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    Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image forming apparatus
    85.
    发明公开
    Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image forming apparatus 有权
    电子照相感光体，电子照相感光体的盒和图像形成装置

    公开(公告)号：EP2290451A3

    公开(公告)日：2013-03-20

    申请号：EP10015524.1

    申请日：2006-10-26

    申请人： Mitsubishi Chemical Corporation

    发明人： Wada, Mitsuo ,  Takamura, Hiroaki ,  Mitsumori, Teruyuki ,  Ida, Kazutaka

    IPC分类号： G03G5/06 ,  G03G5/00

    CPC分类号： G03G5/0696 ,  G03G5/0614 ,  G03G5/0616

    摘要： The invention provides an electrophotographic photoreceptor showing suitable electric characteristics, capable of forming a favorable image even after repeated use for long term and capable of forming a high quality image free from image defects such as a memory phenomenon, an electrophotographic process cartridge using such an electrophotographic photoreceptor, and an image forming apparatus using such an electrophotographic photoreceptor.
    The electrophotographic photoreceptor comprises a photosensitive layer which contains oxytitanium phthalocyanine showing chief diffraction peaks at Bragg angles (2θ ± 0.2°) of 9.5°, 9.7°, 24.2° and 27.2° to CuKα characteristic X-ray (wavelength: 1.541 Å) obtained by subjecting a phthalocyanine crystal precursor to an acid pasting method and then bringing it into contact with an organic solvent, and a hydrazone compound represented by the following formula (1):

    and the oxytitanium phthalocyanine is obtained by crystal conversion from oxytitanium phthalocyanine having a chlorine content of at most 0.4 wt%, or oxytitanium phthalocyanine in which the ratio of chlorinated oxytitanium phthalocyanine to non-substituted oxytitanium phthalocyanine is at most 0.05 by the mass spectrum intensity ratio.

    PARA-ARAMID FIBER AND METHOD OF PREPARING THE SAME
    87.
    发明授权
    PARA-ARAMID FIBER AND METHOD OF PREPARING THE SAME 有权
    对位芳纶纤维及其制造方法

    公开(公告)号：EP2260131B1

    公开(公告)日：2012-08-08

    申请号：EP09754911.7

    申请日：2009-03-31

    申请人： Kolon Industries, Inc

    发明人： LEE, Jae Young ,  KIM, Jae Young ,  PARK, Tae Hak ,  YEO, Sang Young

    IPC分类号： D01F6/60 ,  D01D5/06 ,  D01D7/00 ,  D03D15/00

    CPC分类号： D01F6/605 ,  B29C47/0014 ,  B29C47/8895 ,  D01D5/06 ,  D01D7/00 ,  D03D13/008 ,  D10B2331/021 ,  Y10T428/2978

    摘要： An aramid fiber and a method of producing the same is disclosed, which is capable of realizing high surface uniformity and improved tensile strength and elongation property, wherein the method comprises preparing an aromatic polyamide by polymerizing aromatic diamine with aromatic diacid halide; preparing a spinning dope by dissolving the aromatic polyamide in a solvent; and extruding the spinning dope through a spinneret, and sequentially passing the spinning dope through an air gap, a coagulation bath filled with a coagulation solution, and a co¬ agulation tube having a jet opening, connected with the bottom of the coagulation bath, to obtain a filament wherein a distance from the upper surface of the coagulation solution contained in the coagulation bath to the jet opening of the coagulation tube is within a range between 10 and 35mm.