NON-ORIENTED FILM, LAMINATED BODY, AND PACKAGE
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United States of America
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Apr 10, 2025
app pub date -
Jan 25, 2023
filing date -
Jan 25, 2023
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Abstract
The present invention relates to a non-oriented film, a laminated body, and a package, the non-oriented film has a sealant layer composed of a resin composition including a propylene-based polymer (A), a 1-butene/α-olefin copolymer (B), and a propylene/α-olefin copolymer (C) in predetermined fractions and a substrate layer: the propylene-based polymer (A) has a melting point (Tm) measured by differential scanning calorimetry (DSC) of 120° C. or higher and 170° C. or lower; the copolymer (B) has a melting point measured by DSC of lower than 120° C. and contains 51 to 99 mol % of a 1-butene-derived constitutional unit and 1 to 49 mol % of an α-olefin-derived constitutional unit; the copolymer (C) has a melting point measured by DSC of lower than 120° C. and contains 51 to 95 mol % of a propylene-derived constitutional unit and 5 to 49 mol % of an α-olefin-derived constitutional unit.
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