Electrophotographic photoreceptor containing an azo compound and

Details Electrophotographic photoreceptor containing an azo compound and Electrophotographic photoreceptor containing an azo compound and

1990-05-15

1991-10-01

Welsh, David

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 78, 430 59, 430 70, 430 79, G03G 506

Patent

active

050533029

ABSTRACT:
A novel electrophotographic photoreceptor is provided comprising on an electrically conductive support a layer containing a charge-transporting compound and a charge-generating compound or a charge-transporting compound-containing layer and a charge-generating compound-containing layer, characterized in that as said electric charge-generating compound there is contained an azo compound containing an organic residue represented by general formula (1): ##STR1## wherein Ar.sup.2 represents a divalent aromatic hydrocarbon or aromatic heterocyclic group; Ar.sup.3 represents an aromatic hydrocarbon group or aromatic heterocyclic group; and Q represents a hydrogen atom, halogen atom, alkyl group, trifluoromethyl group, nitro group, cyano group or alkoxy group. In a preferred embodiment, the azo compound is represented by the general formula (2): ##STR2## wherein Ar.sup.1 represents an aromatic hydrocarbon group or aromatic heterocyclic group which may be connected thereto via a connecting group; Ar.sup.2 and Ar.sup.3 are as defined in the general formula (1); and n represents an integer 1 to 4.

REFERENCES:
patent: 4731315 (1988-03-01), Horie et al.
patent: 4743523 (1988-05-01), Yamashita et al.

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