Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1995-09-13
1997-04-01
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
544246, G03G 506
Patent
active
056164416
ABSTRACT:
According to the present invention, there is provided a novel tryptoanthorine derivative represented by the formula: ##STR1## wherein R.sup.1a, R.sup.1b, R.sup.1c, R.sup.1d, R.sup.2a, R.sup.2b, R.sup.2c, and R.sup.2d are the same or different and indicate a hydrogen atom, an alkyl group or a halogenated alkyl group; provided that R.sup.1a, R.sup.1b, R.sub.1c and R.sup.1d do not indicate a hydrogen atom, simultaneously. Tryptoanthorine and a derivative thereof are suitably used for an electrophotosensitive material because of their excellent electron transferring capability.
REFERENCES:
patent: 5116706 (1992-05-01), Kojima et al.
patent: 5420259 (1995-05-01), Guentner et al.
Chemical Abstracts 121:241714.
Borsenberger, Paul M. & Paul S. Weiss. Organic Photoreceptors for Imaging Systems. New York: Marcel-Dekker, Inc. pp. 190-211.
Bergman, et al., Tetrahedron Letters, No. 30, pp. 2625-2626, 1977.
WO-A-95/13807, May 26, 1995.
Database Beilstein Online (no date), Beilstein Registry #257325
European Search Report, Feb. 9, 1996.
Akiba Nobuko
Fukami Toshiyuki
Kawaguchi Hirofumi
Matsumoto Syunichi
Mizuta Yasufumi
Mita Industrial Co. Ltd.
Rodee Christopher D.
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