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    • 3. 发明授权
    • Fluoropolymers resistant to stress cracking
    • 耐应力开裂的含氟聚合物
    • US06653379B2
    • 2003-11-25
    • US09904235
    • 2001-07-12
    • Thomas J. BlongLisa P. ChenRalph KaulbachFriedrich KloosGeorg Burkard
    • Thomas J. BlongLisa P. ChenRalph KaulbachFriedrich KloosGeorg Burkard
    • C08F21426
    • C08F214/262
    • 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.
    • 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。
    • 6. 发明授权
    • Fluoropolymers resistant to stress cracking
    • 耐应力开裂的含氟聚合物
    • US06984697B2
    • 2006-01-10
    • US10680537
    • 2003-10-07
    • Thomas J. BlongLisa P. ChenRalph KaulbachFriedrich KloosGeorg Burkard
    • Thomas J. BlongLisa P. ChenRalph KaulbachFriedrich KloosGeorg Burkard
    • C08L27/12
    • C08F214/262
    • 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.
    • 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。
    • 10. 发明授权
    • FEP with increased flexural fatigue strength and a low level of die deposits
    • FEP具有增加的弯曲疲劳强度和低水平的模具沉积
    • US06583226B1
    • 2003-06-24
    • US10009422
    • 2001-12-10
    • Ralph KaulbachFriedrich Kloos
    • Ralph KaulbachFriedrich Kloos
    • C08L2718
    • H01B3/445C08L27/18C08L2205/02C08L2666/04
    • Provided is a melt-processible perfluorinated polymer composition comprising (a) a melt-processible perfluoropolymer comprising (i) from 80 to 98% by weight of repeating units derived from tetrafluoroethylene, (ii) from 2 to 20% by weight of repeating units derived from hexafluoropropylene, and (iii) from 0 to 5% by weight of repeating units derived from further comonomers other than tetrafluoroethylene and hexafluoropropylene, and wherein the proportion by weight of the repeating units derived from hexafluoropropylene units is greater than that of the repeating units of said further comonomers, and (b) from 0.01 to 5% by weight, based on perfluoropolymer (a), of a high-molecular-weight perfluorinated polymer with a melting point at least 20° C. above that of the fluoropolymer (a). Also provided are processes for making and using such melt-processable compositions.
    • 提供一种可熔融加工的全氟化聚合物组合物,其包含(a)可熔融加工的全氟聚合物,其包含(i)80至98重量%的衍生自四氟乙烯的重复单元,(ii)2至20重量%的衍生自 来自六氟丙烯,和(iii)0-5重量%的衍生自除了四氟乙烯和六氟丙烯之外的其它共聚单体的重复单元,其中衍生自六氟丙烯单元的重复单元的重量比大于重复单元的重复单元 所述另外的共聚单体表示,和(b)基于全氟聚合物(a)0.01至5重量%的熔点比氟聚合物(a)的熔点高至少20℃的高分子量全氟化聚合物, 。 还提供了制备和使用这种可熔融加工的组合物的方法。