PELICULA DE POLIPROPILENO SELLABLE, BIAXIALMENTE ORIENTADA, CON PROPIEDADES DE BARRERA MEJORADAS

Película de polipropileno biaxialmente orientada, de varias capas, que comprende una capa de base y por lo menos una capa de revestimiento sellable, que contiene en su capa básica una combinación de resina y cera; caracterizada porque la capa de base contiene una resina con un peso molecular promedi...

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Bibliographische Detailangaben
Hauptverfasser:	ERNST, FRANK, SPEITH-HERFURTH, ANGELA, SCHUHMANN, DETLEF, HANSOHN, ROBERT
Format:	Patent
Sprache:	spa
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR 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 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 SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Película de polipropileno biaxialmente orientada, de varias capas, que comprende una capa de base y por lo menos una capa de revestimiento sellable, que contiene en su capa básica una combinación de resina y cera; caracterizada porque la capa de base contiene una resina con un peso molecular promedio de peso (Mw) de 600 a 1500; siendo la resina una resina de petróleo, estireno, resina de ciclopentadieno o de terpeno, y una cera con un peso molecular promedio de número (Mn) de 200 a 700, siendo en ello la cera una cera de polietileno parcial- o altamente cristalina y/o una cera de parafina.. The invention relates to a multi-layer, sealable biaxially oriented polypropylene film consisting of a base layer and at least one sealable covering layer. The base layer contains between 1 and 15 weight % of a resin with a mean molecular weight Mw of between 600 and 1,500 and between 1 and 6 weight % of a wax with a mean molecular weight Mn of between 200 and 700. The n-heptane insoluble part of the polypropylene of the base layer has a chain isotactic index of at least 95%, as measured by C-NMR spectroscopy. The invention also relates to a method for producing said film and to its use.