Laminated film

The present invention addresses the problem of providing an olefin polymer film which can be produced in a relatively simple manner at low cost, and which has high levels of preferable properties as a film, such as recoverability, mechanical strength, and extensibility. This problem is solved by a l...

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Bibliographische Detailangaben
Hauptverfasser:	HARANO IZUMI, MORITA RYOSUKE, WAKAKI HIROYUKI, TAMURA TAKUYA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR 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 HANDLING THIN OR FILAMENTARY MATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention addresses the problem of providing an olefin polymer film which can be produced in a relatively simple manner at low cost, and which has high levels of preferable properties as a film, such as recoverability, mechanical strength, and extensibility. This problem is solved by a laminated film having an intermediate layer (A) containing an ethylene polymer and a skin layer (B) containing a propylene polymer formed on one or both surfaces of the intermediate layer (A), the laminated film having a specific surface area of at least one surface area in a DSC curve obtained by repeating temperature increase and temperature decrease twice at 10 DEG C/min, and having a specific surface area of at least one surface area in the DSC curve, the specific surface area being less than the specific surface area in the DSC curve. The half width of the crystallization peak observed at 110 DEG C to 125 DEG C in the first cooling stroke is greater than 3.0 DEG C, and the melting point Tm1 is 135 DEG C to 165