Trisazo electrophotographic photosensitive material

Details Trisazo electrophotographic photosensitive material Trisazo electrophotographic photosensitive material

1982-09-21

1984-02-21

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 72, 430 73, 430 75, 430 76, 430 78, 430 79, 260152, 260164, 260165, 260169, G03G 506

Patent

active

044330391

ABSTRACT:
Disclosed is an electrophotographic photosensitive material comprising a photosensitive layer containing a tris-azo pigment represented by the following formula: ##STR1## wherein the ring A.sub.1 and A.sub.2 may have a halogen atom, an alkyl group or alkoxy group as a substituent at the ortho-position to the azo group, Z stands for a benzene ring, naphthalene ring, indole ring, carbazole ring or benzofuran ring fused to the benzene ring B, and R stands for an unsubstituted or substituted phenyl, naphthyl or heterocyclic group.
This photosensitive material has a high sensitivity to rays in a broad wavelength region and is excellent in the resistance in the printing operation.

REFERENCES:
patent: 1785845 (1930-12-01), Stuesser
patent: 1913382 (1933-06-01), Gubelmann et al.
patent: 2203196 (1940-06-01), Hanhart
patent: 2286714 (1942-06-01), Chechak
patent: 4169831 (1979-10-01), Frank et al.
patent: 4279981 (1981-07-01), Ohta et al.
patent: 4359398 (1982-11-01), Cole et al.

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