| 摘要 |
<P>PROBLEM TO BE SOLVED: To produce a positive charge type single-layer electrophotographic photoreceptor including a 1, 3, 5-triazine derivative as an electron transport material. Ž<P>SOLUTION: The 1, 3, 5-triazine derivative is represented by general formula (1), wherein Ar<SP>1</SP>denotes optionally substituted phenyl, naphthyl or biphenylyl, Ar<SP>2</SP>to Ar<SP>4</SP>each independently denote H, optionally substituted phenyl, optionally substituted biphenylyl, optionally substituted pyridyl, optionally substituted bipyridyl, optionally substituted naphthyl or optionally substituted terphenylyl, when Ar<SP>2</SP>is H, Ar<SP>3</SP>and Ar<SP>4</SP>are not H, and when Ar<SP>3</SP>and Ar<SP>4</SP>are H, Ar<SP>2</SP>is not H. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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