Piezoelectric and pyroelectric film and method for preparing the film
    2.
    发明授权
    Piezoelectric and pyroelectric film and method for preparing the film 失效
    压电和热电膜及其制备方法

    公开(公告)号:US4290983A

    公开(公告)日:1981-09-22

    申请号:US95379

    申请日:1979-11-19

    摘要: A piezoelectric and pyroelectric film made from a resin composition of polymer of vinylidene fluoride, which is characterized by an index of birefringence of larger than 3.times.10.sup.-3 and a ratio of d.sub.31 /d.sub.32 of 0.3 to 3.0, and which may be prepared by further stretching a biaxially stretched film made from the above-mentioned resin composition at a temperature lower than the temperature of the biaxially stretching by more than 20.degree. C. before or at the same time of a treatment for orientation polarization of the film.

    摘要翻译: 由偏二氟乙烯的聚合物的树脂组合物制成的压电和热电膜,其特征在于双折射率大于3×10 -3,d31 / d32的比例为0.3-3.0,并且可以通过进一步的拉伸 由上述树脂组合物制成的双轴向拉伸膜,在低于在二膜拉伸温度超过20℃的温度下,或在该膜的取向极化处理之前或同时进行。

    Method of polarizing a thermoplastic resin film
    5.
    发明授权
    Method of polarizing a thermoplastic resin film 失效
    使热塑性树脂膜偏振的方法

    公开(公告)号:US4047998A

    公开(公告)日:1977-09-13

    申请号:US667311

    申请日:1976-03-16

    摘要: A method is disclosed for polarizing a thermoplastic resin film having a continuous metal electrode on one surface and a plurality of discrete electrodes on the other surface. An additional thermoplastic resin film coated on one surface with an evaporated metal coating is placed on the first thermoplastic resin film such that the evaporated metal coating comes into contact with the discrete electrodes. A polarizing d.c. voltage is applied between the continuous metal electrode and the evaporated metal coating.

    摘要翻译: 公开了一种用于偏振在一个表面上具有连续金属电极的热塑性树脂膜和在另一个表面上的多个分立电极的偏振方法。 在第一热塑性树脂膜上放置在一个表面上涂覆有蒸发的金属涂层的另外的热塑性树脂膜,使得蒸发的金属涂层与分立的电极接触。 极化直流 在连续的金属电极和蒸发的金属涂层之间施加电压。

    Capacitor
    7.
    发明授权
    Capacitor 失效
    电容器

    公开(公告)号:US4439811A

    公开(公告)日:1984-03-27

    申请号:US444746

    申请日:1982-11-26

    CPC分类号: H01G4/20

    摘要: The capacitor contains a film layer comprising essentially a vinylidene fluoride resin and a coating layer composed of a mixture of the vinylidene fluoride resin and a polymer substantially incompatible with the vinylidene fluoride resin and having a critical surface tension of 30 dyn/cm or higher.The capacitor components as set forth hereinabove can render the capacitor compact without decreasing the performance inherent in the polyvinyl fluoride resin.

    摘要翻译: 电容器包含基本上由偏二氟乙烯树脂构成的膜层和由偏二氟乙烯树脂和与偏二氟乙烯树脂基本上不相容的聚合物和具有30dyn / cm或更高的临界表面张力的混合物组成的涂层。 如上所述的电容器组件可以使电容器紧凑,而不会降低聚氟乙烯树脂固有的性能。