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    MAGNETIC RECORDING MEDIUM
    43.
    发明专利
    MAGNETIC RECORDING MEDIUM 失效

    公开(公告)号：JPS58175132A

    公开(公告)日：1983-10-14

    申请号：JP5871182

    申请日：1982-04-08

    Applicant: TORAY INDUSTRIES

    Inventor： OOSHIMA KATSUNORI

    IPC: G11B5/66 ,  C08L67/02 ,  G11B5/64 ,  G11B5/73 ,  G11B5/735

    Abstract: PURPOSE:To form a magnetic recording medium causing no curl and undergoing no dimensional change in long-term use, by combining metallic foil of a paramagnetic body or a diamagnetic body with a plastic film and a thin filmlike ferromagnetic body. CONSTITUTION:A thin film of Co having 0.3mum thickness is continuously formed on one side of biaxially stretched polyethylene terephthalate having 15mum thickness by vapor deposition with electron beams to obtain a thin film type magnetic recording medium A. The medium A is dry laminated on metallic foil of a paramagnetic body or a diamagnetic body having 20mum thickness with the vapor-deposited surface outward by using a urethane adhesive to obtain a flat composite type magnetic recording medium causing no curl. Foil of Al, Cu, Sn, Zn, stainless steel or an alloy thereof is used as the metallic foil, and a platelike body is included. A plastic film is formed from a well-known resin by a known means, and a biaxially stretched polyester film is preferably used.

    TRANSPARENT ELECTROPHOTOGRAPHIC RECEPTOR
    45.
    发明专利
    TRANSPARENT ELECTROPHOTOGRAPHIC RECEPTOR 失效

    公开(公告)号：JPS57204558A

    公开(公告)日：1982-12-15

    申请号：JP8965781

    申请日：1981-06-12

    Applicant: TORAY INDUSTRIES

    Inventor： KAKIMOTO AKIO ,  KAURA KAZUO ,  OOSHIMA KATSUNORI

    IPC: G03G5/00 ,  G03G5/05 ,  G03G5/08

    Abstract: PURPOSE:To obtain a transparent electrophotographic receptor having good mechanical characteristics of adhesion and flexibility etc., good electrophotographic characteristics without any rise of residual electric potential and lowering of sensitivity, by providing a specific adhesive layer. CONSTITUTION:A transparent conductive layer consisting of metal or metallic oxide such as Pt, Pd, Au and Ph, etc. is provided on a transparent plastic film such as a biaxially oriented polyester film, etc. to prepare a transparent conductive film. An adhesive layer containing 500-5,000mol.wt. polyester or 5-50wt% polyether of at least one kind on the film. The thickness of said layer is =50mu thickness on said adhesive layer.

    ELECTROPHOTOGRAPHIC RECEPTOR
    46.
    发明专利
    ELECTROPHOTOGRAPHIC RECEPTOR 失效

    公开(公告)号：JPS57158648A

    公开(公告)日：1982-09-30

    申请号：JP4319881

    申请日：1981-03-26

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUURA KAZUO ,  NAKAHARA KATSUJI ,  OOSHIMA KATSUNORI

    IPC: G03G5/06

    Abstract: PURPOSE:To obtain an electrophotographic receptor with increased electrostatic charge receptivity, charging retentivity, sensitivity and durability by adding metal-free phthalocyanine to a charge generating layer and a carbostyryl deriv. having a specified structure to a charge transferring layer. CONSTITUTION:A mixed and dispersed soln. consisting of metal-free phthalocyanine, polyester resin and THF or the like is applied to an electrically conductive substrate to form a charge generating layer. A mixed soln. consisting of a carbostyryl deriv. represented by formulaI(where R1 is H, alkyl, phenyl or the like, R2 is H, alkyl or the like, and n is 1 or 2), e.g., the compound of formula II, polycarbonate resin and monochlorobenzene, dichloroethane or the like is then applied to form a charge transferring layer. The resulting electrophotographic receptor has high electrostatic charge receptivity and charging retentivity in the dark and superior characteristics such as high sensitivity and durability.

    ELECTROPHOTOGRAPHIC RECEPTOR COMPOSITION
    47.
    发明专利
    ELECTROPHOTOGRAPHIC RECEPTOR COMPOSITION 失效

    公开(公告)号：JPS55100562A

    公开(公告)日：1980-07-31

    申请号：JP658979

    申请日：1979-01-25

    Applicant: TORAY INDUSTRIES

    Inventor： OOSHIMA KATSUNORI

    IPC: G03G5/00 ,  G03G5/08 ,  G03G5/14

    Abstract: PURPOSE:To enable an electrophotographic receptor master to be high in light receiving potential and sensitivity, and low in residual voltage, and superior in voltage resistanc and durability, by providing a specified polyether compound layer between a conductive substrate and an Se photoconductive layer. CONSTITUTION:A polyether layer having units represented by the formula, X being SO2, SO or CO, is formed on a conductive substrate by coating a solution of the polyether. On this layer a 3-5mu thick Se or Se-Te photoconductive layer is formed by vapor deposition, thus permitting a photosensitive master for use in high speed plurality copying to be obtained by use of a small amount of Se or Se-Te alloy. A polyether compound containing 40wt% or more polyether units and other ocnstituents may be used for the above polyether in the form of copolymer or blend with other polymer.

    COLLOIDAL SOLUTION OF TUNGSTEN COMPOUND
    48.
    发明专利
    COLLOIDAL SOLUTION OF TUNGSTEN COMPOUND 失效

    公开(公告)号：JPS5452686A

    公开(公告)日：1979-04-25

    申请号：JP11921777

    申请日：1977-10-04

    Applicant: TORAY INDUSTRIES

    Inventor： OOSHIMA KATSUNORI ,  NAKAE TAKEJI

    IPC: C09K3/00 ,  A62C2/00 ,  A62C3/00 ,  C09K21/02 ,  D06M11/00 ,  D06M11/38 ,  D06M11/48 ,  D06M11/79 ,  D21H21/34

    Abstract: PURPOSE:To provide a colloidal soln. of a W cpd. stable at high concn., effective as a sizing agent for fiber, paper, etc., and contg. the W cpd., a Si cpd. and alkali metal ions or NH4 ions in a predetermined molar ratio. CONSTITUTION:An aq. soln. of M2WO4 (M; an alkali metal), e.g. Na2WO4 or (NH4)2WO4 is treated by a cation exchange method to remove the alkali metal or NH3. The soln. thus treated in mixed with an alkali silicate such as No.3 water glass, ammonium silicate or a these cpds. forming substance in the following molar ratio to prepare a desired colloidal soln. When each component is turned into WO3, SiO2 and M2O, the molar ratio of them is 4-15:2-5:1, esp. 6-12:2-4:1. The resulting colloidal soln. is effective in many fields as a sizing agent for fiber and paper, raw material for novel catalyst, material for incombustible coating, etc.

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