| 摘要 |
PURPOSE:A copolymer, obtained by copolymerizing tetrafluoroethylene with a terminal branched fluoroalkyl perfluorovinyl ether, having good moldability and high heat resistance and useful for electronic apparatus parts, chemical industrial parts, etc. CONSTITUTION:A copolymer, obtained by copolymerizing tetrafluoroethylene with a terminal branched fluoroalkyl perfluorovinyl ether (hereinafter abbreviated to PFAVE, preferably a compound expressed by formula II and having 0.5-3mol%, preferably 1-2mol% content of the above-mentioned PFAVE and >=0.5mm<3>/sec, preferably 2-30mm<3>/sec volume flow rate. EFFECT:This copolymer is capable of attaining a strength close to 100kg/cm<2> with a small amount of PFAVE and is economical. |
