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    • 10. 发明公开
    • 단층형 전자사진 감광체
    • 单色型电子照相机
    • KR1020040011101A
    • 2004-02-05
    • KR1020020044502
    • 2002-07-27
    • 삼성전자주식회사
    • 이환구요코다사부로연경열김범준주혜리이남정
    • G03G5/05
    • G03G5/0605G03G5/0567G03G5/0607G03G5/0609G03G5/0614G03G5/062G03G5/064G03G5/0666G03G5/0668G03G5/0672
    • PURPOSE: Provided is a monolayer type electrophotographic photoreceptor, which is excellent in endurance to a liquid developer and inhibits the reduction of static potential, therefore an excellent image can be obtained and an electrical lifetime can be lengthened. CONSTITUTION: The electrophotographic photoreceptor comprises: a conductive support; a photosensitive layer containing a polyester resin having a biphenyl fluorene unit(formula 1) in a main chain as a binder resin and a phenol compound(formula 2) as an antioxidant, wherein the content of the antioxidant is 0.01-50wt% based on the total weight of charge transport material of the photosensitive layer. In the formula 1, hydrogen atoms on aromatics are not substituted or can be substituted by halogen atoms, C1-C20 aliphatic hydrocarbon, or C5-C8 cycloalkyl. In the formula 2, X1 and X2 are independently hydrogen and C1-C6 alkyl, Y1 and Y2 are independently hydrogen, methyl, or ethyl, and X3 is independently C1-C6 alkyl and etc.
    • 目的:提供一种单层型电子照相感光体,其对液体显影剂的耐久性优异并且抑制静电势的降低,因此可以获得优异的图像,并且可以延长电寿命。 构成:电子照相感光体包括:导电载体; 在作为粘合剂树脂的主链中含有具有联苯芴单元(式1)的聚酯树脂和作为抗氧化剂的酚化合物(式2)的感光层,其中抗氧化剂的含量为0.01-50重量%,基于 感光层的电荷输送材料的总重量。 在式1中,芳族化合物上的氢原子不被卤素原子,C 1 -C 20脂族烃或C 5 -C 8环烷基取代或被卤素原子取代。 在式2中,X 1和X 2独立地是氢和C 1 -C 6烷基,Y 1和Y 2独立地是氢,甲基或乙基,X 3独立地是C 1 -C 6烷基等。