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    SCRATCH-RESISTANT AND DURABLE ELECTROPHOTOGRAPHIC PHOTORECEPTOR
    1.
    发明公开
    SCRATCH-RESISTANT AND DURABLE ELECTROPHOTOGRAPHIC PHOTORECEPTOR 审中-公开

    公开(公告)号：US20230367235A1

    公开(公告)日：2023-11-16

    申请号：US18315471

    申请日：2023-05-10

    Applicant: Nano and Advanced Materials Institute Limited

    Inventor： Yong ZHU ,  Yubo CHENG ,  Shiwei QIN ,  Chenmin LIU

    IPC: G03G5/05 ,  G03G5/147

    CPC classification number: G03G5/0592 ,  G03G5/14752 ,  G03G5/14756

    Abstract: The present invention relates to an electrophotographic photoreceptor, which includes a conductive substrate; an undercoat layer disposed on the conductive substrate and capable of conforming to the contour of the conductive substrate, a photoconductor charge generation layer disposed on the undercoat layer and capable of conforming to the contour of the undercoat layer, and a charge transport layer disposed on the photoconductor charge generation layer. The charge transport layer contains a charge transport material, a binder resin, a fluorine-containing resin, and a plurality of polyhedral oligomeric silsesquioxane (POSS) particles evenly dispersed in the binder resin, and the POSS particles are interconnected with at least one fluorine group and at least two non-fluoridated groups. By adding approximately 1% of the POSS particles and lubricant nanoparticles, a life-time improvement of at least 20% is achieved for an OPC drum.

    ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    4.
    发明申请
    ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20170090310A1

    公开(公告)日：2017-03-30

    申请号：US15048363

    申请日：2016-02-19

    Applicant: FUJI XEROX CO., LTD.

    Inventor： Hideya KATSUHARA ,  Takashi IMAI ,  Takeshi IWANAGA ,  Masaki HIRAKATA ,  Tatsuki SANO

    IPC: G03G15/00

    CPC classification number: G03G5/0564 ,  G03G5/0433 ,  G03G5/0436 ,  G03G5/0507 ,  G03G5/087 ,  G03G5/14704 ,  G03G5/14756

    Abstract: An electrophotographic photoreceptor includes an electroconductive substrate, a photosensitive layer provided on the electroconductive substrate, and an inorganic surface layer provided on the photosensitive layer, wherein a layer constituting an outermost surface of the photosensitive layer contains from 30% by weight to 70% by weight of silica particles and contains a biphenyl copolymerization type polycarbonate resin including a structural unit represented by the formula (PCA) and a structural unit represented by the formula (PCB) at a copolymerization ratio (PCA:PCB (molar ratio)) of 10:90 to 50:50: wherein, RP1, RP2, RP3, and RP4 each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms, or an aryl group having 6 to 12 carbon atoms, and XP1 represents a phenylene group, a biphenylene group, a naphthylene group, an alkylene group, or a cycloalkylene group.

    Electrophotographic photoreceptor and resin composition
    5.
    发明授权
    Electrophotographic photoreceptor and resin composition 有权
    电子照相感光体和树​​脂组合物

    公开(公告)号：US09494883B2

    公开(公告)日：2016-11-15

    申请号：US14001419

    申请日：2012-03-13

    Applicant: Hironobu Morishita ,  Takaaki Hikosaka

    Inventor： Hironobu Morishita ,  Takaaki Hikosaka

    IPC: G03G15/00 ,  G03G15/04 ,  G03G5/07 ,  C08L69/00 ,  G03G5/05 ,  G03G5/147

    CPC classification number: G03G5/076 ,  C08L69/00 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/14752 ,  G03G5/14756

    Abstract: An electrophotographic photoreceptor that satisfies excellent transparency, abrasion resistance, and electrophotographic properties (including sensitivity and residual potential after light irradiation) all together is provided. Specifically, an electrophotographic photoreceptor and a resin composition that include therein (1) a polycarbonate resin (A) having a structural unit represented by the following formula (I) and (2) at least one selected from a polycarbonate resin (B) synthesized from a source material that includes therein a bisphenol represented by the following formula (II) and a polyester resin (B′) synthesized from a source material that includes therein a bisphenol represented by the following formula (II). In formulas (I) and (II), each of Ra, Rb, Rc, Rd, Re, and Rf represents, independently from one another, a substituted or non-substituted alkyl group, a substituted or non-substituted cycloalkyl group, or a substituted or non-substituted phenyl group. Each of p, q, r, s, t, and u represents, independently from one another, an integer of 0 to 4. Rg represents an alkyl group. X represents an alkylene group, an isopropylidene group, a sec-butylidene group, a cycloalkylene group, a cycloalkylidene group, or the like. Y represents a single bond or —O—. Each of mA and nA represents a composition ratio (mole ratio) of the structural unit in the round brackets.

    Imaging member having improved imaging layers
    8.
    发明授权
    Imaging member having improved imaging layers 有权
    具有改进的成像层的成像构件

    公开(公告)号：US09141006B2

    公开(公告)日：2015-09-22

    申请号：US14056820

    申请日：2013-10-17

    Applicant: XEROX CORPORATION

    Inventor： Jin Wu

    IPC: G03G5/05 ,  G03G15/00

    CPC classification number: G03G5/0564 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/14756 ,  G03G15/75 ,  G03G15/751

    Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member having imaging layers that exhibit improved electrical performance. In these embodiments, both the charge generation layer and charge transport layer comprise a tetra-aryl polycarbonate copolymer.

    Abstract translation: 目前公开的实施例涉及用于静电放电的电荷传输层。 更具体地，实施例涉及具有显示改进的电气性能的成像层的静电摄影成像构件。 在这些实施方案中，电荷产生层和电荷输送层都包含四芳基聚碳酸酯共聚物。

    METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ORGANIC DEVICE, AND EMULSION FOR CHARGE TRANSPORTING LAYER
    10.
    发明申请
    METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ORGANIC DEVICE, AND EMULSION FOR CHARGE TRANSPORTING LAYER 有权
    生产电子感光成员的方法，生产有机装置的方法和用于充电运输层的乳液

    公开(公告)号：US20140315124A1

    公开(公告)日：2014-10-23

    申请号：US14353463

    申请日：2012-12-11

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Atsushi Okuda ,  Keiko Yamagishi ,  Harunobu Ogaki ,  Yohei Miyauchi ,  Hiroki Uematsu ,  Kimihiro Yoshimura

    IPC: G03G5/04

    CPC classification number: G03G5/04 ,  G03G5/0525 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/14708 ,  G03G5/14756 ,  H05B33/10

    Abstract: Provided are a method of producing an electrophotographic photosensitive member, particularly, a method of producing an electrophotographic photosensitive member and an organic device by which, in a method of forming a charge transporting layer, the stability of an application liquid for the layer after long-term storage is improved while the usage of an organic solvent in the application liquid is curtailed, and the layer having high uniformity is formed. The method is a method of producing an electrophotographic photosensitive member which includes a support and a charge transporting layer formed thereon, the method including: preparing a solution including: a first liquid whose solubility in water under 25° C. and 1 atmosphere is 1.0 mass % or less; a second liquid whose solubility in water under 25° C. and 1 atmosphere is 5.0 mass % or more; a charge transporting substance; and a binder resin; preparing an emulsion by dispersing the solution in water; forming a coat for the layer on the support by using the emulsion; and forming the layer by heating of the coat.

    Abstract translation: 提供了一种制造电子照相感光构件的方法，特别是制造电子照相感光构件和有机装置的方法，其中在形成电荷输送层的方法中，长期使用该层的涂层液的稳定性， 在使用液体中的有机溶剂的使用减少的同时改善了长期储存，形成了均匀性高的层。 该方法是一种制造电子照相感光构件的方法，该电子照相感光构件包括支撑体和形成在其上的电荷输送层，该方法包括：制备溶液，其包括：在25℃和1个大气压下在水中的溶解度为1.0质量％ ％ 或更少; 在25℃，1个大气压下在水中的溶解度为5.0质量％以上的第二液体; 电荷输送物质; 和粘合剂树脂; 通过将溶液分散在水中制备乳液; 通过使用乳液在载体上形成涂层; 并通过加热涂层形成层。

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