Electrophotographic photosensitive material

Details Electrophotographic photosensitive material Electrophotographic photosensitive material

1983-04-12

1984-10-30

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 57, 430 70, 430 75, 430 76, 430 78, G03G 502, G03G 505, G03G 506

Patent

active

044800193

ABSTRACT:
Disclosed is a photosensitive material for electrophotography, which comprises a photosensitive layer containing a disazo pigment represented by the following formula: ##STR1## wherein R.sub.1 stands for a lower alkyl group or a lower alkoxy group, n is a number of zero, 1 or 2, R.sub.2 stands for a lower alkyl group, a lower alkoxy group, a di-lower-alkylamino group, a nitro group or a halogen atom, m is a number of zero, 1 or 2, Z stands for a benzene ring or a naphthalene ring, and Y stands for a group represented by the following formula: ##STR2## in which B stands for a benzene, naphthalene, indole, carbazole or benzofuran ring or a substitution product thereof, which is fused to the benzene ring, Ar.sub.1 and Ar.sub.2 stand for a benzene ring, a naphthalene ring, a dibenzofuran ring or a substitution product thereof, R.sub.3 stands for a lower alkyl group, a carboxyl group or a carboxyl ester group, and R.sub.4 stands for a hydrogen atom, a lower alkyl group, a phenyl group or a substituted phenyl group.

REFERENCES:
patent: 3898084 (1975-08-01), Champ et al.
patent: 4123270 (1978-10-01), Heil et al.

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