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    Photoreceptor, method for preparing photoreceptor, and image forming apparatus and process cartridge using the photoreceptor
    4.
    发明授权
    Photoreceptor, method for preparing photoreceptor, and image forming apparatus and process cartridge using the photoreceptor 有权
    光感受器，制备感光体的方法，以及使用感光体的成像设备和处理盒

    公开(公告)号：US09146483B2

    公开(公告)日：2015-09-29

    申请号：US13771461

    申请日：2013-02-20

    Applicant: Mitsuaki Hirose ,  Akihiro Sugino ,  Noboru Toriu ,  Keisuke Shimoyama ,  Tomoharu Asano

    Inventor： Mitsuaki Hirose ,  Akihiro Sugino ,  Noboru Toriu ,  Keisuke Shimoyama ,  Tomoharu Asano

    IPC: G03G5/047 ,  G03G5/147 ,  G03G15/00 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07

    CPC classification number: G03G5/14708 ,  G03G5/0546 ,  G03G5/0631 ,  G03G5/075 ,  G03G5/076 ,  G03G5/14734 ,  G03G5/14752 ,  G03G5/14791 ,  G03G15/75 ,  G03G2215/00957

    Abstract: In a photoreceptor including an electroconductive substrate; a photosensitive layer; and a protective layer, the protective layer includes a crosslinked resin having a residual group of a polycarboxylic acid compound and a group having the below-mentioned formula (10), and at least one of a compound having the below-mentioned formula (2) and a compound having the below-mentioned formula (3). wherein each of R5 and R6 independently represents a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms. wherein each of R7 and R8 independently represents a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, and Z1 represents a vinylene group, a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, or a 2,5-thiophenediyl group. wherein each of Ar1 and Ar2 independently represents an aromatic group having 6 to 14 carbon atoms, Z2 represents a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, and each of R9 and R10 independently represents a hydrogen atom, or a methyl group.

    Abstract translation: 在包含导电基片的感光体中; 感光层; 和保护层，保护层包括具有残留的多元羧酸化合物的基团和具有下述式（10）的基团的交联树脂和具有下述式（2）的化合物中的至少一种， 和具有下述式（3）的化合物。 其中R 5和R 6各自独立地表示氢原子或取代或未取代的碳原子数1〜3的烷基。 其中，R 7和R 8各自独立地表示氢原子或碳原子数1〜4的烷基，Z1表示亚乙烯基，碳原子数6〜14的2价芳香族烃基或2,5-噻吩二基 。 其中，Ar 1和Ar 2各自独立地表示碳原子数为6〜14的芳香族基团，Z 2表示碳原子数为6〜14的二价芳香族烃基，R 9和R 10各自独立地表示氢原子或甲基。

    Photoconductor Overcoat Having Tetrafunctional Radical Polymerizable Charge Transport Molecule
    5.
    发明申请
    Photoconductor Overcoat Having Tetrafunctional Radical Polymerizable Charge Transport Molecule 有权
    具有四官能可自由基聚合电荷传输分子的光电导体外涂层

    公开(公告)号：US20150185628A1

    公开(公告)日：2015-07-02

    申请号：US14145309

    申请日：2013-12-31

    Applicant: Lexmark International, Inc.

    Inventor： David Glenn Black

    IPC: G03G5/06

    CPC classification number: G03G5/0614 ,  G03G5/071 ,  G03G5/076

    Abstract: An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a charge transport molecule containing four radical polymerizable functional groups of the general structure exemplified below: where R1 and R2 contain a spacer group and a radical polymerizable functional group, R3 and R4 are selected from the group consisting of a radical polymerizable functional group, a non-radical polymerizable functional group, and one each of a radical polymerizable functional group and a non-radial polymerizable functional group, and R5 and R6 contain a spacer group and a radical polymerizable functional group. The curable composition also contains at least one curing agent. The curing agent comprises a urethane resin containing six radical polymerizable functional groups. This overcoat layer improves wear resistance of the organic photoconductor drum without negatively altering the electrophotographic properties, thus protecting the organic photoconductor drum from damage and extending its service life.

    Abstract translation: 提供了一种用于电子照相成像装置的有机感光鼓的改进的外涂层。 外涂层由包含电荷输送分子的固化性组合物制备，该电荷传输分子含有以下例示的通式结构的四个可自由基聚合的官能团：其中R1和R2含有间隔基团和可自由基聚合的官能团，R 3和R 4选自 由自由基聚合性官能团，非自由基聚合性官能团和自由基聚合性官能团和非可径向聚合性官能团中的一种组成，R5和R6含有间隔基和自由基聚合性官能团。 可固化组合物还含有至少一种固化剂。 固化剂包含含有6个可自由基聚合的官能团的聚氨酯树脂。 该外涂层提高了有机感光鼓的耐磨性，而不会不利地改变电子照相性能，从而保护有机感光鼓免受损坏并延长其使用寿命。

    Electrophotographic photoreceptor, process cartridge, and image forming apparatus
    6.
    发明授权
    Electrophotographic photoreceptor, process cartridge, and image forming apparatus 有权
    电子照相感光体，处理盒和成像设备

    公开(公告)号：US08765341B2

    公开(公告)日：2014-07-01

    申请号：US13606864

    申请日：2012-09-07

    Applicant: Jiro Korenaga ,  Daisuke Haruyama

    Inventor： Jiro Korenaga ,  Daisuke Haruyama

    IPC: G03G15/04

    CPC classification number: G03G5/0614 ,  G03G5/0607 ,  G03G5/064 ,  G03G5/076 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795 ,  G03G15/75

    Abstract: An electrophotographic photoreceptor includes a conductive substrate, a photosensitive layer that is provided on the conductive substrate, and a surface layer that is provided on the photosensitive layer or is contained in the photosensitive layer, wherein the surface layer is formed of a cured film of a composition including a first reactive charge transport material having a hydroxyl group and a second reactive charge transport material having a methoxy group, and has an elastic deformation ratio R satisfying the following Expression (1): 0.40≦R≦0.51.

    Abstract translation: 电子照相感光体包括导电性基材，设置在导电性基材上的感光层和设在感光层上或被包含在感光层中的表面层，其中，表面层由 组合物，其包含具有羟基的第一反应性电荷输送材料和具有甲氧基的第二反应性电荷输送材料，并且具有满足以下表达式（1）的弹性变形率R：0.40＆nlE; R＆lt; IL; 0.51。

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