Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants
    12.
    发明授权
    Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants 有权
    使用烷基磺酸盐表面活性剂生产热塑性含氟聚合物的方法

    公开(公告)号:US07122610B2

    公开(公告)日:2006-10-17

    申请号:US10832535

    申请日:2004-04-27

    IPC分类号: C08F214/22

    CPC分类号: C08F14/18 C08F2/10

    摘要: Nonfluorinated surfactants selected from C7–C20 linear 1-alkanesulfonates, 2-alkanesulfones, and 1,2-alkanedisulfones are particularly effective for stabilizing emulsions in preparing non-elastomeric fluoropolymers containing at least 71 wt % vinylidene fluoride and having at least a 2% crystalline polyvinylidene fluoride content. Processes for making such fluoropolymers using these surfactants, particularly in combination with one or both of a nonionic polymerization initiator and the use of mechanical coagulation to isolate the product, are also provided, as are fluoropolymers made thereby.

    摘要翻译: 选自C 7 -C 20直链1-链烷磺酸盐,2-烷烃砜和1,2-链烷二砜的非氟化表面活性剂在制备含有至少71重量%偏二氟乙烯并且具有至少2%结晶的非弹性含氟聚合物时稳定乳液是特别有效的 聚偏二氟乙烯含量。 还提供了使用这些表面活性剂,特别是与非离子聚合引发剂中的一种或两种以及使用机械凝结来分离产物的这些含氟聚合物的制备方法,由此制备的含氟聚合物也是如此。

    Crosslinkable aqueous fluoropolymer based dispersions
    14.
    发明授权
    Crosslinkable aqueous fluoropolymer based dispersions 有权
    可交联的含氟聚合物水基分散体

    公开(公告)号:US06680357B1

    公开(公告)日:2004-01-20

    申请号:US09613515

    申请日:2000-07-10

    IPC分类号: C08L1502

    摘要: Acrylic Modified Fluoropolymers based on vinylidene fluoride polymers are disclosed wherein the acrylic phase is capable of entering into crosslinking reactions. The final cured products provide superior solvent extractability resistance to the fluoropolymer phase.

    摘要翻译: 公开了基于偏二氟乙烯聚合物的丙烯酸改性的含氟聚合物,其中丙烯酸相能够进入交联反应。 最终的固化产物对氟聚合物相提供优异的溶剂萃取性能。

    Branched fluoropolymers
    17.
    发明授权
    Branched fluoropolymers 有权
    分支含氟聚合物

    公开(公告)号:US08557938B2

    公开(公告)日:2013-10-15

    申请号:US11271057

    申请日:2005-11-10

    IPC分类号: C08F4/38

    摘要: The invention relates to the preparation of branched fluoropolymers having long chain branches and little or no gels, by a process involving polymerization at high temperatures using persulfates and optionally multifunctional initiators. The invention also relates to gel-free, branched polymers with strain hardening produced by the process.

    摘要翻译: 本发明涉及通过使用过硫酸盐和任选的多官能引发剂在高温下聚合的方法制备具有长支链和很少或不含凝胶的支链含氟聚合物。 本发明还涉及通过该方法产生的具有应变硬化性的无凝胶的支化聚合物。