Transparent biaxially-oriented thin crystallisable thermoplastic films containing UV stabilizer and optical brightener to impart sufficient UV stability to allow outdoor uses

A transparent biaxially-oriented 1-500 mu m film based mainly on a crystallisable thermoplast also contains a UV stabilizer and an optical brightener. An Independent claim is also included for production of the film by melt extrusion of the composition onto a cooled roll, followed by biaxial stretch...

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Bibliographische Detailangaben
Hauptverfasser:	MURSCHALL, URSULA, CRASS, GUENTHER, BEWER, GUENTER, OBERLAENDER, KLAUS
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON 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 THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	A transparent biaxially-oriented 1-500 mu m film based mainly on a crystallisable thermoplast also contains a UV stabilizer and an optical brightener. An Independent claim is also included for production of the film by melt extrusion of the composition onto a cooled roll, followed by biaxial stretching and winding up. Die Erfindung betrifft eine transparente Folie, mit einer Dicke im Bereich von 1 bis 500 mum, die als Hauptbestandteil einen kristallierbaren Thermoplasten enthält, die dadurch gekennzeichnet ist, daß sie mindestens einen UV-Stabilisator als Lichtschutzmittel enthält, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung.