MULTI-LAYER HEAT-SHRINKABLE PACKAGING FILM CONTAINING ETHYLENE-PROPYLENE COPOLYMER

The multi-layer polyolefin shrink film of this invention provides a unique combination of shrink tension, optical clarity, cuttability, sealability, shrink temperature range, and tear resistance which is highly desirable for many packaging applications. The preferred film has three layers in which t...

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Bibliographische Detailangaben
1. Verfasser:	MUELLER, W. B
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The multi-layer polyolefin shrink film of this invention provides a unique combination of shrink tension, optical clarity, cuttability, sealability, shrink temperature range, and tear resistance which is highly desirable for many packaging applications. The preferred film has three layers in which the core layer comprises an ethylene-vinyl acetate copolymer blended with an ethylene-propylene copolymer and each surface layer comprises an ethylene-propylene copolymer.