TETRAFLUORETHYLEN/HEXAFLUORPROPYLEN-COPOLYMERER, SOM INDBEFATTER PERFLUORALKOXYALKYLGRUPPER SOM VEDHÆNG OG FREMGANGSMÅDER TIL FREMGANGSMÅDER TIL FREMSTILLING OG ANVENDELSE HERAF

TETRAFLUORETHYLEN/HEXAFLUORPROPYLEN-COPOLYMERER, SOM INDBEFATTER PERFLUORALKOXYALKYLGRUPPER SOM VEDHÆNG OG FREMGANGSMÅDER TIL FREMGANGSMÅDER TIL FREMSTILLING OG ANVENDELSE HERAF

A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally i...

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Bibliographische Detailangaben
Hauptverfasser: LOCHHAAS, Kai Helmut, DUCHESNE, Denis, SCHROOTEN, Jens, ZIPPLIES, Tilman C, HINTZER, Klaus, NELSON, Per M, WEILANDT, Karl D, KASPAR, Harald
Format: Patent
Sprache:dan
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more -O- groups, n is from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has up to 50 unstable end groups per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.