Organic photoconductive material for electrophotography and meth

Details Organic photoconductive material for electrophotography and meth Organic photoconductive material for electrophotography and meth

1991-07-25

1994-07-12

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 58, 430 78, 430135, G03G 5047

Patent

active

053287886

ABSTRACT:
A method for making photosensitive materials of the positive charge type which are useful in electrophotography is described. In the method, X-type and/or .tau.-type phthalocyanine is at least partially dissolved in a solvent along with a resin binder or in a solution of the resin binder by which good photosensitive characteristics are obtained. The photosensitive material obtained by the method may be of a single-layer or a double-layer type. A photosensitive material having an improved ozone resistance is also disclosed. The material makes use of a resin binder having vinylphenol units therein.

REFERENCES:
patent: 3357989 (1967-12-01), Byrne et al.
patent: 4933248 (1990-06-01), Lind et al.
patent: 5087540 (1992-02-01), Murakami et al.
Masafumi Ota, "Bathochromic Shifts of Azo-Pigments as Electrophotographic Photoconditions", Ricoh Technical Report No. 8, Nov. 1982, pp. 14-18.

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