 and Ar.sub.3 are selected from the group consisting of benzene ring, naphthalene ring and substitutes thereof, R.sub.1 and R.sub.3 are selected from the group consisting of hydrogen, lower alkyl group, phenyl group and substitutes thereof and R.sub.2 is selected from the group consisting of lower alkyl group, carboxyl group and alkyl esters thereof)], said charge transfer layer being consisted essentially of a charge transfer agent expressed by the general formula II ##STR3## (wherein R.sub.1 represents methyl, ethyl, 2-hydroxyethyl or 2-chloroethyl group and R.sub.2 represents methyl, ethyl, benzyl or phenyl group) and polycarbonate.

REFERENCES:
patent: 3884691 (1975-05-01), Rolhlitz
patent: 3977870 (1976-08-01), Rolhlitz
patent: 4134761 (1979-01-01), Okazaki et al.
patent: 4150987 (1979-04-01), Anderson et al.
patent: 4192677 (1980-03-01), Okazaki et al.

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