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1.发明授权公开(公告)号：US09760029B2
公开(公告)日：2017-09-12
申请号：US15007332
申请日：2016-01-27
CPC分类号： G03G5/0609 , G03G5/0668 , G03G5/0677 , G03G5/0696
摘要： An electrophotographic photosensitive member includes a single-layer type photosensitive layer including phthalocyanine or a derivative thereof and an electron transport material. The electron transport material includes at least one first compound represented by formula (1) or (2) shown below and at least one second compound represented by formula (3), (4), or (5) shown below. A total amount of the at least one first compound and the at least one second compound is no less than 60 parts by mass and no greater than 120 parts by mass relative to 100 parts by mass of the binder resin. An amount of the at least one first compound is no less than 35 parts by mass and no greater than 80 parts by mass. An amount of the at least one second compound is no less than 25 parts by mass and no greater than 40 parts by mass.
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2.发明授权Positively chargeable electrophotographic photosensitive member and image forming apparatus 有权可充电的电子照相感光构件和图像形成装置公开(公告)号：US09213229B2
公开(公告)日：2015-12-15
申请号：US14169031
申请日：2014-01-30
CPC分类号： G03C1/73 , G03C1/52 , G03G5/047 , G03G5/0542
摘要： A positively chargeable electrophotographic photosensitive member has a photosensitive layer. The photosensitive layer at least includes the following layers layered in the stated order: (I) a charge transport layer at least containing a hole transport material and a binder resin; and (II) a charge generating-and-transporting layer at least containing a charge generating material, an electron transport material, a hole transport material, and a binder resin all within this layer. The binder resin contained in the charge transport layer is different from the binder resin contained in the charge generating-and-transporting layer, and either of the binder resins contains a polyvinyl acetal resin.
摘要翻译： 带正电的电子照相感光构件具有感光层。 感光层至少包括以下顺序层叠的以下层：（I）至少含有空穴传输材料和粘合剂树脂的电荷传输层; 和（II）至少含有电荷产生材料，电子传输材料，空穴传输材料和粘合剂树脂的电荷产生和传输层。 包含在电荷输送层中的粘合剂树脂与电荷产生 - 输送层中所含的粘合剂树脂不同，并且任一种粘合剂树脂含有聚乙烯醇缩醛树脂。
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3.发明授权公开(公告)号：US09696641B2
公开(公告)日：2017-07-04
申请号：US15010098
申请日：2016-01-29
CPC分类号： G03G5/047 , G03G5/0614 , G03G5/0672 , G03G5/0696
摘要： An electrophotographic photosensitive member includes a photosensitive layer. The photosensitive layer contains a charge generating material and a hole transport material represented by general formula (1) shown below in a single layer. Titanyl phthalocyanine contained as the charge generating material exhibits a main peak at a Bragg angle 2θ±0.2°=27.2° in a CuKα characteristic X-ray diffraction spectrum and satisfies either (B) or (C), shown below, in a differential scanning calorimetry spectrum. (B) A peak is not present in a range from 50° C. to 400° C., other than a peak resulting from vaporization of adsorbed water. (C) A peak is not present in a range from 50° C. to 270° C., other than a peak resulting from vaporization of adsorbed water, and a peak is present in a range from 270° C. to 400° C.
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4.发明授权公开(公告)号：US11003101B2
公开(公告)日：2021-05-11
申请号：US16740028
申请日：2020-01-10
发明人： Yuko Iwashita , Kazunari Hamasaki
摘要： An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer is a single layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The hole transport material includes a compound represented by chemical formula (1-1) or (1-2). The photosensitive layer further contains an n-type pigment. The n-type pigment is preferably an azo pigment or a perylene pigment.
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5.发明授权公开(公告)号：US10539889B2
公开(公告)日：2020-01-21
申请号：US16260255
申请日：2019-01-29
摘要： An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer of a single layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. An optical response time is at least 0.05 milliseconds and no greater than 0.85 milliseconds. The binder resin includes a polycarbonate resin including a repeating unit represented by general formula (1) shown below and a repeating unit represented by general formula (2) shown below.
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6.发明授权公开(公告)号：US10802411B2
公开(公告)日：2020-10-13
申请号：US16496220
申请日：2018-03-16
摘要： An electrophotographic photosensitive member includes a photosensitive layer of a single layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. An optical response time is 0.05 milliseconds or longer and 0.85 milliseconds or shorter. The optical response time is a time from irradiation of a surface of the photosensitive layer charged to +800 V with pulse light having a wavelength of 780 nm to decay of a surface potential of the photosensitive layer from +800 V to +400 V. The pulse light has an intensity that allows the surface potential of the photosensitive layer to decay to +200 V from +800 V after 400 milliseconds elapse from the irradiation of the surface of the photosensitive layer charged to +800 V with the pulse light. The photosensitive layer has a Martens hardness at 50° C. of at least 160 N/mm2.
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7.发明授权公开(公告)号：US09158264B2
公开(公告)日：2015-10-13
申请号：US14068182
申请日：2013-10-31
CPC分类号： G03G15/75 , G03G5/047 , G03G5/0675 , G03G5/0696 , G03G5/0698
摘要： A single-layer-type electrophotographic photosensitive member includes a layer disposed on an electrically conductive substrate, the layer including at least a charge-generating material, an electron transport material, a hole transport material, and a binder resin within the same layer. The charge-generating material contains a phthalocyanine pigment and N-type pigments including at least a perylene-based pigment and an azo-based pigment, and the total amount of the N-type pigments is 0.03 to 10 parts by mass relative to 1 part by mass of the phthalocyanine pigment.
摘要翻译： 单层型电子照相感光构件包括设置在导电基板上的层，该层至少包括在同一层内的电荷产生材料，电子传输材料，空穴传输材料和粘合剂树脂。 电荷产生材料含有酞菁颜料和至少包含苝基颜料和偶氮类颜料的N型颜料，并且N型颜料的总量相对于1份为0.03〜10质量份 的酞菁颜料。
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8.发明申请公开(公告)号：US20140120464A1
公开(公告)日：2014-05-01
申请号：US14068182
申请日：2013-10-31
IPC分类号： G03G15/00
CPC分类号： G03G15/75 , G03G5/047 , G03G5/0675 , G03G5/0696 , G03G5/0698
摘要： A single-layer-type electrophotographic photosensitive member includes a layer disposed on an electrically conductive substrate, the layer including at least a charge-generating material, an electron transport material, a hole transport material, and a binder resin within the same layer. The charge-generating material contains a phthalocyanine pigment and N-type pigments including at least a perylene-based pigment and an azo-based pigment, and the total amount of the N-type pigments is 0.03 to 10 parts by mass relative to 1 part by mass of the phthalocyanine pigment.
摘要翻译： 单层型电子照相感光构件包括设置在导电基板上的层，该层至少包括在同一层内的电荷产生材料，电子传输材料，空穴传输材料和粘合剂树脂。 电荷产生材料含有酞菁颜料和至少包含苝基颜料和偶氮类颜料的N型颜料，并且N型颜料的总量相对于1份为0.03〜10质量份 的酞菁颜料。
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