High Moisture Barrier Coextruded Blown Film and Laminate and Package Made Therefrom
    8.
    发明申请
    High Moisture Barrier Coextruded Blown Film and Laminate and Package Made Therefrom 审中-公开
    高防潮膜共挤吹膜和层压板和包装

    公开(公告)号:US20150251814A1

    公开(公告)日:2015-09-10

    申请号:US14198714

    申请日:2014-03-06

    Applicant: Cryovac, Inc.

    Abstract: A coextruded multilayer blown film includes a core layer including a blend of ethylene vinyl alcohol copolymer and an active oxygen barrier composition including a blend of a thermoplastic resin having carbon-carbon double bonds substantially in its main chain, a transition metal salt, and an oxygen barrier polymer; two intermediate layers each including polyamide; a first outer layer including high density polyethylene; a second outer layer including olefinic polymer; and two tie layers each adhering an intermediate layer to the first and second outer layers respectively; wherein from 20% to 65% by weight of the coextruded multilayer blown film is made up of high density polyethylene. A package includes a food product in a hermetic pouch made from the coextruded film, optionally adhered to a PET film, such as a printed, or trap-printed PET film, to form a laminate, the pouch having a longitudinal seal and transverse heat seals.

    Abstract translation: 共挤出的多层吹塑薄膜包括包含乙烯乙烯醇共聚物和活性氧阻隔组合物的共混物的核心层,该活性氧阻隔组合物包括具有基本上在其主链上的碳 - 碳双键的热塑性树脂,过渡金属盐和氧 阻隔聚合物; 两个中间层,每个包括聚酰胺; 包括高密度聚乙烯的第一外层; 包含烯属聚合物的第二外层; 和两个粘结层,每个粘结层分别将中间层粘合到第一和第二外层; 共挤出的多层吹塑薄膜的20〜65重量%由高密度聚乙烯构成。 包装包括在由共挤出膜制成的密封袋中的食品,任选地粘附到PET膜上,例如印刷或陷印PET膜,以形成层压体,该袋具有纵向密封和横向热封 。

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