BARRIER FILM AND BARRIER PACKAGING MATERIAL

    公开(公告)号:US20220288907A1

    公开(公告)日:2022-09-15

    申请号:US17633538

    申请日:2020-07-02

    Applicant: TOPPAN INC.

    Abstract: A barrier film according to the present disclosure has a base material film including a polyolefin-based resin; an inorganic oxide layer provided on one surface of the base material film; and a deformation-withstanding barrier coat layer provided on the inorganic oxide layer to be in contact therewith, wherein the deformation-withstanding barrier coat layer includes a hydroxyl group-containing polymer compound and water-swellable mica, and when the total mass of the deformation-withstanding barrier coat layer is taken as 100 parts by mass, the content of the water-swellable mica in the deformation-withstanding barrier coat layer is 5 parts by mass to 35 parts by mass.

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