High melting PFTE polymers for melt-processing
    74.
    发明授权
    High melting PFTE polymers for melt-processing 有权
    用于熔融加工的高熔点PFTE聚合物

    公开(公告)号:US09175113B2

    公开(公告)日:2015-11-03

    申请号:US13811783

    申请日:2011-07-15

    IPC分类号: C08F16/24 C08F214/26

    摘要: Provided are a tetrafluoroethylene copolymers having a melting point of at least 317° C., a melt flow index (MFI) at 372° C. and a 5 kg load (MFI 372/5) of from about 0.60 g/10 min up to about 15 g/10 min. Also provided are methods of forming a shaped article using the copolymers described above, shaped articles made with those copolymers and compositions containing such copolymers.

    摘要翻译: 提供熔点为317℃,熔体流动指数(MFI)为372℃,5kg负荷(MFI 372/5)为约0.60g / 10min的四氟乙烯共聚物,直到 约15g / 10min。 还提供了使用上述共聚物形成成型制品的方法,用这些共聚物制成的成型制品和含有这种共聚物的组合物。

    Compositions comprising melt-processable thermoplastic fluoropolymers and methods of making the same
    75.
    发明授权
    Compositions comprising melt-processable thermoplastic fluoropolymers and methods of making the same 有权
    包含可熔融加工的热塑性含氟聚合物的组合物及其制备方法

    公开(公告)号:US09029477B2

    公开(公告)日:2015-05-12

    申请号:US11276520

    申请日:2006-03-03

    摘要: A composition comprising a first fluoropolymer and a second fluoropolymer. The first and second fluoropolymers are melt-processable, thermoplastic and have a melting point between 100° C. and 320° C. The first fluoropolymer has a relaxation exponent of from 0.93 to 1.0. The second fluoropolymer has a relaxation exponent of from 0.3 to 0.92. A composition comprising a first fluoropolymer having a long chain branching index of from 0 to 0.1 and a second fluoropolymer having a long chain branching index of at least 0.2. A composition comprising a core-shell polymer having a first polymer portion, wherein a polymer having an identical chemical structure as the first polymer portion has a relaxation exponent of from 0.93 to 1.0, and a second fluoropolymer portion, wherein a polymer having an identical chemical structure as the second fluoropolymer portion has a relaxation exponent of from 0.3 to 0.92. Methods for making compositions and methods of making articles from compositions.

    摘要翻译: 一种包含第一含氟聚合物和第二含氟聚合物的组合物。 第一和第二含氟聚合物是可熔融加工的,热塑性的并且具有在100℃和320℃之间的熔点。第一含氟聚合物的松弛指数为0.93至1.0。 第二含氟聚合物的弛豫指数为0.3〜0.92。 一种组合物,其包含长链支化指数为0至0.1的第一含氟聚合物和长链支化指数至少为0.2的第二含氟聚合物。 一种组合物,其包含具有第一聚合物部分的核 - 壳聚合物,其中具有与所述第一聚合物部分相同的化学结构的聚合物具有0.93至1.0的松弛指数,和第二含氟聚合物部分,其中具有相同化学 作为第二含氟聚合物部分的结构具有0.3至0.92的松弛指数。 制备组合物的方法和从组合物制备制品的方法。

    Fluorinated ether compositions and methods of using the same
    78.
    发明授权
    Fluorinated ether compositions and methods of using the same 失效
    氟化醚组合物及其使用方法

    公开(公告)号:US08476385B2

    公开(公告)日:2013-07-02

    申请号:US12602877

    申请日:2008-06-06

    IPC分类号: C08F18/20

    摘要: A composition including at least one first divalent unit represented by formula: Each Rf is independently selected from the group consisting of Rfa—(O)t—CHF—(CF2)n—; [Rfa—(O)t—C(L)H—CF2—O]m—W—; Rfb-O—(CF2)p-; F(CkF2k)—(O—CkF2k)P—O—CF2—; and CF3—O—(CF2)3—(OCF(CF3)—CF2)Z—O-L1-. Each Q is independently selected from the group consisting of a bond, —C(O)—N(R1)—, and —C(O)—O—. Each X is independently selected from the group consisting of alkylene and arylalkylene, wherein alkylene and arylalkylene are each optionally interrupted by at least one ether linkage and optionally terminated by —N(R1)—C(O)— or —O—C(O)—. R and R1 are each independently selected from the group consisting of hydrogen and alkyl having from 1 to 4 carbon atoms. Rfa represents a partially or fully fluorinated alkyl group having from 1 to 10 carbon atoms and optionally interrupted with at least one oxygen atom. Rfb is selected from the group consisting of CF3CFH— and F(CjF2j)-. Methods of reducing surface tension of a liquid, making foams, and treating a surface using the compositions are also disclosed.

    摘要翻译: 包含至少一个由式表示的第一二价单元的组合物:每个Rf独立地选自Rfa-(O)t-CHF-(CF 2)n - ; [Rfa-(O)t -C(L)H-CF 2 -O] m -W-; Rfb-O-(CF2)p-; F(CkF2k) - (O-CkF2k)P-O-CF2-; 和CF 3 -O-(CF 2)3 - (OCF(CF 3)-CF 2)Z-O-L 1。 每个Q独立地选自由键,-C(O)-N(R 1) - 和-C(O)-O-组成的组。 每个X独立地选自亚烷基和芳基亚烷基,其中亚烷基和芳基亚烷基各自任选地被至少一个醚键中断,并且任选地被-N(R 1)-C(O) - 或-OC(O) - 。 R和R 1各自独立地选自氢和具有1至4个碳原子的烷基。 Rfa表示具有1至10个碳原子并且任选被至少一个氧原子中断的部分或完全氟化的烷基。 Rfb选自CF 3 CFH-和F(C 1 F 2)) - 。 还公开了降低液体的表面张力,制造泡沫和使用组合物处理表面的方法。