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1. 发明申请

US20180246424A1 POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER 审中-公开
公开(公告)号：US20180246424A1
公开(公告)日：2018-08-30
申请号：US15904527
申请日：2018-02-26
申请人： KYOCERA Document Solutions Inc.
发明人： Jun AZUMA , Kensuke OKAWA , Akihiko OGATA , Kenji KITAGUCHI , Tomofumi SHIMIZU
IPC分类号： G03G5/05 , G03G5/047 , G03G5/06 , C08G63/672 , C08G63/91
CPC分类号： G03G5/0589 , C08G63/672 , C08G63/6826 , C08G63/916 , G03G5/047 , G03G5/056 , G03G5/0614 , G03G5/0668 , G03G5/0672 , G03G2215/00957
摘要： A polyarylate resin includes at least one type of repeating unit represented by a general formula (1), at least one type of repeating unit represented by a general formula (2), and a terminal group represented by a general formula (3). R1, R2, R3, and R4 each represent, independently of one another, a hydrogen atom or a methyl group. R5 and R6 each represent, independently of each other, a hydrogen atom or a C1-4 alkyl group. R5 and R6 may bond together to represent a C5-7 cycloalkylidene group. X1 represents a divalent group represented by a chemical formula (2A), (2B), (2C), or (2D) with the proviso that when only one type of repeating unit represented by the general formula (2) is included, X1 does not represent a divalent group represented by the chemical formula (2D). Rf represents a chain aliphatic group having at least one fluoro group.

2. 发明申请

US20180164706A1 PHOTOCONDUCTOR AND METHOD FOR PRODUCING THE SAME 审中-公开
公开(公告)号：US20180164706A1
公开(公告)日：2018-06-14
申请号：US15832992
申请日：2017-12-06
申请人： Konica Minolta, Inc.
发明人： Masanori YUMITA , Toyoko Shibata , Tomoko Sakimura
IPC分类号： G03G5/05 , G03G5/07 , G03G5/06
CPC分类号： G03G5/0546 , G03G5/0525 , G03G5/0589 , G03G5/0592 , G03G5/0648 , G03G5/071 , G03G5/14704 , G03G5/14726 , G03G5/14786
摘要： The photoconductor includes a conductive support, a photosensitive layer, and a protective layer. The protective layer is a polymer of a radical-polymerizable composition containing a perfluoropolyether compound including a radical-polymerizable functional group, a radical-polymerizable monomer including a radical-polymerizable functional group, and an inorganic fine particle including a radical-polymerizable functional group. The radical-polymerizable functional group of the perfluoropolyether compound is different from the radical-polymerizable functional group of the radical-polymerizable monomer and identical to the radical-polymerizable functional group of the inorganic fine particle.

3. 发明授权

US09811010B2 Electrophotographic photosensitive member, process cartridge, and image forming apparatus 有权
公开(公告)号：US09811010B2
公开(公告)日：2017-11-07
申请号：US15016350
申请日：2016-02-05
申请人： FUJI XEROX CO., LTD.
发明人： Yasuhiro Niida , Kazuyuki Tada , Jiro Korenaga , Yukimi Kawabata
IPC分类号： G03G5/06 , G03G5/043 , G03G15/00 , G03G21/18
CPC分类号： G03G5/043 , G03G5/0539 , G03G5/0589 , G03G5/0603 , G03G5/0607 , G03G15/75 , G03G21/18 , G03G21/1814
摘要： An electrophotographic photosensitive member includes a conductive base and a single-layer-type photosensitive layer on the conductive base. The photosensitive layer contains a binder resin, a charge generation material, a hole transport material, a fluorine-atom-containing electron transport material, and fluorine-atom-containing resin particles. An amount of the charge generation material in the photosensitive layer is 0.5% by weight or more and less than 2.0% by weight. The charge generation material has a distribution that satisfies Formula (1): 30≦a/b in a thickness direction of the photosensitive layer where a and b are as defined in the specification, and b may be 0. The fluorine-atom-containing electron transport material has a distribution that satisfies Formula (2): 30≦c/d in the thickness direction of the photosensitive layer where c and d are as defined in the specification, and d may be 0.

4. 发明授权

US09684277B2 Process cartridge and image-forming method 有权
公开(公告)号：US09684277B2
公开(公告)日：2017-06-20
申请号：US14941537
申请日：2015-11-13
申请人： CANON KABUSHIKI KAISHA
发明人： Yuki Yamamoto , Atsushi Okuda , Yuka Ishiduka , Shuhei Moribe , Koji Nishikawa
IPC分类号： G03G5/00 , G03G21/18 , G03G5/05 , G03G9/097 , G03G5/07 , G03G15/00 , G03G5/147
CPC分类号： G03G21/1814 , G03G5/0546 , G03G5/0564 , G03G5/0589 , G03G5/078 , G03G5/14752 , G03G5/14756 , G03G5/14773 , G03G9/097 , G03G9/09716 , G03G9/09725 , G03G15/75 , G03G2215/00957
摘要： Provided are a process cartridge and an image-forming method each of which has a satisfactory cleaning property even at the initial stage of the use of a brand-new process cartridge or electrophotographic apparatus, and hence can suppress a reduction in image quality due to the contamination of a charging member. The charge transporting layer of an electrophotographic photosensitive member contains a specific polyarylate resin or polycarbonate resin, and a toner contains a specific fine particle on the surface of a toner particle.

5. 发明申请

US20160139556A1 PROCESS CARTRIDGE AND IMAGE-FORMING METHOD 有权
标题翻译：过程盒和图像形成方法
公开(公告)号：US20160139556A1
公开(公告)日：2016-05-19
申请号：US14941537
申请日：2015-11-13
申请人： CANON KABUSHIKI KAISHA
发明人： Yuki Yamamoto , Atsushi Okuda , Yuka Ishiduka , Shuhei Moribe , Koji Nishikawa
IPC分类号： G03G9/00 , G03G21/18
CPC分类号： G03G21/1814 , G03G5/0546 , G03G5/0564 , G03G5/0589 , G03G5/078 , G03G5/14752 , G03G5/14756 , G03G5/14773 , G03G9/097 , G03G9/09716 , G03G9/09725 , G03G15/75 , G03G2215/00957
摘要： Provided are a process cartridge and an image-forming method each of which has a satisfactory cleaning property even at the initial stage of the use of a brand-new process cartridge or electrophotographic apparatus, and hence can suppress a reduction in image quality due to the contamination of a charging member. The charge transporting layer of an electrophotographic photosensitive member contains a specific polyarylate resin or polycarbonate resin, and a toner contains a specific fine particle on the surface of a toner particle.
摘要翻译：提供了一种处理盒和图像形成方法，即使在使用全新的处理盒或电子照相设备的初始阶段，它们都具有令人满意的清洁性能，因此可以抑制图像质量的降低充电部件的污染。电子照相感光构件的电荷输送层含有特定的多芳基化合物树脂或聚碳酸酯树脂，调色剂在调色剂颗粒的表面上含有特定的微粒。

6. 发明申请

US20160085163A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：电子照相机，过程盒和图像形成装置
公开(公告)号：US20160085163A1
公开(公告)日：2016-03-24
申请号：US14602997
申请日：2015-01-22
申请人： FUJI XEROX CO., LTD.
发明人： Kenji KAJIWARA , Katsumi NUKADA , Hidekazu HIROSE , Tomoya SASAKI , Yuko IWADATE , Tatsuki SANO
IPC分类号： G03G15/00
CPC分类号： G03G5/0648 , G03G5/0507 , G03G5/0589 , G03G5/0592 , G03G5/0618 , G03G5/062
摘要： An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an outermost surface layer of the electrophotographic photoreceptor is a cured film of a composition containing a reactive charge transporting material and silica particles having a hydrophobization-treated surface.
摘要翻译：电子照相感光体包括导电性基材和设置在导电性基材上的感光层，电子照相感光体的最表面层为含有反应性电荷输送性物质和疏水化处理面的二氧化硅粒子的组合物的固化膜。

7. 发明申请

US20150277247A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS 审中-公开
标题翻译：电子照相感光元件，工艺盒和电子照相设备
公开(公告)号：US20150277247A1
公开(公告)日：2015-10-01
申请号：US14736193
申请日：2015-06-10
申请人： CANON KABUSHIKI KAISHA
发明人： Michiyo Sekiya , Kunihiko Sekido , Atsushi Okuda , Hiroyuki Tomono , Nobuhiro Nakamura , Yota Ito , Kenichi Kaku , Yuka Ishiduka
IPC分类号： G03G15/02
CPC分类号： G03G5/047 , G03G5/0542 , G03G5/0546 , G03G5/055 , G03G5/0575 , G03G5/0589 , G03G5/0592 , G03G5/0605 , G03G5/0607 , G03G5/0648 , G03G5/065 , G03G5/0651 , G03G5/0657 , G03G5/075 , G03G5/076 , G03G5/142 , G03G15/00 , G03G15/751
摘要： An electrophotographic photosensitive member has a laminated body and a hole transporting layer formed on the laminated body, wherein the laminated body has a support, an electron transporting layer and a charge generating layer in this order, and satisfies the following expressions (2) and (4): |V12−V11|≦0.35 (2) 0.10≦|(Vd2−V13)/Vd2|0.20 (4).
摘要翻译：电子照相感光构件具有层叠体和形成在层叠体上的空穴传输层，其中层叠体依次具有支撑体，电子传输层和电荷产生层，并且满足以下表达式（2）和（ 4）：| V12-V11 |＆nlE; 0.35（2）0.10＆nlE; |（Vd2-V13）/Vd2|0.20（4）。

8. 发明申请

US20150037732A1 METHOD FOR MANUFACTURING PHOTORECEPTOR LAYERS 审中-公开
标题翻译：制造光电子层的方法
公开(公告)号：US20150037732A1
公开(公告)日：2015-02-05
申请号：US13957039
申请日：2013-08-01
申请人： Xerox Corporation
发明人： Lanhui Zhang , Lin Ma
IPC分类号： G03G5/05
CPC分类号： G03G5/0589 , G03G5/0539 , G03G5/0614 , G03G5/14726
摘要： The present teachings describe a process of forming a charge transport layer (CTL) coating dispersion. The process includes mixing a surfactant and a first organic solvent until the surfactant is completely solubilized. Fluoroplastic particles are added to the solubilized surfactant and first organic solvent while mixing to form a slurry. The slurry includes a particulate solid content of from about 5 weight percent to about 60 weight percent. The process includes mixing a base solution that includes a charge transport material, a binder, an antioxidant and a second organic solvent. The base solution is added to the slurry while mixing to form a CTL pre-mix dispersion.
摘要翻译：本教导描述了形成电荷输送层（CTL）涂层分散体的方法。该方法包括混合表面活性剂和第一有机溶剂，直到表面活性剂完全溶解。将氟塑料颗粒加入到溶解的表面活性剂和第一有机溶剂中同时混合以形成浆料。浆料包括约5重量％至约60重量％的颗粒状固体含量。该方法包括混合包含电荷输送材料，粘合剂，抗氧化剂和第二有机溶剂的碱溶液。将基础溶液加入到浆料中同时混合以形成CTL预混合分散体。

9. 发明授权

US08927184B2 Method of producing electrophotographic photosensitive member 有权
标题翻译：电子照相感光构件的制造方法
公开(公告)号：US08927184B2
公开(公告)日：2015-01-06
申请号：US13989375
申请日：2011-11-10
申请人： Michiyo Sekiya , Kunihiko Sekido , Akihiro Maruyama
发明人： Michiyo Sekiya , Kunihiko Sekido , Akihiro Maruyama
IPC分类号： G03G5/04 , G03G15/00 , G03G5/05 , G03G5/06
CPC分类号： G03G15/00 , G03G5/0525 , G03G5/0535 , G03G5/0546 , G03G5/0589 , G03G5/0596 , G03G5/06
摘要： The present invention provides a method of producing an electrophotographic photosensitive member using a dispersion solution that shows high liquid stability in long-period storage and hardly causes aggregation of charge-transporting pigment particles during drying a coating. The method of producing an electrophotographic photosensitive member having a charge-transporting layer comprises a step of forming a coating film by applying a dispersion solution comprising polyolefin polymer particles and charge-transporting pigment particles as dispersoids and comprising a dispersion medium, and then forming the charge-transporting layer by heating the coating film and melting the polyolefin polymer particles, wherein the particles consisting of the polyolefin polymer particles and the charge-transporting pigment particles in the dispersion solution have a number average particle diameter of 50 nm or more and 300 nm or less and a degree of dispersion (standard deviation/number average particle diameter) of 1.0 or less.
摘要翻译：本发明提供使用在长时间保存中显示高液体稳定性的分散液制造电子照相感光构件的方法，并且在干燥涂料期间几乎不引起电荷输送颜料颗粒的聚集。制造具有电荷输送层的电子照相感光构件的方法包括通过涂布包含聚烯烃聚合物颗粒和电荷输送颜料颗粒作为分散体并包含分散介质，然后形成电荷的分散溶液形成涂膜的步骤通过加热涂膜并熔融聚烯烃聚合物颗粒，其中由分散溶液中的聚烯烃聚合物颗粒和电荷输送颜料颗粒组成的颗粒的数均粒径为50nm以上至300nm，或分散度（标准偏差/数均粒径）为1.0以下。

10. 发明授权

US08771909B2 Electrophotographic photoconductor, image forming apparatus, and process cartridge 有权
标题翻译：电子照相感光体，成像设备和处理盒
公开(公告)号：US08771909B2
公开(公告)日：2014-07-08
申请号：US13670022
申请日：2012-11-06
申请人： Yuusuke Koizuka , Yuuji Tanaka , Kazukiyo Nagai , Tetsuro Suzuki
发明人： Yuusuke Koizuka , Yuuji Tanaka , Kazukiyo Nagai , Tetsuro Suzuki
IPC分类号： G03G5/00
CPC分类号： G03G15/75 , G03G5/0589 , G03G5/0592 , G03G5/0614 , G03G5/14704 , G03G5/14769 , G03G5/14786 , G03G5/14791
摘要： An electrophotographic photoconductor including: an electrically conductive substrate; and at least a photoconductive layer on the electrically conductive substrate, wherein the electrophotographic photoconductor includes an uppermost surface layer, and the uppermost surface layer includes an inorganic filler, an acidic disperser and a three-dimensionally crosslinked polymer, wherein the three-dimensionally crosslinked polymer is formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups where the charge transporting compound has one or more aromatic rings and the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups are bound to the aromatic rings of the charge transporting compound, and wherein the polymerization proceeds after some of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups have been partially cleaved and eliminated with an acid catalyst.
摘要翻译：一种电子照相感光体，包括：导电基底; 以及导电性基板上的至少一层光电导层，其中电子照相感光体包括最上表面层，最上表面层包括无机填料，酸性分散剂和三维交联聚合物，其中三维交联的聚合物是通过在各自含有电荷输送化合物和三（或四氢-2H-吡喃-2-基）氧基]甲基的化合物之间的聚合形成的，其中电荷输送化合物具有一个或多个芳环，并且[（四氢-2H- - 吡喃-2-基）氧基]甲基与电荷输送化合物的芳香环结合，并且其中在[（四氢-2H-吡喃-2-基）氧基]甲基的一些已经被用酸催化剂部分裂解和去除。

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