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    • 25. 发明授权
    • Polymerisation of hexafluoropropylene oxide
    • 六氟环氧丙烷的聚合
    • US08653229B2
    • 2014-02-18
    • US12934379
    • 2009-03-25
    • Bernard Danner
    • Bernard Danner
    • C08G65/22C08G65/34C08G65/00C08F6/08
    • C08G65/226
    • Process for the oligomerization of hexafluoropropylene oxide (HFPO) in which the sum of the dimers, trimers, tetramers, pentamers and hexamers represents less than 20% of the weight of the polymerized HFPO, the oligomers other than the dimers, trimers, tetramers, pentamers and hexamers (the remaining oligomers) having an average molecular weight ranging between 1100 and 4000 g/mol, characterized in that the process comprises the steps of contacting hexafluoropropylene oxide (HFPO) at a temperature between −30° C. to +50° C. with a catalyst system selected from potassium fluoride and di-, tri- or tetraethyleneglycol-dimethylether in the presence of a solvent which is selected from perfluorinated aliphatic or aromatic hydrocarbon with more than 3 and less than 12 C-atoms and optionally a polar group but not comprising chlorine or bromine partially fluorinated aliphatic or aromatic hydrocarbon with more than 3 and less than 12 C-atoms and optionally a polar group but not comprising chlorine or bromine at a pressure of less than 3 bars by controlled monomer addition continuous feeding or by adding the monomer in one or two portions (shots).
    • 六聚环氧丙烷(HFPO)的低聚方法,其中二聚体,三聚体,四聚体,五聚体和六聚体的总和小于聚合的HFPO的重量的20%,二聚体,三聚体,四聚体,五聚体以外的低聚物 和平均分子量为1100-4000g / mol的六聚体(剩余的低聚物),其特征在于该方法包括在-30℃至+ 50℃的温度下接触六氟环氧丙烷(HFPO) 在选自氟化钾和二,三或四乙二醇 - 二甲醚的催化剂体系中,在选自具有多于3个且小于12个C原子的全氟化脂族或芳族烃的溶剂的存在下,和任选的极性基团 但不包含具有多于3个且小于12个C原子的氯或溴部分氟化的脂族或芳族烃,并且任选地包含极性基团但不包括chlo 通过受控单体添加连续进料或通过在一个或两个部分(射击)中加入单体,在小于3巴的压力下制备溴或溴。
    • 26. 发明申请
    • Polymerisation of Hexafluoropropylene Oxide
    • 六氟环氧丙烷的聚合
    • US20110092665A1
    • 2011-04-21
    • US12934379
    • 2009-03-25
    • Bernard Danner
    • Bernard Danner
    • C08G65/22C07C43/17
    • C08G65/226
    • Process for the oligomerization of hexafluoropropylene oxiyde (HFPO) in which the sum of the dimers, trimers, tetramers, pentamers and hexamers represents less than 20% of the weight of the polymerized HFPO, the oligomers other than the dimers, trimers, tetramers, pentamers and hexamers (the remaining oligomers) having an average molecular weight ranging between 1100 and 4000 g/mol, characterized in that the process comprises the steps of contacting hexafluoropropylene oxide (HFPO) at a temperature between −30° C. to +50° C. with a catalyst system selected from potassium fluoride and di-, tri- or tetraethyleneglycol-dimethylether in the presence of a solvent which is selected from perfluorinated aliphatic or aromatic hydrocarbon with more than 3 and less than 12C-atoms and optionally a polar group but not comprising chlorine or bromine partially fluorinated aliphatic or aromatic hydrocarbon with more than 3 and less than 12C-atoms and optionally a polar group but not comprising chlorine or bromine at a pressure of less than 3 bars by controlled monomer addition continuous feeding or by adding the monomer in one or two portions (shots).
    • 六聚丙烯氧化物(HFPO)的低聚方法,其中二聚体,三聚体,四聚体,五聚体和六聚体的总和小于聚合的HFPO重量的20%,二聚体,三聚体,四聚体,五聚体以外的低聚物 和平均分子量为1100-4000g / mol的六聚体(剩余的低聚物),其特征在于该方法包括在-30℃至+ 50℃的温度下接触六氟环氧丙烷(HFPO) 在选自氟化钾和二 - ,三 - 或四乙二醇 - 二甲醚的催化剂体系中,在选自具有多于3个且小于12个C原子的任何极性基团的全氟化脂族或芳族烃的溶剂存在下,但是 不包含具有多于3个且小于12个C原子的任选的极性基团但不包括chl的氯或溴部分氟化的脂族或芳族烃 通过受控单体加入连续进料或通过在一个或两个部分(射击)中加入单体,在小于3巴的压力下加入溴或溴或溴。