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11. 发明授权

US5449572A Electrophotographic photoreceptor having high mechanical durability 失效
标题翻译：具有高机械耐久性的电子照相感光体
公开(公告)号：US5449572A
公开(公告)日：1995-09-12
申请号：US178133
申请日：1994-01-06
申请人： Seiji Ashiya , Masaru Miura
发明人： Seiji Ashiya , Masaru Miura
IPC分类号： C08G64/08 , C08G64/00 , C08L69/00 , G03G5/05 , G03G5/147 , G03G5/087
CPC分类号： G03G5/0564
摘要： An electrophotographic photoreceptor comprising a conductive substrate having thereon a photosensitive layer is disclosed, said photosensitive layer containing, as a binder resin, a polycarbonate resin comprising at least a repeating unit represented by formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represent a hydrogen atom, a halogen atom, an alkyl group having from 1 to 5 carbon atoms, a cycloalkyl group having from 5 to 7 carbon atoms or a phenyl group; and R.sub.5 and R.sub.6 are taken together to form a 5- to 8-membered carbonaceous ring substituted with at least two alkyl groups each having from 1 to 5 carbon atoms. The photoreceptor has high mechanical durability and satisfactory surface smoothness, resistance against reduction in image quality and sensitivity, and stability against environmental change and repeated use.
摘要翻译：公开了一种包含其上具有感光层的导电基片的电子照相感光体，所述感光层含有至少包含由式（I）表示的重复单元的聚碳酸酯树脂：其中R1， R2，R3和R4各自表示氢原子，卤素原子，具有1至5个碳原子的烷基，具有5至7个碳原子的环烷基或苯基; 并且R5和R6一起形成被至少两个各自具有1至5个碳原子的烷基取代的5-至8-元碳环。感光体具有高的机械耐久性和令人满意的表面光滑度，抗降低图像质量和灵敏度，以及对环境变化和重复使用的稳定性。

12. 发明授权

US5252422A Method for preparing an electrophotographic photoreceptor 失效
标题翻译：电子照相感光体的制备方法
公开(公告)号：US5252422A
公开(公告)日：1993-10-12
申请号：US829618
申请日：1992-01-31
申请人： Sadao Okano , Takahiro Suzuki , Masanori Murase , Koji Bando , Seiji Ashiya
发明人： Sadao Okano , Takahiro Suzuki , Masanori Murase , Koji Bando , Seiji Ashiya
IPC分类号： G03G5/14
CPC分类号： G03G5/142
摘要： A novel method for preparing an electrophotographic photoreceptor is disclosed, which comprises laminating a charge generating layer and a charge transporting layer in this order on an electrically conductive substrate via an undercoating layer, wherein the coating solution for said undercoating layer contains an alkoxide coupling agent represented by formula (I), an aliphatic alcohol solvent containing at least the same number of carbon atoms as in the alkoxy group in said alkoxide coupling agent, and at least one compound selected from the group consisting of aromatic solvents, ethylene glycols and propylene glycols:X.sub.m --m--(OR.sub.1).sub.N (I)wherein R.sub.1 represents an alkyl group having 1 to 5 carbon atoms; M represents Si, Ti, Zr or Al; X represents an organic group; m represents an integer of 0, 1 or 2; and n represents an integer of 1 to 4, provided that when M is Si, Ti or Zr, n is an integer of 1 to 4 and m is an integer of (4-n) and when M is Al, n is an integer of 1 to 3 and m is an integer of (3-n).
摘要翻译：公开了一种用于制备电子照相感光体的新方法，其包括依次层叠电荷产生层和电荷输送层，其中所述底涂层的涂布溶液含有表示为烷氧基的偶联剂通式（I）表示的烷氧基化合物中含有至少相同数目的碳原子的脂族醇溶剂和选自芳族溶剂，乙二醇和丙二醇中的至少一种化合物： Xm-m-（OR1）N（I）其中R1表示具有1至5个碳原子的烷基; M表示Si，Ti，Zr或Al; X表示有机基团; m表示0,1或2的整数; n表示1〜4的整数，条件是当M为Si，Ti或Zr时，n为1〜4的整数，m为（4-n）的整数，当M为Al时，n为整数为1〜3，m为（3-n）的整数。

13. 发明授权

US5130218A Electrophotographic photoreceptor providing a stable high charge ability and low dark decay coefficient 失效
标题翻译：电子照相感光体提供稳定的高电荷能力和较低的暗衰变系数
公开(公告)号：US5130218A
公开(公告)日：1992-07-14
申请号：US554185
申请日：1990-07-20
申请人： Motoko Yokokawa , Seiji Ashiya
发明人： Motoko Yokokawa , Seiji Ashiya
IPC分类号： G03G5/06
CPC分类号： G03G5/06
摘要： An electrophotographic photoreceptor which employs a photosensitive layer including a binder resin and an organic pigment as a charge generating material which has been subjected to an acid pasting treatment. The sulfur content of the organic pigment is maintained at 500 ppm or less to achieve a stable high chargeability and low dark decay coefficient.
摘要翻译：一种电子照相感光体，其使用包含粘合剂树脂和有机颜料的感光层作为经过酸性粘贴处理的电荷产生材料。有机颜料的硫含量保持在500ppm以下，以实现稳定的高带电性和低的暗衰变系数。

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