BIAXIALLY ORIENTED LAMINATED POLYPROPYLENE FILM

    公开(公告)号:US20240209167A1

    公开(公告)日:2024-06-27

    申请号:US18577439

    申请日:2022-06-21

    申请人: TOYOBO CO., LTD.

    IPC分类号: C08J5/18

    CPC分类号: C08J5/18 C08J2323/12

    摘要: The invention provides a biaxially oriented laminated polypropylene film including base layer A and surface layer B, each of which comprises a resin composition containing a polypropylene resin as a main component, wherein a thickness of base layer A with respect to a whole thickness of the film is 70-98%, a polypropylene resin comprised in base layer A has a mesopentad fraction of 97.0-99.9%, a polypropylene resin comprised in surface layer B has a mesopentad fraction of 80.0-96.5%, a stress at 5% elongation F5 in a longitudinal direction of the film is 35 MPa or more, a stress at 5% elongation F5 in a width direction of the film is 95 MPa or more, a heat shrinkage rate at 150° C. in the longitudinal direction of the film is 6.0% or less, and a heat shrinkage rate at 150° C. in the width direction of the film is 5.0% or less.

    SEALANT FILM
    18.
    发明公开
    SEALANT FILM 审中-公开

    公开(公告)号:US20240026045A1

    公开(公告)日:2024-01-25

    申请号:US18041966

    申请日:2021-08-11

    申请人: TOYOBO CO., LTD.

    发明人: Hidetoshi FUJINO

    IPC分类号: C08F210/06 C08K3/36 C08J5/18

    摘要: The invention provides a sealant film that enables easy removal of even viscous contents from a packaging bag, has sufficient heat-sealability, and high easy-peelability, as well as a packaging bag comprising the film. The sealant film contains a sealing layer including a resin composition comprising (a) a polypropylene resin and (b) a silicon containing polyolefin resin, wherein (1) the ratio of a sealing strength at a sealing temperature of 200° C. and a sealing pressure of 0.4 MPa to the sealing strength at a sealing temperature of 150° C. and a sealing pressure of 0.4 MPa is 2 or less, and (2) the sealing strength at a sealing temperature of 150° C. and a sealing pressure of 0.6 MPa is 40 N/15 mm or less.

    TRANSPARENT GAS BARRIER FILM
    19.
    发明公开

    公开(公告)号:US20240017529A1

    公开(公告)日:2024-01-18

    申请号:US18255050

    申请日:2021-11-24

    申请人: TOYOBO CO., LTD.

    发明人: Kiyoshi ISEKI

    摘要: An object of the present invention is to provide an inexpensive transparent barrier film which uses a plastic film prepared using a recycled resin of PET bottles in consideration of the environment and has excellent acid resistance. A transparent gas barrier film includes an aluminum oxide layer mainly composed of aluminum oxide on at least one surface of a substrate polyester film. The absorption coefficient immediately after vapor-deposition of the aluminum oxide layer is less than 0.03 nm−1. The vapor-deposition film thickness of the aluminum oxide layer is 6 nm or more and 10 nm or less. The substrate polyester film is a biaxially stretched polyester film containing 50% by weight or more of a polyester resin obtained by recycling PET bottles. A content of isophthalic acid, an intrinsic viscosity, a heat shrinkage rate, lamination strength, and thickness unevenness are within predetermined ranges.

    REELING DEVICE AND REELING METHOD
    20.
    发明公开

    公开(公告)号:US20230391579A1

    公开(公告)日:2023-12-07

    申请号:US18036107

    申请日:2021-10-29

    申请人: TOYOBO CO., LTD.

    IPC分类号: B65H55/04 B65H57/00 B65H54/02

    摘要: A reeling device includes: a left spool body; a right spool body; and a yarn transfer mechanism. A first rotation axis of the left spool body and a second rotation axis of the right spool body are parallel to each other, and a position of the left spool body around which the yarn-shaped body is to be wound and a position of the right spool body around which the yarn-shaped body is to be wound are arranged side by side on a first imaginary plane orthogonal to the first rotation axis and the second rotation axis. After a hollow yarn collection is formed in the left spool body, a yarn-shaped body leading portion of the yarn transfer mechanism moves the yarn-shaped body from the left spool body to the right spool body along the first imaginary plane.