STABILIZED POLYOLEFIN COMPOSITIONS COMPRISING BENZOFURANONES AND HINDERED AMINE LIGHT STABILIZERS

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus- containing benzofuranone compounds and iii) one or more hindered amine light stabilizers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by impro...

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Bibliographische Detailangaben
Hauptverfasser:	KING, III Roswell E, HOELZL Werner
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON METALLURGY ORGANIC CHEMISTRY 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:	Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus- containing benzofuranone compounds and iii) one or more hindered amine light stabilizers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture. Composiciones de poliolefina que comprenden i) una poliolefina. ii) uno o más compuestos de benzofuranona que contienen fósforo y iii)uno o más estabilizadores de luz de amina impedida que proporcionan excelente protección contra la decoloración y estabilidad térmica mejorada durante el procesamiento por fusión como se exhibe mediante una retención mejorada del peso molecular y el mantenimiento de la arquitectura molecular polimérica.