POLYOLEFIN COMPOSITION

PURPOSE:To improve stability during processing under high-temperature conditions and to improve thermal aging resistance during use, by blending a polyolefin with specified antioxidants in combination. CONSTITUTION:100pts.wt. polyolefin is blended with 0.005-1pt.wt. hindered phenolic antioxidant hav...

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Hauptverfasser:	OSEGAKI KIMIHO, HATTORI SATORU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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:	PURPOSE:To improve stability during processing under high-temperature conditions and to improve thermal aging resistance during use, by blending a polyolefin with specified antioxidants in combination. CONSTITUTION:100pts.wt. polyolefin is blended with 0.005-1pt.wt. hindered phenolic antioxidant having an MW of not lower than 500, 0.05-1pt.wt. hindered phenolic antioxidant having an MW of lower than 500, or 0.01-1pt.wt. phosphite or phosphonite antioxidant other than the following component, and 0.01-1pt.wt. phosphite of formula I or II (wherein R1 is a 3-8C alkyl, a cycloalkyl or an arom. group; R2 is a 1-30C alkyl, a cycloalkyl, an arom, group or H; and R1 and R2 may be the same or different groups).