Fluoropolymers resistant to stress cracking
    1.
    发明授权
    Fluoropolymers resistant to stress cracking 失效
    耐应力开裂的含氟聚合物

    公开(公告)号:US06984697B2

    公开(公告)日:2006-01-10

    申请号:US10680537

    申请日:2003-10-07

    IPC分类号: C08L27/12

    CPC分类号: C08F214/262

    摘要: The invention provides a fluorothermoplastic composition comprising interpolymerized units derived from about 94 to about 97.5 mole percent (mol %) tetrafluoroethylene (TFE), about 2 to about 3 mol % perfluoro (propyl vinyl ether) (PPVE), and about 0.5 to about 3 mol % hexafluoropropylene (HFP). The invention also provides a fluorothermoplastic composition comprising interpolymerized units derived from about 94 to about 97 mol % TFE, about 0.75 to about 3 mol % PPVE, and about 1.5 to about 3.5 mol % HFP. These fluorothermoplastic compositions have a flex life that fits the equation: log(flex life cycles)≧0.71+4.0*(MFI(−0.294)), a method of making fluorothermoplastic compositions, a method of improving stress crack resistance, and fluorothermoplastic articles.

    摘要翻译: 本发明提供一种含氟热塑性组合物,其包含衍生自约94至约97.5摩尔%(摩尔%)四氟乙烯(TFE),约2至约3摩尔%全氟(丙基乙烯基醚)(PPVE)和约0.5至约3 mol%六氟丙烯(HFP)。 本发明还提供一种含氟热塑性组合物,其包含衍生自约94至约97摩尔%TFE,约0.75至约3摩尔%PPVE和约1.5至约3.5摩尔%HFP的互聚单元。 这些氟热塑性组合物具有适合以下等式的挠曲寿命:<?in-line-formula description =“In-line Formulas”end =“lead”?> log(flex life cycles)> = 0.71 + 4.0 *(MFI ( - 0.294)),<?in-line-formula description =“In-line Formulas”end =“tail”?>制备荧光热塑性组合物的方法,改善抗应力开裂性的方法和氟热塑性 文章。

    Fluoropolymers resistant to stress cracking
    2.
    发明授权
    Fluoropolymers resistant to stress cracking 有权
    耐应力开裂的含氟聚合物

    公开(公告)号:US06653379B2

    公开(公告)日:2003-11-25

    申请号:US09904235

    申请日:2001-07-12

    IPC分类号: C08F21426

    CPC分类号: C08F214/262

    摘要: The invention provides a fluorothermoplastic composition comprising interpolymerized units derived from about 94 to about 97.5 mole percent (mol %) tetrafluoroethylene (TFE), about 2 to about 3 mol % perfluoro (propyl vinyl ether) (PPVE), and about 0.5 to about 3 mol % hexafluoropropylene (HFP). The invention also provides a fluorothermoplastic composition comprising interpolymerized units derived from about 94 to about 97 mol % TFE, about 0.75 to about 3 mol % PPVE, and about 1.5 to about 3.5 mol % HFP. These fluorothermoplastic compositions have a flex life that fits the equation: log(flex life cycles)≧0.71+4.0*(MFI(−0.294)), a method of making fluorothermoplastic compositions, a method of improving stress crack resistance, and fluorothermoplastic articles.

    摘要翻译: 本发明提供一种含氟热塑性组合物,其包含衍生自约94至约97.5摩尔%(摩尔%)四氟乙烯(TFE),约2至约3摩尔%全氟(丙基乙烯基醚)(PPVE)和约0.5至约3 mol%六氟丙烯(HFP)。 本发明还提供一种含氟热塑性组合物,其包含衍生自约94至约97mol%TFE,约0.75至约3mol%PPVE和约1.5至约3.5mol%HFP的共聚单元。 这些氟热塑性组合物具有适合以下等式的柔性寿命:制备氟热塑性组合物的方法,改善耐应力开裂性的方法和氟热塑性制品。

    Fluoropolymers from tetrafluoroethylene and perfluoro(alkoxyalkyl vinyl) ether
    10.
    发明授权
    Fluoropolymers from tetrafluoroethylene and perfluoro(alkoxyalkyl vinyl) ether 有权
    来自四氟乙烯和全氟(烷氧基烷基乙烯基)醚的含氟聚合物

    公开(公告)号:US07060772B2

    公开(公告)日:2006-06-13

    申请号:US10363110

    申请日:2001-09-20

    IPC分类号: C08F16/24

    CPC分类号: C08F214/26

    摘要: A fluoropolymer having a melting point of at least 160° C. is provided wherein the fluoropolymer is derived from tetrafluoroethylene as the major component, one or more perfluoro vinyl ethers as the minor component, the perfluoro vinyl ether having the formula CF2═CFO(CF2)nORf wherein n is from 2 to 6 and Rf is a perfluoroalkyl group having 1 to 6 carbon atoms, and optionally a perfluoro alkyl vinyl ether having from 1 to 5 carbon atoms in the alkyl radical.

    摘要翻译: 提供熔点至少为160℃的含氟聚合物,其中氟聚合物衍生自四氟乙烯作为主要组分,一种或多种全氟乙烯基醚作为次要组分,具有式CF 2的全氟乙烯基醚 其中n为2至6,且R f为(C 1 -C 3) >是具有1至6个碳原子的全氟烷基,并且任选地在烷基中具有1至5个碳原子的全氟烷基乙烯基醚。