FLUORORESIN COMPOSITION AND COVERED ELECTRIC WIRE
    34.
    发明申请
    FLUORORESIN COMPOSITION AND COVERED ELECTRIC WIRE 有权
    氟菊酯组合物和覆盖电线

    公开(公告)号:US20110272173A1

    公开(公告)日:2011-11-10

    申请号:US12674070

    申请日:2008-09-24

    IPC分类号: H01B3/30 C08L27/20

    摘要: It is an object of the present invention to provide a fluororesin composition which hardly causes molding defects even when high-speed molding is performed in covering extrusion molding within a relatively broad molding temperature range and which can give covered electric wires, in particular foamed electric wires, excellent in surface smoothness.A fluororesin composition comprising a polytetrafluoroethylene [PTFE] having a standard specific gravity of 2.15 to 2.30 and a tetrafluoroethylene/hexafluoropropylene-based copolymer [FEP], the content of said PTFE being 0.01 to 3 parts by mass per 100 parts by mass of said FEP and the alkali metal content being not higher than 5 ppm on the resin composition solid matter basis, wherein said composition is obtained by a method comprising the step (1) of obtaining a cocoagulated fluororesin powder by mixing an aqueous dispersion containing said FEP and an aqueous dispersion containing said PTFE together, followed by coagulation, the step (2) of melt extruding the cocoagulated powder and the step (3) of subjecting the extrusion product to treatment for stabilizing unstable terminal groups in said PTFE and FEP.

    摘要翻译: 本发明的目的是提供即使在相对宽的成型温度范围内覆盖挤压成型进行高速成型时也难以引起成型缺陷的氟树脂组合物,其可以形成被覆电线,特别是发泡电线 表面平滑度优异。 一种含有标准比重为2.15〜2.30的聚四氟乙烯[PTFE]和四氟乙烯/六氟丙烯系共聚物[FEP]的氟树脂组合物,所述PTFE的含量相对于100质量份所述FEP为0.01〜3质量份 碱性金属含量在树脂组合物固体物质上不高于5ppm,其中所述组合物通过包括步骤(1)的方法获得,所述方法包括通过将含有所述FEP的水性分散体和水溶液 将所述PTFE分散在一起,然后凝固,熔融挤出可凝结粉末的步骤(2)和使挤出产物经受处理以稳定所述PTFE和FEP中的不稳定末端基团的步骤(3)。

    Fluoropolymer laminate
    35.
    发明授权
    Fluoropolymer laminate 有权
    含氟聚合物层压板

    公开(公告)号:US06780483B1

    公开(公告)日:2004-08-24

    申请号:US10069342

    申请日:2002-02-25

    IPC分类号: B32B2700

    摘要: A layer of a tetrafluoroethylene copolymer having 30 to 81% by mole of tetrafluoroethylene and 70 to 19% by mole of at least one other monomer and having a carbonate group in a polymer chain or at a polymer chain terminal, which has a melt flow rate of 0.1 to 100 g/10 minutes (230° C., 5 kg-load) and a melting point of 90 to 230° C. and a layer of a polyolefin resin are adhered with a layer of an ethylene-vinyl acetate copolymer, which satisfies the following relationship: X×Y/100≧7.0, wherein X is a vinyl acetate content (% by mole) and Y is a saponification degree of a methyl ester (%). The resulting laminate has high resistance to fuels, and the layer of the tetrafluoroethylene copolymer having a carbonate group and the layer of the polyolefin resin are firmly adhered.

    摘要翻译: 在聚合物链或聚合物链末端具有30〜81摩尔%的四氟乙烯和70〜19摩尔%的至少一种其它单体并具有碳酸酯基的四氟乙烯共聚物层,其具有熔体流动速率 为0.1〜100g / 10分钟(230℃,5kg载荷),熔点为90〜230℃,用乙烯 - 乙酸乙烯酯共聚物层粘合聚烯烃树脂层, 其满足以下关系式:XxY / 100> = 7.0,其中X是乙酸乙烯酯含量(摩尔%),Y是甲酯的皂化度(%)。 所得到的层压体具有高的燃料抵抗性,并且具有碳酸酯基的四氟乙烯共聚物层和聚烯烃树脂层牢固地粘合。

    Tetrafluoroethylene copolymer and use thereof
    36.
    发明授权
    Tetrafluoroethylene copolymer and use thereof 有权
    四氟乙烯共聚物及其用途

    公开(公告)号:US06372870B1

    公开(公告)日:2002-04-16

    申请号:US09446651

    申请日:1999-12-23

    IPC分类号: C08F21426

    摘要: A tetrafluoroethylene copolymer comprising 30 to 81 mole % of tetrafluoroethylene and a 70 to 19 mole % of at least one other monomer, and having terminal carbonate groups at polymer chain ends, which has a melt flow rate of 0.1 to 100 g/10 min. at 200° C. under a load of 5 kg, and a melting point of 90 to 200° C. This copolymer can be firmly adhered directly to other materials such as general-purpose resins while maintaining the good properties of fluororesins such as chemical resistance, weather resistance, solvent resistance, non-tackiness, electrical insulation, stain-proofing properties, and flame retardance, molded at a lower temperature than conventional fluororesins, and heat bonded or co-extruded with general-purpose resins having low heat resistance.

    摘要翻译: 包含30至81摩尔%的四氟乙烯和70至19摩尔%的至少一种其它单体并且在聚合物链端具有末端碳酸酯基的四氟乙烯共聚物,其熔体流动速率为0.1至100g / 10分钟。 在200℃,5kg的负荷下,熔点为90〜200℃。该共聚物可以直接牢固地粘合到其他材料如通用树脂上,同时保持氟树脂的良好性能,如耐化学性 耐候性,耐溶剂性,非粘着性,电绝缘性,防污性和阻燃性,在比常规氟树脂低的温度下成型,并与通常使用低耐热性的树脂进行热粘合或共挤出。