POLYPROPYLENE EXTRUSION COATING RESINS AND PROCESS FOR THE PRODUCTION THEREOF

Novel polypropylene compositions comprising up to 100 mol % propylene having a melt flow rate of 20 to 150 g/min at 230 DEG C and a total xylene solubles content between 4 and 35 wt. % are disclosed. In addition, a process for the production of the polypropylene composition in gas phase with particu...

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Bibliographische Detailangaben
Hauptverfasser:	SEEGER, HORST, KURT, GLOVER, JAMES, HARRELL, VANDERBILT, JEFFREY, JAMES
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Novel polypropylene compositions comprising up to 100 mol % propylene having a melt flow rate of 20 to 150 g/min at 230 DEG C and a total xylene solubles content between 4 and 35 wt. % are disclosed. In addition, a process for the production of the polypropylene composition in gas phase with particular aluminum/titanium ratios and cocatalyst/electron donor ratios is disclosed as well as a process for extrusion coating the polypropylene compositions and the laminated articles prepared thereby. On décrit de nouvelles compositions de polypropylène comprenant jusqu'à 100 % en moles de propylène et ayant une vitesse de fusion de 20 à 150 g/10 min. à 230 °C et une concentration totale de particules solubles de xylène comprise entre 4 et 35 % en poids. On décrit de plus une composition en phase gazeuse avec des taux particuliers d'aluminium/titane et des taux donneurs de cocatalyseur/élection, ainsi qu'un procédé de couchage par extrusion de compositions de polypropylène et d'articles stratifiés préparés par ce procédé.