POLYAMIDE/COPOLYAMIDE-MISCHUNGEN ENTHALTENDE WÄRMESCHRUMPFBARE FOLIE

A process for producing a biaxially-oriented multilayer film, comprising: (a) extruding a tubular multilayer tape comprising: (i) a first outer layer comprising a polyolefin, (ii) a second, core layer comprising a polyamide blend comprising nylon 6 blended with at least about 5% by weight of copolya...

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Bibliographische Detailangaben
Hauptverfasser:	RAMESH, RAM K, AHLGREN, KELLY R
Format:	Patent
Sprache:	ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BUTCHERING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 HUMAN NECESSITIES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MEAT TREATMENT METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PROCESSING MEAT, POULTRY, OR FISH PROCESSING POULTRY OR FISH SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A process for producing a biaxially-oriented multilayer film, comprising: (a) extruding a tubular multilayer tape comprising: (i) a first outer layer comprising a polyolefin, (ii) a second, core layer comprising a polyamide blend comprising nylon 6 blended with at least about 5% by weight of copolyamide, (iii) a third layer which is a core layer comprising polyolefin or an oxygen-barrier layer comprising at least one member selected from ethylene/vinyl alcohol copolymer, polyvinylidene chloride copolymer and polyacrylonitrile, and (iv) a fourth, outer layer comprising a polyolefin; (b) inflating the tape so that the tape is biaxially oriented by stretching in a transverse direction and machine direction, so that a tubular multilayer film is formed.