POLYMER COMPOSITIONS FOR EXTRUSION COATING

The present invention relates to a polymer composition suitable to be used in extrusion coated articles as a heat sealable layer. The polymer composition comprises 10 to 60 wt-% of low density polyethylene and 90 to 40 wt-% of a plastomer, wherein the low density polyethylene has melt flow rate (MFR...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Peltovuori, Mikko, Nummila-Pakarinen, Auli
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a polymer composition suitable to be used in extrusion coated articles as a heat sealable layer. The polymer composition comprises 10 to 60 wt-% of low density polyethylene and 90 to 40 wt-% of a plastomer, wherein the low density polyethylene has melt flow rate (MFR 2 ), measured according to ISO1133 (190 °C, 2,16 kg load) of 2,5 to 10 kg/10min, density 920 kg/m 3 or less, and the plastomer is an ethylene copolymer with at least one ±- olefin comonomer of 4 to 10 C-atoms, and has a density of 880 to 915 kg/m3. The invention relates also to the extrusion coated article and preparation thereof, the article comprising a substrate layer, at least one heat sealable layer and optionally at least one additional layer, wherein the at least one heat sealable layer is located on at least one surface of the extrusion coated article.