POLYPROPYLENE COMPOSITION HAVING INTUMESCENT FLAME RETARDANT AND IMPROVED UV STABILIZATION

The present invention relates to a polypropylene composition comprising a polymer of propylene, a halogen-free flame retardant containing nitrogen and phosphorus, a pigment and additives, wherein the additives comprise at least one hindered amine light stabilizer comprising NOR moieties (NOR-HALS) a...

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Bibliographische Detailangaben
Hauptverfasser:	COSTA, Francis Reny, STOCKREITER, Wolfgang, SCHÜTZ, Florian, GITSAS, Antonios, ROMANENKO, Yuliia
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The present invention relates to a polypropylene composition comprising a polymer of propylene, a halogen-free flame retardant containing nitrogen and phosphorus, a pigment and additives, wherein the additives comprise at least one hindered amine light stabilizer comprising NOR moieties (NOR-HALS) and at least one acid scavenger. The present invention is, furthermore, directed to an article comprising the polypropylene composition, and to the improvement of the UV stability of a polypropylene composition comprising a halogen-free flame retardant containing nitrogen and phosphorus. La présente invention concerne une composition de polypropylène comprenant un polymère de propylène, un retardateur de flamme exempt d'halogène contenant de l'azote et du phosphore, un pigment et des additifs, les additifs comprenant au moins un photostabilisant à amine encombrée comprenant des fractions NOR (NOR-HALS) et au moins un piégeur d'acide. La présente invention concerne en outre un article comprenant la composition de polypropylène, et l'amélioration de la stabilité aux UV d'une composition de polypropylène comprenant un retardateur de flamme exempt d'halogène contenant de l'azote et du phosphore.