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    TRANSPARENT ELECTROPHOTOGRAPHIC PHOTORECEPTOR
    5.
    发明专利
    TRANSPARENT ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效

    公开(公告)号：JPS57201237A

    公开(公告)日：1982-12-09

    申请号：JP8570181

    申请日：1981-06-05

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUURA KAZUO ,  KAKIMOTO AKIO ,  OOSHIMA KATSUNORI

    IPC: G03G5/07

    Abstract: PURPOSE:To obtain a photoreceptor having no toner flow and turbidity by providing a photoconductive layer contg. brominated polyvinyl carbazole added with a small amt. of diallyl phthalate prepolymer on a transparent conductive film. CONSTITUTION:In a transparent electrophotographic receptor wherein a photoconductive layer contg. brominated polyvinyl carbazole is provided on a transparent conductive film (e.g.; a film or the like prepd. by sputtering Pd on a biaxially oriented polyester film to 2X10 OMEGA/cm surface resistivity), the photoconductive layer is formed by adding (B) 0.5-2.5pts.wt. a diallyl phthalate prepolymer to (A) 100pts.wt. brominated polyvinyl carbazole. It is proposed in the prior art to add 3-20pts.wt. or >=20pts.wt. the component B to 100pts.wt. the component A, and this prevents the flow of the toner but has the drawback of turning the photoconductive layer turbid. If the component B is added at the above-mentioned amts., the flow of the toner is prevented and the turbidity is eliminated.

    COMPOSITE ELECTROPHOTOGRAPHIC RECEPTOR
    6.
    发明专利
    COMPOSITE ELECTROPHOTOGRAPHIC RECEPTOR 失效

    公开(公告)号：JPS5638054A

    公开(公告)日：1981-04-13

    申请号：JP10342179

    申请日：1979-08-14

    Applicant: TORAY INDUSTRIES

    Inventor： NAKAHARA KATSUJI ,  MATSUURA KAZUO ,  OOSHIMA KATSUNORI

    IPC: G03G5/08 ,  G03G5/14 ,  G03G5/147

    Abstract: PURPOSE:To prevent abrasion of an Se or Se alloy layer, deterioration of sensitivity due to crystallization, and rise of residual potential, and to raise flexibility, by adding an insulating layer containing inorganic insulating particles on the surface of the Se or Se alloy layer. CONSTITUTION:An Se or Se alloy layer is formed on a conductive substrate, and on this layer is formed a protective layer made by dispersing into a 100pts.wt. insulating resin, such as polysulfoneether 5-300pts.wt. inorganic insulating and nonphotoconductive particles, such as Al2O3 or SiO2. The electrophotographic receptor thus obtained is prevented from crystallization of the Se or Se alloy, its abrasion, further deterioration of sensitivity, rise of residual potential due to repeated uses, and has superior durability.

    COMPOSITE ELECTROPHOTOGRAPHIC RECEPTOR
    7.
    发明专利
    COMPOSITE ELECTROPHOTOGRAPHIC RECEPTOR 失效

    公开(公告)号：JPS5638053A

    公开(公告)日：1981-04-13

    申请号：JP10342079

    申请日：1979-08-14

    Applicant: TORAY INDUSTRIES

    Inventor： NAKAHARA KATSUJI ,  MATSUURA KAZUO ,  OOSHIMA KATSUNORI

    IPC: G03G5/08 ,  G03G5/04 ,  G03G5/147 ,  H01L31/08

    Abstract: PURPOSE:To restrict crystallization of Se or its alloy, to prevent deteriortion of characteristics, such as that due to abrasion, to reduce an amount of Se used, and to enhance flexibility, by adding an insulating resin layer containing inorganic photoconductive particles on the surface of an Se alloy layer as a photoconductor. CONSTITUTION:An Se or Se alloy layer is formed on a conductive substrate, and on this layer a layer containing 100pts.wt. insulating resin, such as a polyether compound and 3-200pts.wt. inorganic photoconductive particles, such as ZnO or TiO2 is laminated, thus permitting crystallization of Se or Se alloy and abrasion of its surface to be prevented, acceptable potential and dark decay of the photoreceptor not to be affected unfavorably, and its residual potential to be little raised by repeated uses.

    PHOTOCONDUCTOR
    8.
    发明专利
    PHOTOCONDUCTOR 失效

    公开(公告)号：JPS5590954A

    公开(公告)日：1980-07-10

    申请号：JP16180278

    申请日：1978-12-29

    Applicant: TORAY INDUSTRIES

    Inventor： OOSHIMA KATSUNORI ,  OGAWA MASAYUKI

    IPC: G03G5/07

    Abstract: PURPOSE:To produce well-balanced, long-length photoreceptor being inexpensive, pollution-free, and high in durability, transparency and sensitivity, by using a compound material of polymer containing p-phenylene sulfide unit by 70mol% or more and sensitizer in a photoconductive layer. CONSTITUTION:After orienting biaxially, preferably, a polymer film containing p-phenylene sulfide unit shown in the formula by 70mol% or more, a sensitizer (trinitrofluolenone or the like) is evaporated. A conductive layer such as palladium is formed thereon by sputtering or other method to produce a electrophotographic material. The sensitizer may be blended in the polymer film, or laminated by coating. Thus, by using a polymer excelling in transparency and mechanical and thermal durability, electrophotographic photosensitive master, electrophotographic microfilms, etc. may be manufactured easily and at low cost.

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