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    Polyester Composition and Film Made Therefrom
    12.
    发明专利
    Polyester Composition and Film Made Therefrom 未知

    公开(公告)号：CA2127702A1

    公开(公告)日：1994-05-26

    申请号：CA2127702

    申请日：1993-11-10

    Applicant: TORAY INDUSTRIES

    Inventor： KAGAMI NOBUYUKI ,  AOYAMA MASATOSHI ,  SUZUKI MASARU ,  OSHIMA KEISUKE

    IPC: C08J5/18 ,  C08L67/02

    Abstract: This invention relates to a polyester composition containing particles of a cross-linked polymer having an ester bond in the principal chain. These particles have excellent affinity for polyester. Accordingly, in a film molded from polyester containing these particles, the particles hardly come off during a high-speed travelling of the film, and flaws ascribed to the particles also hardly occur on the film surface. Therefore, the deterioration of a film due to the occurrence of white powder thereon which is ascribed to the falling of the particles, which has posed problems when various kinds of particles were added, and due to the flaws on a magnetic surface can be prevented. Moreover, the contamination of the film manufacturing processes can be prevented, and the film thus obtained can be used suitably as, especially, magnetic tape.

    14.
    发明专利
    未知

    公开(公告)号：DE69815016T2

    公开(公告)日：2004-03-18

    申请号：DE69815016

    申请日：1998-03-24

    Applicant: TORAY INDUSTRIES

    Inventor： AOYAMA MASATOSHI ,  TSUTSUMI KENICHI ,  UCHIDA MINORU

    IPC: C08G63/82 ,  C08G63/83 ,  C08G63/84

    Abstract: The present invention relates to a polyester polymerization catalyst, comprising a solution containing an aluminum compound and an alkali compound, with water or an organic solvent or a mixture consisting of water and an organic solvent as the medium, a production method thereof, and a polyester production method, in which the product obtained by the esterification reaction or ester interchange reaction between an aromatic dicarboxylic acid or any of its ester forming derivative and a diol is polycondensed, to produce a polyester, comprising the use of said polymerization catalyst containing an aluminum compound. The present invention can provide a polyester excellent in processability and can overcome such problems as spinneret contamination, filtration pressure rise, filament breaking, film breaking and foreign matter production in the production process of products such as fibers, films, resins and bottles.

    15.
    发明专利
    未知

    公开(公告)号：DE69331627D1

    公开(公告)日：2002-04-04

    申请号：DE69331627

    申请日：1993-11-10

    Applicant: TORAY INDUSTRIES

    Inventor： KAGAMI NOBUYUKI ,  AOYAMA MASATOSHI ,  SUZUKI MASARU ,  OSHIMA KEISUKE

    IPC: C08J5/18 ,  C08L67/02 ,  B32B27/36

    Abstract: This invention relates to a polyester composition containing particles of a cross-linked polymer having an ester bond in the principal chain. These particles have excellent affinity for polyester. Accordingly, in a film molded from polyester containing these particles, the particles hardly come off during a high-speed travelling of the film, and flaws ascribed to the particles also hardly occur on the film surface. Therefore, the deterioration of a film due to the occurrence of white powder thereon which is ascribed to the falling of the particles, which has posed problems when various kinds of particles were added, and due to the flaws on a magnetic surface can be prevented. Moreover, the contamination of the film manufacturing processes can be prevented, and the film thus obtained can be used suitably as, especially, magnetic tape.

    CATALYST FOR PRODUCING POLYESTER, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR PRODUCING POLYESTER BY USING THE SAME
    16.
    发明专利
    CATALYST FOR PRODUCING POLYESTER, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR PRODUCING POLYESTER BY USING THE SAME 未知

    公开(公告)号：CA2253515A1

    公开(公告)日：1998-10-01

    申请号：CA2253515

    申请日：1998-03-24

    Applicant: TORAY INDUSTRIES

    Inventor： TSUTSUMI KENICHI ,  UCHIDA MINORU ,  AOYAMA MASATOSHI

    IPC: C08G63/82 ,  C08G63/83 ,  C08G63/84

    Abstract: A polymerization catalyst for polyester production which is a solution of solutes comprising an aluminum compound and an alkali compound in water, an organic solvent, or a mixture of both; and a process for producing a polyester which comprises esterifying or transesterifying an aromatic dicarboxylic acid or an ester-forming derivative thereof with a diol or an ester-forming derivative thereof and condensation-polymerizing the resultant reaction product, characterized by using the polymerization catalyst containing an aluminum compound. The catalyst can yield a polyester having excellent moldability and being usable for producing moldings such as fibers, films, resins, bottles, etc., without posing problems such as nozzle fouling, filtering pressure increase, thread breakage, film breakage, and defects caused by foreign substances.

    BIAXIALLY ORIENTED FILM
    17.
    发明专利
    BIAXIALLY ORIENTED FILM 未知

    公开(公告)号：CA2103840A1

    公开(公告)日：1994-02-13

    申请号：CA2103840

    申请日：1993-08-11

    Applicant: TORAY INDUSTRIES

    Inventor： OKAZAKI IWAO ,  KIMURA MASAHIRO ,  AOYAMA MASATOSHI ,  SUZUKI MASARU ,  ABE KOICHI ,  NAKAMORI YUKARI ,  MINAMIZAWA HIDEHITO ,  OKAMOTO KATSUYA ,  TANAKA HIROYUKI

    IPC: B32B27/20 ,  C08J5/18 ,  G11B5/73 ,  G11B5/738 ,  B29C55/26 ,  C08L67/02 ,  B32B5/16 ,  B32B27/36

    Abstract: Disclosed is a biaxially oriented film and a laminated film containing specified organic particles at a content of 0.001 to 20% by weight. The strength when deformed by 10% (S10) of the organic particles is in the range of 3 to 30 kgf/mm2, the thermal decomposition temperature for causing 10% loss in weight thereof is not lower than 350 .degree.C . The weight average diameter thereof is in the range of 0.005 to 5 .mu. m. Since the organic particles have a good affinity with the matrix resin of the film and a good thermal resistance and the hardness of the particles is appropriate, desired protrusions hardly chipped and having an appropriate hardness for hardly scratching a magneticsurface can be formed on a film surface easily and uniformly. Therefore, a film excellent in abrasion resistance and scratch resistance at a high running speed and excellent in running durability can be obtained, which is useful particularly as a base film of a magnetic tape.

    19.
    发明专利
    未知

    公开(公告)号：DE69637737D1

    公开(公告)日：2008-12-18

    申请号：DE69637737

    申请日：1996-04-11

    Applicant: TORAY INDUSTRIES

    Inventor： AOYAMA MASATOSHI ,  KOJIMA HIROJI ,  SUZUKI MASARU

    IPC: C08L67/02 ,  B32B27/36 ,  C08J5/18 ,  C08K3/34

    Abstract: A polyester composition comprising 0.005 to 10 % by weight of compound oxide particles having a volume average particle diameter of 0.005 to 2 mu m and composed mainly of silicon (Si), aluminium (Al) and at least one alkali metal (M), wherein the contents of the silicon, aluminium and alkali metal satisfy the following requirements: 10 wt.%

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