Hydrolytically stable pentaerythritol diphosphites

A class of hydrolytically stable bis(aralkylphenyl)pentaerythritol diphosphites is disclosed, which is suitable as antioxidant additives in polyolefins, particularly, in polypropylene. The diphosphites are of low volatility, have a high thermal decomposition temperature and resist yellowing when ble...

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Hauptverfasser:	STEVENSON DONALD R, MCROWE ARTHUR W, NGUYEN DUONG N
Format:	Patent
Sprache:	eng ; slo
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A class of hydrolytically stable bis(aralkylphenyl)pentaerythritol diphosphites is disclosed, which is suitable as antioxidant additives in polyolefins, particularly, in polypropylene. The diphosphites are of low volatility, have a high thermal decomposition temperature and resist yellowing when blended into a polyolefin base. A preferred diphosphite is bis(2,4-dicumylphenyl)pentaerythritol diphosphite. Hydrolyticky stabilné bispentaerytritoldifosforitany, do ktorých skupiny patrí zlúčenina vzorca (V), ktoré sú vhodné ako antioxidačné aditíva do polyolefínov, hlavne do polypropylénu. Tieto difosforitany majú malú prchavosť, vysokú teplotu rozkladu a odolnosť proti žltnutiu pri zmiešaní s polyolefínovou základnou hmotou.ŕ