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    Electrophotosensitive material
    1.
    发明授权
    Electrophotosensitive material 有权
    电光敏材料

    公开(公告)号：US07101647B2

    公开(公告)日：2006-09-05

    申请号：US10667905

    申请日：2003-09-23

    申请人： Jun Azuma ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Hisakazu Honma

    发明人： Jun Azuma ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Hisakazu Honma

    IPC分类号： G03G5/06

    CPC分类号： G03G5/0679 ,  G03G5/0675 ,  G03G5/0677 ,  G03G5/0696

    摘要： The present invention provides an electrophotosensitive material which realizes uniform dispersion of phthalocyanines in a photosensitive layer and has high sensitivity to a digital light source, and also excellent in charge stability under the high temperature atmosphere, weatherability and NOx resistance. The electrophotosensitive material is produced by forming a single-layer type or multi-layer type photosensitive layer containing phthalocyanine as an electric charge generating material, an electric charge transferring material, a predetermined insoluble azo pigment and a predetermined binder resin on a conductive substrate and using, as the insoluble azo pigment, an insoluble azo pigment having no OH group in the molecule wherein (i) an absorbance in an absorption wavelength range of phthalocyanine is ⅓ or less of an absorbance of the phthalocyanine in the wavelength range, or (ii) an absorbance in a wavelength range of an exposure light source of an image forming apparatus is ⅓ or less of an absorbance of the phthalocyanine in the wavelength range.

    摘要翻译： 本发明提供了一种电光敏材料，其实现了酞菁在感光层中的均匀分散，并且对数字光源具有高灵敏度，并且在高温气氛，耐气候性和耐NOx性下也具有优异的电荷稳定性。 通过在导电性基板上形成含有酞菁作为电荷产生材料，电荷转移材料，预定的不溶性偶氮颜料和预定粘合剂树脂的单层型或多层型感光层，并使用 作为不溶性偶氮颜料，在分子中不具有OH基的不溶性偶氮颜料，其中（i）酞菁的吸收波长范围内的吸光度为酞菁的波长范围的吸光度的1/3以下，或（ ii）图像形成装置的曝光光源的波长范围内的吸光度为酞菁在波长范围内的吸光度的1/3以下。

    Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material
    2.
    发明授权
    Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material 有权
    钛菁酞菁晶体及其制备方法相同，并具有电光敏材料

    公开(公告)号：US07057034B2

    公开(公告)日：2006-06-06

    申请号：US10648719

    申请日：2003-08-27

    申请人： Kazunari Hamasaki ,  Daisuke Kuboshima ,  Hisakazu Honma ,  Jun Azuma ,  Eiichi Miyamoto

    发明人： Kazunari Hamasaki ,  Daisuke Kuboshima ,  Hisakazu Honma ,  Jun Azuma ,  Eiichi Miyamoto

    IPC分类号： C07D487/22

    CPC分类号： C09B47/045 ,  C09B67/0026

    摘要： The present invention relates to a novel titanyl phthalocyanine crystal which can prepare a coating solution having excellent storage stability because it satisfies both of the following two characteristics (a) and (b), a method of producing the same, an electrophotosensitive material using the above crystal as an electric charge generating material. (a) The crystal has a maximum peak at a Bragg angle 2θ±0.2°=27.2° and has no peak at 7.4° in a CuKα characteristic X-ray diffraction spectrum. (b) The crystal does not have a peak of a change in temperature within a range from 50 to 400° C. except for a peak associated with evaporation of adsorbed water in differential scanning calorimetry.

    摘要翻译： 本发明涉及一种新的钛酞菁结晶，其可以制备具有优异的储存稳定性的涂布溶液，因为它满足以下两个特征（a）和（b），其制备方法，使用上述的电光敏材料 晶体作为电荷产生材料。 （a）晶体在布拉格角2θ±0.2°= 27.2°处具有最大峰值，并且在CuKalpha特征X射线衍射光谱中在7.4°没有峰值。 （b）在差示扫描量热法中，与吸附水的蒸发相关的峰除外，晶体的温度变化的峰值在50〜400℃的范围内。

    Single-layer type electrophotosensitive material
    4.
    发明授权
    Single-layer type electrophotosensitive material 有权
    单层型电光敏材料

    公开(公告)号：US06461779B1

    公开(公告)日：2002-10-08

    申请号：US09819683

    申请日：2001-03-29

    申请人： Yukimasa Watanabe ,  Jun Azuma ,  Kyoichi Nakamura ,  Ayako Yashima ,  Hisakazu Honma

    发明人： Yukimasa Watanabe ,  Jun Azuma ,  Kyoichi Nakamura ,  Ayako Yashima ,  Hisakazu Honma

    IPC分类号： G03G1500

    CPC分类号： G03G5/0567 ,  G03G5/0564

    摘要： Disclosed is a single-layer type electrophotosensitive material which comprises a conductive substrate, and a photosensitive layer made of a binder resin containing at least an electric charge generating material and an electric charge transferring material formed on said conductive substrate, wherein said photosensitive layer contains a polyalkylene glycol compound represented by the formula [1]: A1—O—[(CH2)m—O]n—A2 wherein A1 and A2 are the same or different and represent an alkyl or aryl group having 1 to 50 carbon atoms, or a group: —CO—R10 (R10 represents an alkyl or aryl group having 1 to 50 carbon atoms), m represents an integer of 1 to 5, and n represents an integer of 2 to 100, which is superior in wear resistance, sensitivity and gas resistance.

    摘要翻译： 公开了一种单层型电光敏材料，其包括导电基材和由至少含有电荷产生材料和形成在所述导电基材上的电荷转移材料的粘合剂树脂制成的感光层，其中所述感光层包含 由式[1]表示的聚亚烷基二醇化合物：其中A1和A2相同或不同，表示碳原子数为1〜50的烷基或芳基，或-CO-R10（R10表示烷基或芳基） 具有1至50个碳原子），m表示1至5的整数，n表示2至100的整数，其耐磨性，灵敏度和耐气体性优异。