BRANCHED FLUOROTHERMOPLASTS AND METHOD OF MAKING THE SAME

    公开(公告)号:US20210189031A1

    公开(公告)日:2021-06-24

    申请号:US16756261

    申请日:2018-10-23

    Abstract: Described herein is a fluorothermoplast with long chain branching and a method of making such a polymer using a modifier of the formula: F2C═CF(CF2)a(O)RfH wherein a is 0 or 1 and Rf is a linear or branched fluorinated alkylene group comprising 1 to 5 carbon atoms and optionally comprising at least one ether linkage and optionally comprising 1 or 2 hydrogen atoms. This fluorothermoplast may be processed through polymer melt processes, such as blow molding, injection molding, film extrusion, and wire extrusion. Preferably, said polymer contains structural units derived from tetrafluoroethylene and a perfluorinated olefin or ether, and comprises chain branching.

    METHOD FOR REMOVING PERFLUORINATED ALKANOIC ACIDS

    公开(公告)号:US20190070599A1

    公开(公告)日:2019-03-07

    申请号:US16081808

    申请日:2017-03-02

    Abstract: Provided are methods for removing a perfluorinated alkanoic acid from solutions containing the perfluorinated alkanoic acid and a fluorinated alkoxy acid. These methods include contacting the first solution with an anion-exchange resin to produce a second solution and a resultant anion-exchange resin having perfluorinated alkanoic acid adsorbed thereto, wherein the perfluorinated alkanoic acid is present in the first solution at a first concentration and is present in the second solution at a second concentration which is lower than the first concentration, and separating the second solution from the resultant anion-exchange resin.

    HIGHLY FLUORINATED POLYMERS
    7.
    发明申请
    HIGHLY FLUORINATED POLYMERS 审中-公开
    高荧光聚合物

    公开(公告)号:US20160122522A1

    公开(公告)日:2016-05-05

    申请号:US14992223

    申请日:2016-01-11

    CPC classification number: C08L27/18 C08F214/262

    Abstract: A method of making a highly fluorinated polymers and resulting aqueous mixtures. The method comprising polymerizing one or more perfluorinated monomers in an aqueous emulsion polymerization in the presence of a polymerizable fluorinated emulsifier to form a perfluorinated polymer. The polymerizable fluorinated emulsifier has the formula X2C═CX(CF2)m(CH2)n[O—(CX2)p]q—[O—(CX2)r]s−[O—(CX2—CX2)]t—[(O)w—(CX2)u]v—[CH2]z—Y. The method also provides for isolating the highly fluorinated polymer and post-fluorinating the isolated highly fluorinated polymer.

    Abstract translation: 制备高度氟化聚合物和所得含水混合物的方法。 该方法包括在可聚合的氟化乳化剂的存在下在水乳液聚合中聚合一种或多种全氟化单体以形成全氟化聚合物。 可聚合的氟化乳化剂具有式X2C≡CX(CF2)m(CH2)n [O-(CX2)p] q- [O-(CX2)r] s- [O-(CX2-CX2)] t- [ (O)w - (CX2)u] v- [CH2] z-Y。 该方法还提供了分离高度氟化的聚合物和后氟化分离的高度氟化的聚合物。

    Highly fluorinated polymers
    8.
    发明授权
    Highly fluorinated polymers 有权
    高氟化聚合物

    公开(公告)号:US09260553B2

    公开(公告)日:2016-02-16

    申请号:US14646980

    申请日:2013-11-21

    CPC classification number: C08L27/18 C08F214/262

    Abstract: A method of making a highly fluorinated polymers and resulting aqueous mixtures. The method comprising polymerizing one or more perfluorinated monomers in an aqueous emulsion polymerization in the presence of a polymerizable fluorinated emulsifier to form a perfluorinated polymer. The polymerizable fluorinated emulsifier has the formula X2C═CX(CF2)m(CH2)n[O—(CX2)p]q—[O—(CX2)r]s—[O—(CX2—CX2)]t—[(O)w—(CX2)u]v—[CH2]z—Y. The method also provides for isolating the highly fluorinated polymer and post-fluorinating the isolated highly fluorinated polymer.

    Abstract translation: 制备高度氟化聚合物和所得含水混合物的方法。 该方法包括在可聚合的氟化乳化剂的存在下在水乳液聚合中聚合一种或多种全氟化单体以形成全氟化聚合物。 可聚合的氟化乳化剂具有式X2C≡CX(CF2)m(CH2)n [O-(CX2)p] q- [O-(CX2)r] s- [O-(CX2-CX2)] t- [ (O)w - (CX2)u] v- [CH2] z-Y。 该方法还提供了分离高度氟化的聚合物和后氟化分离的高度氟化的聚合物。

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