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    MULTI-LAYER FILM, PACKAGING MATERIAL, AND PACKAGE
    49.
    发明公开
    MULTI-LAYER FILM, PACKAGING MATERIAL, AND PACKAGE 审中-实审

    公开(公告)号：EP4397489A1

    公开(公告)日：2024-07-10

    申请号：EP22864166.8

    申请日：2022-08-03

    申请人： TOPPAN INC.

    发明人： OOKI Tomoko ,  HAMADA Daisuke

    IPC分类号： B32B27/32 ,  B65D65/02

    CPC分类号： B32B27/32 ,  B65D65/02

    摘要： The present disclosure relates to a multilayer film having, in this order: a first outer layer serving as a heat-seal layer and containing a propylene homopolymer (A), a propylene-ethylene random copolymer (B), and an anti-blocking agent (C); an inner layer containing a propylene-ethylene block copolymer (D) and an ethylene-propylene copolymer elastomer (E); and a second outer layer containing the propylene homopolymer (A) and the propylene-ethylene random copolymer (B). The content of the component (C) is 0.5 to 3.0 parts by mass relative to 100 parts by mass of the components (A) and (B) together, and the component (C) includes, relative to a total mass of the component (C), 45 to 75% by mass of particles (C1) with an average particle diameter of 1.0 to 4.0 µm and 55 to 25% by mass of particles (C2) with an average particle diameter greater than 4.0 µm and equal to or smaller than 7.0 µm.