Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2007-02-27
2007-02-27
McKane, Joseph K. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
Reexamination Certificate
active
10681163
ABSTRACT:
A method for preparing three types of benzidine compounds in a specific ratio, the method uses two types of diphenylamine compounds and one type of biphenyldihalide compound in a specific ratio as reactants to mix with an organic solvent and an additive to synthesize benzidine compounds in one step. The synthesized three types of benzidine compounds specially perform in a designated mixturing ratio having excellent photoelectric characteristics for a charge transporting layer in an organic photo-conductive drum.
REFERENCES:
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patent: 5929281 (1999-07-01), Nishiyama et al.
patent: 62-267749 (1987-11-01), None
Chang Yuan-Szu
Huang Po-Han
Jang Shyue-Ming
Jeng Charng-Lih
Juang Chyuan
Chu Yong
Labeltek Inc.
McKane Joseph K.
Taiwan Salt Industrial Corporation
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