Multilayer films for use in flexible packaging materials

A multilayer film includes a first film including at least a first layer and a second layer, and a second film extrusion coated onto the first layer of the first film. The multilayer film is free of adhesives. The first layer of the first film includes a first high density polyethylene (HDPE) having...

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Bibliographische Detailangaben
Hauptverfasser:	OLSZYNSKI, PRZEMEK, ARROYO VILLAN, MARIA ISABEL
Format:	Patent
Sprache:	chi ; eng
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:	A multilayer film includes a first film including at least a first layer and a second layer, and a second film extrusion coated onto the first layer of the first film. The multilayer film is free of adhesives. The first layer of the first film includes a first high density polyethylene (HDPE) having a density of from 0.935 to 0.965 g/cc and a melt index I2of 0.3 to 2.0 and the second layer of the first film includes a polyolefin plastomer having a density of from 0.885 to 0.910 g/cc. The second film includes a second high density polyethylene (HDPE) having a density of from 0.945 to 0.965 g/cc and a melt index I2of 4.0 to 20.0. The second film has a gloss of from 65% to 95% at 60° according to ASTM D2457.