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    11.
    发明专利
    未知

    公开(公告)号：DE69333590D1

    公开(公告)日：2004-09-16

    申请号：DE69333590

    申请日：1993-01-21

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIDA MINORU ,  SASAKI TOSHIHIRO ,  UEDA TOSHIAKI ,  AOYAMA MASATOSHI ,  SUZUKI MASARU

    IPC: C08J5/18 ,  C08K3/00 ,  C08K3/22 ,  C08L67/02

    Abstract: A thermoplastic polyester composition comprises a thermoplastic polyester prepared from an acid component mainly comprising an aromatic dicarboxylic acid and a glycol component mainly comprising an aliphatic glycol and a particulate mixture of two or more aluminium oxide components different from each other in crystal structure types, one of which is the &thetas;-type crystal structure. Since films formed from the compositions can have excellent slipping property, abrasion resistance and scratch resistance in repeated high-speed running, they are particularly suitable as substrates in magnetic recording media.

    POLYESTER FILM
    14.
    发明专利
    POLYESTER FILM 未知

    公开(公告)号：CA2481620C

    公开(公告)日：2012-07-10

    申请号：CA2481620

    申请日：2004-09-15

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUI RYOSUKE ,  MANABE ISAO ,  YOSHIDA MINORU

    IPC: C08J5/18 ,  B29D7/01 ,  C08J3/20 ,  C08K5/00 ,  C08K5/159 ,  C08L33/04 ,  C08L35/02 ,  C09D167/02

    Abstract: Polyester films of the present invention are especially used for packaging material, and particularly to polyester film that is preferably used for a food packing container and the like by coloring polyester film with organic pigment. A first polyester film of the present invention contains organic pigment of 0.01 to 5 weight % having a molecular weight of 695 to 1000 in a polyester resin. A second polyester film of the present invention is composed mainly of ethylene terephthalate units, having a polyester resin layer (A) made of polyester resin containing copolymerized compounds of 1.5 to 8 mole % and, moreover, containing of organic pigment of 0.01 to 5 weight % and ethylene terephthalate cyclic trimer of 0.2 to 0.9 weight % in the layer (A).

    16.
    发明专利
    未知

    公开(公告)号：DE69526638D1

    公开(公告)日：2002-06-13

    申请号：DE69526638

    申请日：1995-08-28

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIDA MINORU ,  TSUNASHIMA KENJI ,  TOYODA KATSUYA ,  MINAMIZAWA HIDEHITO

    IPC: B29C55/06 ,  B29C55/12 ,  C08J5/18 ,  B29C55/02

    Abstract: A biaxially oriented polyester film wherein the ratio (=IMD /IND) of the peak intensity (IMD) in the longitudinal direction to the peak intensity (IND) in the thickness direction determined at 1615 cm by laser Raman scattering method is not less than 6; and a process for production of a biaxially oriented polyester film which comprises the steps of controlling the ratio (A/B) of the maximum thickness (A) of the edge portion of a cast film to the thickness (B) of the central portion in the transverse direction thereof in the range of 2 to 6, biaxially stretching the cast film, and controlling the peak intensity ratio of the biaxially oriented film determined by the laser Raman scattering method in the above-described range. The biaxially oriented polyester film thus produced has a specific orientation in the longitudinal direction, and therefore has great strength in the longitudinal direction and small irregularity in properties such as thickness or birefringence.

    20.
    发明专利
    未知

    公开(公告)号：DE69220423D1

    公开(公告)日：1997-07-24

    申请号：DE69220423

    申请日：1992-07-24

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIDA MINORU ,  SUZUKI MASARU ,  KIMURA MASAHIRO ,  SASAKI TOSHIHIRO

    IPC: B32B27/36 ,  C08J5/18 ,  C08L67/02 ,  G11B5/73 ,  G11B5/70

    Abstract: According to the present invention there is provided a polyester composition comprising an aromatic polyester having copolymerized therein a compound containing at least one sulfonic acid group or sulfonic acid metal salt group, and crosslinked polymer particles, preferably crosslinked polymer particles coated with a water-soluble polymer. The particles are incorporated in a slurried state into the polymer. There is also provided a laminate film containing the polymer with the particles thus incorporated therein. The polyester composition is superior in uniform dispersibility of the particles, re-agglomeratin does not occur in melt-storage for a long time, and films formed using the polyester composition are superior in traveling performance and abrasion resistance.

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