ENVIRONMENTALLY FRIENDLY HEAT-SHRINKABLE MULTILAYER FILM

An environmentally friendly heat-shrinkable multilayer film composed of alternating layers of a first resin layer comprising an aliphatic polycarbonate and a second resin layer comprising a biodegradable aliphatic polyester, which has improved properties in terms of heat-shrinkability, thermal resis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEE, DEUK-YOUNG, LEE, DON CHUL, KIM, KYUNG YOUN, KIM, SANG IL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ADVERTISING 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 CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION GENERAL PROCESSES OF COMPOUNDING HANDLING THIN OR FILAMENTARY MATERIAL LABELS OR NAME-PLATES 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 PHYSICS SEALS SIGNS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	An environmentally friendly heat-shrinkable multilayer film composed of alternating layers of a first resin layer comprising an aliphatic polycarbonate and a second resin layer comprising a biodegradable aliphatic polyester, which has improved properties in terms of heat-shrinkability, thermal resistance, biodegradability, shrinkage stress, frictional coefficient and haze, and thus useful as a heat-shrinkable label or wrapping material for food products. L'invention concerne un film multicouche thermo-rétractable écologique composé de couches alternantes constituées d'une première couche de résine contenant un polycarbonate aliphatique et d'une deuxième couche de résine contenant un polyester aliphatique biodégradable, ledit film ayant des propriétés améliorées en termes de thermo-rétractabilité, de stabilité à la chaleur, de biodégradabilité, de tension de retrait, de coefficient de cisaillement et de turbidité, et étant ainsi adapté comme étiquette thermo-rétractable ou matériau d'emballage pour les produits alimentaires.