| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is excellent in electrical characteristics, such as electrostatic chargeability, sensitivity, and responsibility, is excellent in oxidative gas resistance, such as ozone resistance and nitrogen oxide resistance, and is excellent in electrical durability to obviate the degradation in the good electrical characteristics even in repetitive use. SOLUTION: The electrophotographic photoreceptor contains an amine compound expressed by general formula (1) in its photosensitive layer. In the formula, R<SP>1</SP>and R<SP>2</SP>represent alkyl groups, cycloalkyl groups, heterocycloalkyl groups or aralkyl groups which may respectively have substituents; R<SP>3</SP>and R<SP>4</SP>represent alkyl groups which may have alcoxycarbon groups as substituents or aralkyl groups which may have the substituents: (n) represents an integer of 1 or 2; X represents a hydrogen atom, halogen atom, hydroxyl group, alkyl group, alkoxy group, alkyl thio group, alkyl sulfonyl group, phenyl thio group, phenoxy group or -NR<SP>5</SP>R<SP>6</SP>(R<SP>5</SP>and R<SP>6</SP>are alkyl groups, allyl groups which may respectively have alkoxy group as substituents, or alkylene group which may have an oxygen atom, imino group or N-alkyl imino group among carbon atoms by bonding each other) when (n) is 1, and represents -O -, -S- or an alkylene group when (n) is 2. COPYRIGHT: (C)2006,JPO&NCIPI
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