ETHYLENE/TETRAFLUOROETHYLENE OR CHLOROTRIFLUOROETHYLENE COPOLYMER

PURPOSE:A copolymer whose high-temperature strength and elongation and stress cracking resistance are improved without detriment to its properties, containing ethylene, tetrafluoroethylene or chlorotrifluoroethylene and a specified fluorovinyl ether. CONSTITUTION:A copolymer containing ethylene, tet...

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Bibliographische Detailangaben
Hauptverfasser:	ASANO KOUZOU, ISHIWARI KAZUO, IHARA KIYOHIKO, NAKAGAWA SHINICHI, SOGABE TOSHIO
Format:	Patent
Sprache:	eng
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:	PURPOSE:A copolymer whose high-temperature strength and elongation and stress cracking resistance are improved without detriment to its properties, containing ethylene, tetrafluoroethylene or chlorotrifluoroethylene and a specified fluorovinyl ether. CONSTITUTION:A copolymer containing ethylene, tetrafluoroethylene or chlorotrifluoroethylene and a vinyl ether of the formula, wherein X is H, F or Cl and n is 1-10. Monomer contents are as follows. Namely, the molar ratio of ethylene to tetrafluoroethylene or chlorotrifluoroethylene is 40:60-60:40 and the vinyl content is 0.1-10mol%. The above copolymer can be produced by copolymerizing the above three kinds of monomers in the presence of a polymerization initiator (e.g., peroxide). Any polymerization systems can be used, but an aqueous suspension polymerization method is preferred.