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    LAMINATED FILM
    2.
    发明公开
    LAMINATED FILM 审中-公开

    公开(公告)号：US20230321954A1

    公开(公告)日：2023-10-12

    申请号：US17904258

    申请日：2021-02-16

    申请人： TOYOBO CO., LTD.

    发明人： Atsushi YAMAZAKI ,  Yuya YAMAGUCHI

    IPC分类号： B32B15/09 ,  B32B15/20 ,  B32B15/095

    CPC分类号： B32B15/09 ,  B32B15/20 ,  B32B2272/00 ,  B32B2250/03 ,  B32B2255/26 ,  B32B15/095

    摘要： The laminated film comprising a coating layer and an inorganic thin film layer on one surface of a substrate film, wherein the laminated film satisfies the following requirements (a) to (f):



    (a) the substrate film contains 50% by weight or more and 95% by weight or less of a polyester resin recycled from PET bottles;
    (b) a surface hardness of an inorganic thin film layer surface of the laminated film is 120 N/mm2 or less;
    (c) the coating layer contains a resin having an oxazoline group or a carbodiimide group as a constituent component;
    (d) a content rate of an isophthalic acid component relative to a total dicarboxylic acid component in a whole polyester resin constituting the substrate film is 0.5 mol % or more and 5.0 mol % or less;
    (e) both a coefficient of static friction μs and a coefficient of dynamic friction μd of the inorganic thin film layer surface/an opposite surface of the laminated film are within a range of 0.20 to 0.40; and
    (f) an arithmetic average roughness Ra of the laminated film in a 2-μm square range is within a range of 2.0 to 6.0 nm.

    LAMINATED BODY
    5.
    发明申请
    LAMINATED BODY 有权

    公开(公告)号：US20220410546A1

    公开(公告)日：2022-12-29

    申请号：US17781567

    申请日：2020-11-25

    申请人： TOYOBO CO., LTD.

    发明人： Atsushi YAMAZAKI ,  Yukihiro NUMATA ,  Kyoko INAGAKI ,  Yuya YAMAGUCHI ,  Shintaro ISHIMARU

    IPC分类号： B32B27/08 ,  B32B7/12 ,  B32B27/36 ,  B32B27/40

    摘要： The invention provides a laminated body which contains an environmentally friendly recycled material, has a lamination constitution composed of substantially a single resin type mainly composed of polyester and having a low environmental load, and has required performances such as gas barrier properties, sealability, toughness, and transparency required for a packaging material.
    The laminated body is formed by laminating a polyester substrate film containing 50% by weight or more of a polyester resin recycled from PET bottles and a heat sealable resin layer in this order,
    wherein the substrate film is a laminated film including an inorganic thin film layer (A) and a protective layer (a) containing a urethane resin on one surface thereof, and
    the heat sealable resin layer is formed of a polyester-based resin mainly composed of ethylene terephthalate, and has a piercing strength of 10 N or more and a haze of 20% or less.

    LAMINATED BODY
    7.
    发明公开
    LAMINATED BODY 审中-公开

    公开(公告)号：US20230191763A1

    公开(公告)日：2023-06-22

    申请号：US17996067

    申请日：2021-04-07

    申请人： TOYOBO CO., LTD.

    发明人： Atsushi YAMAZAKI ,  Yuya YAMAGUCHI

    IPC分类号： B32B27/36 ,  B65D65/40

    CPC分类号： B32B27/36 ,  B65D65/40 ,  B32B27/32

    摘要： A laminated body obtained by laminating a sealant layer on one surface of a laminated film including an inorganic thin film layer on one surface of a substrate film and a protective layer on the inorganic thin film layer, wherein (a) the substrate film contains 10% by weight or less of a polyester resin recycled from PET bottles; (b) the protective layer of the laminated film contains a urethane resin, and surface free energy of a surface of the protective layer is 45 to 60 mN/m; (c) the laminated body has a lamination strength of 1.5 N/15 mm or more, and a lamination strength of 1.0 N/15 mm or less after being immersed in 1-methoxy-2-propanol at 40° C. for 72 hours; and (d) the laminated body has a lamination strength of 1.5 N/15 mm or more after a boiling sterilization treatment at 90° C. for 30 minutes.

    LAMINATED FILM
    8.
    发明申请
    LAMINATED FILM 有权

    公开(公告)号：US20220379589A1

    公开(公告)日：2022-12-01

    申请号：US17776801

    申请日：2020-11-10

    申请人： TOYOBO CO., LTD.

    发明人： Atsushi YAMAZAKI ,  Yukihiro NUMATA ,  Kyoko INAGAKI ,  Yuya YAMAGUCHI

    IPC分类号： B32B27/36 ,  B32B27/08 ,  B32B27/40 ,  B32B15/09 ,  B32B15/095 ,  B32B15/20

    摘要： The present invention provides an environment-responsive laminated film including an inorganic thin film layer and a protective layer in this order on a substrate film layer using a polyester resin recycled from PET bottles. The laminated film has excellent barrier properties and adhesiveness even after a severe wet heat treatment and has less deterioration in appearance of the film even after retorting. The laminated film comprises a substrate film; an inorganic thin film layer on at least one surface of the substrate film; and a protective layer containing a urethane resin on the inorganic thin film layer, wherein (a) the substrate film contains 50% by weight or more of a polyester resin recycled from PET bottles; (b) standard deviation of a haze after retorting the laminated film at 130° C. for 30 minutes is 0.5% or less; and (c) an adhesion amount of the protective layer is 0.5 g/m2 or less.