Complex type electrophotographic plate

Details Complex type electrophotographic plate Complex type electrophotographic plate

1981-02-09

1982-08-24

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 59, 430900, 252500, G03G 509

Patent

active

043461573

ABSTRACT:
A complex type electrophotographic plate comprises a conductive support; a first layer, adhered to the support, of a charge generating material, said first layer having a thickness of 0.1 to 5 .mu.m; and a second layer, superposed on the first layer, of a homogeneous mixture of a charge transport material and an insulating, resinous binder therefor, said second layer having a thickness of 5 to 100 .mu.m and being substantially transparent to light of a wave length of 4200 to 8000 A; wherein said charge transport material is at least one member selected from the class consisting of nonionic compounds represented by the general formula: X--(CH.dbd.CH).sub.n Ar where X is a heterocyclic group selected from the group consisting of ##STR1## and Y is O or S, R is a lower alkyl group; the hetero ring may be substituted; n is an integer of 0, 1 or 2; and Ar is an aryl or substituted aryl group.
The electrophotographic plate has a high light sensitivity and can be used in more than 10.sup.3 repetitions without fatigue.

REFERENCES:
patent: 4245021 (1981-01-01), Kazami et al.
patent: 4278746 (1981-07-01), Goto et al.

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