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    3.
    发明专利
    未知

    公开(公告)号：DE69127103T2

    公开(公告)日：1997-11-20

    申请号：DE69127103

    申请日：1991-12-25

    Applicant: TORAY INDUSTRIES

    Inventor： KAWAKAMI KENICHI ,  TSUCHIYA KATSUHIRO ,  MARUHASHI HIDEO

    IPC: B32B13/08 ,  B32B15/08 ,  B32B37/16 ,  B41M3/12 ,  B44C1/14 ,  B44C1/165 ,  B44C1/17 ,  B65D65/40 ,  C23C14/20

    Abstract: A base material of sheet for metallic transfer printing film, which can be formed into a sheet for metallic transfer printing film so as to form a beautiful and smooth metallic transfer printing film having decreased sander marks and high in transfer printing performance. The base material is composed of polypropylene resin film having capacity set at 5 kV or under, roughness of transfer printing surface set at 0.1 mu m or under, and an atomic compositional ratio, the number of oxygen atoms/the number of carbon atoms, in the depth not more than 10 nm distant from the same surface set at 0 to 0.03 whereas 0.1 to 0.5 in the depth not more than 10 nm distant from the other surface.

    MAGNETIC RECORDING MATERIAL
    4.
    发明专利
    MAGNETIC RECORDING MATERIAL 未知

    公开(公告)号：DE3378727D1

    公开(公告)日：1989-01-26

    申请号：DE3378727

    申请日：1983-08-23

    Applicant: TORAY INDUSTRIES

    Inventor： ABE KOICHI ,  KAWAKAMI KENICHI ,  YOSHII TOSHIYA ,  INOUE TOSHIHIDE

    IPC: C08G63/682 ,  C08J5/18 ,  C09D5/23 ,  G11B5/73 ,  C08L67/02 ,  G11B5/62

    Abstract: A magnetic recording material which comprises a film of a polyester and a magnetic layer formed on at least one side of said film, said polyester containing more than 85 mol% of the repeating unit represented by the formula below and having an intrinsic viscosity of 0.3 to 1.4, and said film of said polyester having a refracrive index ratio of 0.935 to 0.975 in the thickness direction and a density index of 0.02 to 0.08.(where X is a halogen atom selected from fluorine, chlorine, and bromine, or an alkyl group of carbon number 1 to 3; and t and m are an integer of 1 to 2, p is an integer of 2 to 6, and q is an integer of 2 to 4.1 Although the magnetic recording material is extremely thin, it exhibits outstanding running performance and electromagnetic conversion characteristics. It makes it possible to miniaturize the magnetic tape cassette and extend the recording time. It is useful for long-time video tape and portable 8-mm video tape.

    5.
    发明专利
    未知

    公开(公告)号：DE69127103D1

    公开(公告)日：1997-09-04

    申请号：DE69127103

    申请日：1991-12-25

    Applicant: TORAY INDUSTRIES

    Inventor： KAWAKAMI KENICHI ,  TSUCHIYA KATSUHIRO ,  MARUHASHI HIDEO

    IPC: B32B13/08 ,  B32B15/08 ,  B32B37/16 ,  B41M3/12 ,  B44C1/14 ,  B44C1/165 ,  B44C1/17 ,  B65D65/40 ,  C23C14/20

    Abstract: A base material of sheet for metallic transfer printing film, which can be formed into a sheet for metallic transfer printing film so as to form a beautiful and smooth metallic transfer printing film having decreased sander marks and high in transfer printing performance. The base material is composed of polypropylene resin film having capacity set at 5 kV or under, roughness of transfer printing surface set at 0.1 mu m or under, and an atomic compositional ratio, the number of oxygen atoms/the number of carbon atoms, in the depth not more than 10 nm distant from the same surface set at 0 to 0.03 whereas 0.1 to 0.5 in the depth not more than 10 nm distant from the other surface.

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