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    • 6. 发明授权
    • Melt-processible thermoplastic fluoropolymers having improved processing characteristics and method of producing same
    • 具有改进的加工特性的可熔融加工的热塑性含氟聚合物及其制备方法
    • US06927265B2
    • 2005-08-09
    • US10774154
    • 2004-02-06
    • Harald KasparKlaus HintzerTilman ZippliesRalph Kaulbach
    • Harald KasparKlaus HintzerTilman ZippliesRalph Kaulbach
    • C08F214/18C09D127/12H01B3/44C08F114/18
    • H01B3/445C08F214/18C09D127/12
    • The present invention provides a fluoropolymer that is melt-processible and thermoplastic and that has a melting point between 100° C. and 320° C. The fluoropolymer is derived from (a) one or more gaseous fluorinated monomers, (b) one or more modifiers selected from (i) olefins having a bromine or iodine atom bonded to a carbon of the double bond of the olefin, (ii) olefins corresponding to formula (I): Xa2C═CXa—Rf—Br  (I) wherein each Xa independently represents hydrogen, fluorine, bromine, chlorine or iodine, Rf is a perfluoroalkylene group, typically having 1 to 8 carbon atoms, a perfluorooxyalkylene group or a perfluoropolyether group and (iii) mixtures thereof; and (c) optionally one or more comonomers selected from non-gaseous fluorinated monomers and non-fluorinated monomers. The resulting fluoropolymer has long chain branches. The invention further provides a method for making these polymers.
    • 本发明提供了可熔融加工和热塑性且熔点在100℃和320℃之间的含氟聚合物。该含氟聚合物衍生自(a)一种或多种气态氟化单体,(b)一种或多种 选自(i)具有与烯烃双键结合的溴或碘原子的烯烃的改性剂,(ii)对应于式(I)的烯烃:<?在线式描述=“在线式 “end =”lead“?> X C-CX -R 其中每个X a a独立地表示氢,氟,溴,氯或碘,R 1,R 2, 通常具有1至8个碳原子的全氟亚烷基,全氟代亚烷基或全氟聚醚基团,和(iii)它们的混合物; 和(c)任选的一种或多种选自非气态氟化单体和非氟化单体的共聚单体。 得到的含氟聚合物具有长链分支。 本发明还提供了制备这些聚合物的方法。