Paper-like and thermo-formable multilayer barrier film

A paper-like multilayer barrier film comprises a filled polypropylene layer and several unfilled layers. The filled layer contains 40-75% by wt. of inorganic fillers, forms one of the two outside layers of the film, and has a thickness of 340 m. The unfilled layers include a barrier layer, a sealing...

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Bibliographische Detailangaben
Hauptverfasser:	REINERS ULRICH, JARUND ERIK, LINNE LEIF
Format:	Patent
Sprache:	eng
Schlagworte:	CONVEYING 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 MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS PACKING PERFORMING OPERATIONS STORING TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	A paper-like multilayer barrier film comprises a filled polypropylene layer and several unfilled layers. The filled layer contains 40-75% by wt. of inorganic fillers, forms one of the two outside layers of the film, and has a thickness of 340 m. The unfilled layers include a barrier layer, a sealing layer, and optionally at least one adhesive layer. The ratio of the total thickness of the unfilled layers to the thickness of the filled layer is in the range of 1:8 to 1: 1.2.