LAMINATE

An object of the present invention is to provide a laminate containing a propylene polymer as a main component, which is excellent in low-temperature heat-sealability and heat-seal strength, and has a controlled peeling mode with high peeling energy, and the present invention relates to a sealant fi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: EGAWA Makoto, KAMIYA Nozomi, HOYA Hiroshi, MIZUMA Takahiro, MORIWAKI Ryoji, KAI Yuki, SHIOZAKI Nao
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An object of the present invention is to provide a laminate containing a propylene polymer as a main component, which is excellent in low-temperature heat-sealability and heat-seal strength, and has a controlled peeling mode with high peeling energy, and the present invention relates to a sealant film including a heat-seal layer and an adjacent layer adjacent to the heat-seal layer, wherein the sealant film satisfies the following requirement (1), the heat-seal layer contains an olefin polymer (B) satisfying the following requirement (2) and a propylene polymer (A) satisfying the following requirement (3), and the adjacent layer contains 1 to 70% by mass of the propylene polymer (A) satisfying the following requirement (3) and 30 to 99% by mass of the olefin polymer (B) satisfying the following requirement (2), and contains 0 to 70% by mass of a propylene polymer (B2) in the olefin polymer (B), provided that (A) + (B) = 100% by mass,requirement (1): the sealant film is a stretched film or a non-stretched film,requirement (2): a melting point is less than 120°C or is not observed, andrequirement (3): a melting point is 121°C or more and 170°C or less.