| 摘要 |
<p>LAYERED ELECTROPHOTOGRAPHIC ELEMENT 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 ¢wherein A represents , or (wherein X is selected from the group consisting of benzene ring, naphthalene ring, indole ring, carbazole ring, benzofuran ring and substitutes thereof, Ar1 is selected from the group consisting of benzene ring, naphthalene ring, dibenzofuran ring, carbazole ring and substitutes thereof, Ar2 and Ar3 are selected from the group consisting of benzene ring, naphthalene ring and substitutes thereof, R1 and R3 are selected from the group consisting of hydrogen, lower alkyl group, phenyl group and substitutes thereof and R2 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 (wherein R1 represents methyl, ethyl, 2-hydroxyethyl or 2-chloroethyl group and R2 represents methyl, ethyl, benzyl or phenyl group) and polycarbonate.</p> |
