ETHYLENE COPOLYMER COMPOSITION AND ITS USE

PROBLEM TO BE SOLVED: To obtain a film capable of being processed at a high temperature, excellent in strength, external appearance and transparency and giving out little odor by admixing a composite metal compound having a hydroxy group and a carbonate anion with an ethylene/vinyl acetate copolymer...

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Bibliographische Detailangaben
Hauptverfasser:	DATE KENICHI, FUKADA TORU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING 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 PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a film capable of being processed at a high temperature, excellent in strength, external appearance and transparency and giving out little odor by admixing a composite metal compound having a hydroxy group and a carbonate anion with an ethylene/vinyl acetate copolymer having a specific melt flow rate. SOLUTION: With an ethylene/vinyl acetate copolymer having a vinyl acetate content of 12-45 wt.% and a melt flow rate at 190 deg.C and a load of 2,160 g of 0.1-15 g/10 min is incorporated a composite metal compound bearing a hydroxy group and a carbonate anion in an amount of 0.1-3 wt.% to give an ethylene copolymer composition. This composition is suitable for a film or a sheet and can be used not only as a single-layer product but also in lamination with various materials. Among laminated products, it is suitably used for a three-layered co-extrusion laminated film or sheet having an interlayer comprising an ethylene copolymer sandwiched by polypropylene layers. Most desirably, the metal for the composite metal compounds is a combination of Mg with Al or a combination of Li with Al.