POLYOLEFIN-BASED FILM, LAMINATED BODY, PACKING MATERIAL, AND PACKED BODY

An object of the present invention to provide a polyolefin-based film that is excellent in structural stability against heat during vapor deposition and has favorable water vapor barrier properties and oxygen barrier properties against heat during heat sterilization treatment, particularly when used...

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Bibliographische Detailangaben
Hauptverfasser:	OHKURA, Masatoshi, IMANISHI, Yasuyuki, AONO, Haruki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING GENERAL PROCESSES OF COMPOUNDING HANDLING THIN OR FILAMENTARY MATERIAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	An object of the present invention to provide a polyolefin-based film that is excellent in structural stability against heat during vapor deposition and has favorable water vapor barrier properties and oxygen barrier properties against heat during heat sterilization treatment, particularly when used for packing applications. A polyolefin-based film includes at least one layer (layer A) containing a cycloolefin-based resin and a polypropylene-based resin, in which when a storage modulus in a main orientation axis direction at 50°C and 121°C, obtained at a frequency of 10 Hz in a dynamic viscoelasticity measurement, is E'50 (Pa) and E'121 (Pa), respectively, E'121/E'50 is more than 0.25 and is 0.99 or less, a thermal shrinkage rate in the main orientation axis direction is -2% or more and 10% or less at 150°C, and a tensile elongation in a direction orthogonal to a main orientation axis is 20% or more and 300% or less.