Electrophotographic organic photosensitive material with dipheno

Details Electrophotographic organic photosensitive material with dipheno Electrophotographic organic photosensitive material with dipheno

1992-03-26

1994-06-28

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 58, 430 59, G03G 509

Patent

active

053246101

ABSTRACT:
The organic photosensitive material for electrophotography in accordance with this invention is characterized in that a non-symmetrically substituted diphenoquinone derivative represented by the following formulae ##STR1## wherein each of R.sub.1 and R.sub.2 represents an alkyl or aryl group, R.sub.2 having larger carbon atoms than R.sub.1, is used as an electron transporting agent. This photosensitive material has a residual potential limited to a low level, and shows excellent sensitivity in both positive charging and negative charging.

REFERENCES:
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patent: 4302521 (1981-11-01), Takei et al.
patent: 5166016 (1992-11-01), Badesha et al.
patent: 5168026 (1992-12-01), Miyamoto
patent: 5213923 (1993-05-01), Yokoyama et al.
Database WPIL, Week 9201, Derwent Publications Ltd., London, GB; AN 92-003115 (01) & JP-A-3 256 050 (Mita Ind KK) Nov. 14, 1991.
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Database WPIL, Week 9108, Derwent Publications Ltd., London, GB; AN91-053477 (08) & JP-A-2 300 759 (Canon KK) Dec. 12, 1990.

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