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    • 8. 发明申请
    • Process for production of fluoropolymer
    • 含氟聚合物生产工艺
    • US20060122347A1
    • 2006-06-08
    • US10525847
    • 2003-08-28
    • Mitsuo TsukamotoKenji OtoiYoshiyuki HiragaHideki NakayaToshiki Ichisaka
    • Mitsuo TsukamotoKenji OtoiYoshiyuki HiragaHideki NakayaToshiki Ichisaka
    • C08F4/28
    • C08F14/18B01J3/008Y02P20/544
    • A fluoropolymer producing method which comprises polymerizing a radical polymerizable monomer in a manner of continuous polymerization to give the fluoropolymer, wherein the defined reaction-field is in a supercriticality-expression state and under a pressure of not higher than 40 MPa and a temperature of not higher than that higher by 100° C. than the supercriticality-expression temperature of the defined reaction-field, said radical polymerizable monomer comprises a fluorine-containing ethylenic monomer, and said fluoropolymer has a weight average molecular weight [Mw] of not lower than 150, 000 as determined on the polystyrene equivalent basis and a ratio [Mw/Mn] of the weight average molecular weight [Mw] on the polystyrene equivalent basis to a number average molecular weight [Mn] of the fluoropolymer on the polystyrene equivalent basis is higher than 1 but not higher than 3.
    • 一种含氟聚合物的制造方法,其特征在于,以连续聚合的方式聚合自由基聚合性单体,得到含氟聚合物,其中,规定的反应场处于超临界状态,压力不高于40MPa,温度不高 高于比所定义的反应场的超临界表达温度高100℃,所述可自由基聚合的单体包含含氟乙烯性单体,并且所述含氟聚合物的重均分子量[Mw]不低于 以聚苯乙烯当量为基准测定的聚苯乙烯换算的基于聚苯乙烯换算的重均分子量[Mw]与聚苯乙烯换算的含氟聚合物的数均分子量[Mn]的比[Mw / Mn] 高于1但不高于3。