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    Aqueous emulsion polymerization process for producing fluoropolymers
    6.
    发明授权
    Aqueous emulsion polymerization process for producing fluoropolymers 有权
    用于生产含氟聚合物的水乳液聚合方法

    公开(公告)号：US07125941B2

    公开(公告)日：2006-10-24

    申请号：US10468134

    申请日：2002-02-25

    申请人： Ralph Kaulbach ,  Ludwig Mayer

    发明人： Ralph Kaulbach ,  Ludwig Mayer

    IPC分类号： C08F16/24

    CPC分类号： C08F259/08 ,  C08F114/18

    摘要： The present invention provides a method of making a fluoropolymer through emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated surfactant. At least part of the fluorinated surfactant is added to the aqueous phase as an aqueous mixture with at least one organic liquid that is not miscible with water and that is selected from halogenated and non-halogenated organic liquids, the mixture having droplets having an average droplet diameter of not more than 1000 nm and the mixture being added to the aqueous phase in such an amount that the total amount of the fluorinated surfactant is not more than 1% by weight based on the weight of the aqueous phase and the total amount of said organic liquid is not more than 1% by weight based on the weight of said aqueous phase. The invention allows for an improvement of the efficiency of an aqueous emulsion polymerization process. In particular, the polymerization time can be reduced and the polymer yield may be improved.

    摘要翻译： 本发明提供一种通过在氟化表面活性剂存在下在水相中一种或多种氟化单体的乳液聚合制备含氟聚合物的方法。 将含氟表面活性剂的至少一部分作为含水混合物与至少一种与水不混溶并且选自卤化和非卤化的有机液体的有机液体加入到水相中，该混合物具有具有平均液滴的液滴 直径不超过1000nm，混合物加入到水相中，使得氟化表面活性剂的总量相对于水相的重量为不超过1重量％，并且所述 基于所述水相的重量，有机液体不超过1重量％。 本发明允许提高水乳液聚合方法的效率。 特别是可以降低聚合时间，提高聚合物收率。

    Fluoropolymers with improved characteristics
    7.
    发明授权
    Fluoropolymers with improved characteristics 有权
    具有改进特性的含氟聚合物

    公开(公告)号：US06489420B1

    公开(公告)日：2002-12-03

    申请号：US09604178

    申请日：2000-06-27

    申请人： Denis Duchesne ,  Harald Kaspar ,  Lisa P. Chen ,  Klaus Hintzer ,  Attila Molnar ,  Ludwig Mayer ,  Gernot Löhr

    发明人： Denis Duchesne ,  Harald Kaspar ,  Lisa P. Chen ,  Klaus Hintzer ,  Attila Molnar ,  Ludwig Mayer ,  Gernot Löhr

    IPC分类号： C08F21422

    CPC分类号： C08F214/222 ,  C08F214/184 ,  C08F214/262 ,  Y10T428/3154 ,  Y10T428/31544

    摘要： A fluoropolymer composition is provided. The polymer comprises interpolymerized units derived from (i) tetrafluoroethylene, (ii) vinylidene fluoride, (iii) at least one ethylenically unsaturated monomer of the formula CF2═CFRf where Rf is a perfluoroalkyl or a perfluoroalkoxy of 1 to 8 carbon atoms, and (iv) a perfluorovinyl ether of the formula CF2═CF—(OCF2CF(Rf))aOR′f where Rf is as described in (iii), R′f is a perfluoroaliphatic, preferably a perfluoroalkyl or a perfluoroalkoxy, of 1 to 8, preferably 1 to 3, carbon atoms, and a has a value of 0 to 3.

    摘要翻译： 提供含氟聚合物组合物。 聚合物包含衍生自（i）四氟乙烯，（ii）偏二氟乙烯，（iii）至少一种式CF 2 = CFR f的烯键式不饱和单体的共聚单元，其中Rf是1至8个碳原子的全氟烷基或全氟烷氧基，和（ iv）式CF 2 = CF-（OCF 2 CF（R f））aOR'f的全氟乙烯醚，其中R f如（iii）中所述，R 1f是1至8的全氟脂族基，优选全氟烷基或全氟烷氧基， 优选为1〜3个碳原子，a为0〜3。

    Fluoropolymers with improved characteristics
    8.
    发明授权
    Fluoropolymers with improved characteristics 有权
    具有改进特性的含氟聚合物

    公开(公告)号：US06610807B2

    公开(公告)日：2003-08-26

    申请号：US10190096

    申请日：2002-07-03

    申请人： Denis Duchesne ,  Harald Kaspar ,  Lisa P. Chen ,  Klaus Hintzer ,  Attila Molnar ,  Ludwig Mayer ,  Gernot Löhr

    发明人： Denis Duchesne ,  Harald Kaspar ,  Lisa P. Chen ,  Klaus Hintzer ,  Attila Molnar ,  Ludwig Mayer ,  Gernot Löhr

    IPC分类号： C08F21422

    CPC分类号： C08F214/222 ,  C08F214/184 ,  C08F214/262 ,  Y10T428/3154 ,  Y10T428/31544

    摘要： A fluoropolymer composition is provided. The polymer comprises interpolymerized units derived from (i) tetrafluoroethylene, (ii) vinylidene fluoride, (iii) at least one ethylenically unsaturated monomer of the formula CF2═CFRf where Rf is a perfluoroalkyl or a perfluoroalkoxy of 1 to 8 carbon atoms, and (iv) a perfluorovinyl ether of the formula CF2═CF—(OCF2CF(Rf))aORf where Rf is as described in (iii), Rf is a perfluoroaliphatic, preferably a perfluoroalkyl or a perfluoroalkoxy, of 1 to 8, preferably 1 to 3, carbon atoms, and a has a value of 0 to 3.

    摘要翻译： 提供含氟聚合物组合物。 聚合物包含衍生自（i）四氟乙烯，（ii）偏二氟乙烯，（iii）至少一种式CF 2 = CFR f的烯键式不饱和单体的共聚单元，其中Rf是1至8个碳原子的全氟烷基或全氟烷氧基，和（ iv）式CF 2 = CF-（OCF 2 CF（R f））aOR f的全氟乙烯基醚，其中Rf如（iii）中所述，Rf是1至8，优选1至3的全氟脂族基，优选全氟烷基或全氟烷氧基 ，碳原子，a的值为0〜3。

    METHOD OF MAKING FLUOROPOLYMER DISPERSION
    10.
    发明申请
    METHOD OF MAKING FLUOROPOLYMER DISPERSION 有权
    制备氟聚合物分散体的方法

    公开(公告)号：US20070015864A1

    公开(公告)日：2007-01-18

    申请号：US11420386

    申请日：2006-05-25

    申请人： Klaus Hintzer ,  Michael Jurgens ,  Harald Kaspar ,  Herbert Koenigsmann ,  Kai Lochhaas ,  Andreas Maurer ,  Werner Schwertfeger ,  Tilman Zipplies ,  Ludwig Mayer ,  Michael Dadalas ,  George Moore ,  Jay Schulz ,  Richard Flynn

    发明人： Klaus Hintzer ,  Michael Jurgens ,  Harald Kaspar ,  Herbert Koenigsmann ,  Kai Lochhaas ,  Andreas Maurer ,  Werner Schwertfeger ,  Tilman Zipplies ,  Ludwig Mayer ,  Michael Dadalas ,  George Moore ,  Jay Schulz ,  Richard Flynn

    IPC分类号： C08L27/12

    CPC分类号： C08L27/12 ,  C08L71/02 ,  Y02C20/30 ,  C08L2666/22

    摘要： A method of making a fluoropolymer dispersion by first providing a fluoropolymer dispersion comprising fluoropolymer particles and one or more fluorinated surfactants selected from fluorinated carboxylic acids or salts thereof having the general formula: [Rf—O-L-COO−]iXi+  (I) wherein L represents a linear partially or fully fluorinated alkylene group or an aliphatic hydrocarbon group, Rf represents a linear partially or fully fluorinated aliphatic group or a linear partially or fully fluorinated aliphatic group interrupted with one or more oxygen atoms, Xi+ represents a cation having the valence i and i is 1, 2 or 3; Then adding one or more non-fluorinated surfactants selected from anionic and non-ionic surfactants followed by reducing the total amount of the one or more fluorinated surfactants to an amount of not more than 500 ppm, for example not more than 250 ppm based on the total weight of the dispersion while maintaining or increasing the amount of solids in the dispersion.

    摘要翻译： 首先提供含氟聚合物颗粒和一种或多种选自氟化羧酸或其盐的含氟表面活性剂的含氟聚合物分散体的制备氟聚合物分散体的方法，所述氟化聚合物分散体具有以下通式：<？in-line-formula description =“In-Line Formulas” （I）结束=“引导”→[R f> OL O> - ））））））））））））））））））））））））） <？in-line-formula description =“In-line formula”end =“tail”？>其中L表示线性部分或完全氟化的亚烷基或脂族烃基，R f表示 线性部分或全氟化的脂族基团或被一个或多个氧原子间隔的线性部分或完全氟化的脂肪族基团，表示i为i且i为1,2或3的阳离子; 然后加入一种或多种选自阴离子和非离子表面活性剂的非氟化表面活性剂，然后将一种或多种氟化表面活性剂的总量减少至不超过500ppm，例如不超过250ppm，基于 分散体的总重量，同时保持或增加分散体中固体的量。