Photosensitive element for electrophotography

Details Photosensitive element for electrophotography Photosensitive element for electrophotography

1991-01-08

1993-06-01

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 73, 355211, G03G 506

Patent

active

052158420

ABSTRACT:
A photosensitive element for electrophotography has an electrically conductive substrate and a layer structure thereon comprising a charge generating substance and a charge transport substance. An improved charge transport substance is a derivative of triphenylamine in which at least 80% of the electrons in the highest occupied molecular orbital are located on the triphenylamine skeleton. Examples of such compounds have the following formula: ##STR1## wherein X is a an optionally substituted heterocyclic radical containing at least one ring nitrogen, Q is a single bond or --C.dbd.C--, and Z.sub.1, Z.sub.2 and Z.sub.3 are H, lower alkyl or alkoxy, aryl, NO.sub.2, CF.sub.3, --N(R').sub.2, --S--C.sub.6 H.sub.5 or --S(R').sub.2.

REFERENCES:
patent: 3837851 (1974-09-01), Shattuck et al.
patent: 3871882 (1975-03-01), Wiedemann
patent: 4708922 (1987-11-01), Yokoya et al.
patent: 4970131 (1990-11-01), Taniguchi et al.

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