G - Physics – 03 – G
Patent
G - Physics
03
G
96/151, 96/174
G03G 5/07 (2006.01) G03G 5/06 (2006.01)
Patent
CA 1127900
S P E C I F I C A T I O N To ALL WHOM IS MAY CONCERN: BE IT KNOWN THAT we, Toru Nakazawa, Keiichi Nagahashi and Tatsuo Aizawa, residing at 10-10, 3-Chome, Ikuno Higashi, Ikuno-ku, Osaka-shi, Osaka-fu, Japan, 212-3, Hashimoto, Kaizuka-shi, Osaka-fu, Japan and 6-34, Kuwazu-cho, Higashi-Sumiyoshi-ku, Osaka-shi, Osaka-fu, Japan, respectively, have invented certain new and useful improvements in: "PHOTOCONDUCTIVE COMPOSITION FOR ELECTROPHOTOGRAPHY ", of which the following is specification. Abstract of the Disclosure A photoconductive composition suitable for forma- tion of a photosensitive material to be applied to the electrophotographic process in which a photosensitive material is used repeatedly is disclosed. This photoconductive composition comprises an electron- donating organic polymeric conductor, an electron- accepting aromatic polycyclic nitro compound in an amount of 0.15 to 0.45 mole per mole of the constituent monomer of the organic polymeric photoconductor and phthalo- cyanine or its derivative in an amount of 0.2 to 4 % by weight based on the organic polymeric photoconductor. A photosensitive material formed by using this photo- conductive composition is characterized by high satura- tion charge voltage, high sensitivity and much reduced residual potential, and it is excellent in mechanical, chemical and electric durabilities and a great number - 1 - of clear and sharp prints having a high density and being free from fogging can be obtained when this photosensitive material is used repeatedly for the electrophotographic operation. - 1' -
308088
Aizawa Tatsuo
Nagahashi Keiichi
Nakazawa Toru
Mita Industrial Company Limited
Smart & Biggar
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