FLUOROCARBON POLYMER COMPOSITION

A composition for radiation crosslinking is based on a fluorocarbon polymer (such as tefzel) that can be melt fabricated and has a melting point or softening range above 200 DEG C. A polyunsaturated crosslinking promoter (such as TAIC) is used, and an anti-oxidant (such as hydroquinone) is added in...

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Bibliographische Detailangaben
Hauptverfasser:	BLYTHE, ANTHONY REGINALD, YADDEHIGE, SENA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON CONDUCTORS ELECTRICITY INSULATORS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A composition for radiation crosslinking is based on a fluorocarbon polymer (such as tefzel) that can be melt fabricated and has a melting point or softening range above 200 DEG C. A polyunsaturated crosslinking promoter (such as TAIC) is used, and an anti-oxidant (such as hydroquinone) is added in an amount sufficient to substantially prevent any oxidative polymerisation of the promoter at temperatures at least up to the melting point/softening range of the polymer for a minimum of 15 mins. Surprisingly the quantities of anti-oxidant required to substantially eliminate oxidative polymerisation do not prevent radiation crosslinking of the composition nor seriously reduce its efficiency.