Electrophotographic medium with heterocyclic azo photoconductor

Details Electrophotographic medium with heterocyclic azo photoconductor Electrophotographic medium with heterocyclic azo photoconductor

1982-03-16

1983-08-02

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 58, 430 76, 430 77, G03G 506, G03G 514

Patent

active

043966950

ABSTRACT:
An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein the charge carrier-producing dyes are those of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, halogen, alkyl, nitro or cyano, R.sup.4 is phenyl, halophenyl, alkylphenyl, nitrophenyl or dialkylaminophenyl, and X is oxygen, sulfur, NH or N-phenyl, and the production of this recording medium.

REFERENCES:
patent: 3839034 (1974-10-01), Wieodendek
patent: 3973959 (1976-08-01), Rochlitz et al.
patent: 4099970 (1978-07-01), Okazaki et al.
patent: 4251613 (1981-02-01), Sasaki et al.

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