Water-repelling agent for batteries and battery
    2.
    发明授权
    Water-repelling agent for batteries and battery 失效
    电池和电池防水剂

    公开(公告)号:US6156453A

    公开(公告)日:2000-12-05

    申请号:US930542

    申请日:1997-10-01

    摘要: To provide a water-repelling agent for batteries which comprises an aqueous dispersion or organosol containing fine particles having an average particle size of from 0.05 to 1 .mu.m and made of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and/or a non-fibril-forming tetrafluoroethylene polymer, is obtained without use of a powder of a fluorine-containing resin as it is, can enhance chemical resistance, heat resistance and water repellency particularly more effectively without being fibrillated even if mixed with electrode materials and is excellent in workability, and to provide a battery which is produced by using the water-repelling agent for batteries and is excellent in cycle life and internal pressure characteristics.

    摘要翻译: PCT No.PCT / JP96 / 00953 Sec。 371日期:1997年10月1日 102(e)1997年10月1日PCT PCT 1996年4月5日PCT公布。 公开号WO96 / 32751 日本特开1996年10月17日提供一种电池用防水剂,其包含含有平均粒径为0.05〜1μm,由四氟乙烯 - 全氟(烷基乙烯基醚)共聚物构成的细颗粒的水性分散体或有机溶胶, /或非原纤维形成性四氟乙烯聚合物,而不使用含氟树脂的粉末就可以得到,即使与电极材料混合,也可以特别更有效地提高耐化学性,耐热性和拒水性,而不会原纤化 并且具有优异的可加工性,并且提供通过使用电池用防水剂制造并且循环寿命和内部压力特性优异的电池。

    Tetrafluoroethylene copolymer and use thereof
    4.
    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。