| 摘要 |
The present invention provides a fluorocopolymer capable of giving electric wires excellent in electric characteristics even when it is used in high-speed electric wire covering molding. The present invention is a fluorocopolymer comprising tetrafluoroethylene [TFE]-derived copolymerized units and hexafluoropropylene [HFP]-derived copolymerized units, which has a following characteristics (a) and (b). (a) A thermal melting curve obtained by primary heating in differential scanning calorimetry shows a melting point within the range of 240 to 280° C. and a melting point peak portion area accounts for at least 60% of heats of fugion area. (b) The product of a MFR (g/10 minutes) and a resin pressure (MPa) is not larger than 40.
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