Fluorinated terpolymer
AssigneeUnimatec Co., Ltd.
InventorsSatoshi Kurihara, Daisuke Fujihara, Takashi Enokida
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Abstract
A fluorine-containing terpolymer with distinguished transparency and strength at ordinary temperature and at elevated temperatures when heated, which comprises 20–98% by weight of tetrafluoroethylene, 1–40% by weight of perfluoro(ethyl vinyl ether) and 1–40% by weight of perfluoro(propyl vinyl ether) and has a specific melt viscosity of 0.1×103–110×103 Pa·s (372° C.). The fluorine-containing terpolymer preferably has a comonomer ratio of perfluoro(propyl vinyl ether) to perfluoro(ethyl vinyl ether) of 1.0 or more by weight.
Claims6
A fluorine-containing terpolymer, which comprises 20–98% by weight of tetrafluoroethylene, 1–40% by weight of perfluoro(ethyl vinyl ether) and 1–40% by weight of perfluoro(propyl vinyl ether), wherein a comonomer ratio of the perfluoro(propyl vinyl ether) to the perfluoro(ethyl vinyl ether) by weight is 1.0or more, said fluorine-containing terpolymer having specific melt viscosity of 0.1×103–110×103 Pa·s (372° C.).
Dependencies are inferred from the claim text.