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174 条记录 (耗时 0.016 秒)

    Vinylidene fluoride resin filament and production thereof
    72.
    发明授权
    Vinylidene fluoride resin filament and production thereof 失效
    偏二氟乙烯树脂长丝及其生产

    公开(公告)号：US4521483A

    公开(公告)日：1985-06-04

    申请号：US573684

    申请日：1984-01-25

    申请人： Tohru Sasaki ,  Hiroyuki Endoh ,  Seiichi Ohira

    发明人： Tohru Sasaki ,  Hiroyuki Endoh ,  Seiichi Ohira

    IPC分类号： A01K75/00 ,  D01F8/10 ,  D02G3/00 ,  B29F3/10 ,  B32B23/00

    CPC分类号： D01F8/10 ,  Y10T428/2929 ,  Y10T428/2933 ,  Y10T428/2964 ,  Y10T428/3154

    摘要： A composite fiber comprises at least a two layer structure of a sheath and a core, each layer comprising a vinylidene fluoride resin, the core portion having an inherent viscosity of 1.10 dl/g and the sheath portion having an apparent viscosity lower than that of the core portion, said composite fiber having a birefringence of at least 36.0.times.10.sup.-3. This composite fiber, which has excellent knot strength (as high as 91 kg/mm.sup.2), high tensile strength (as high as 103 kg/mm.sup.2), excellent luster, and high processability and productivity, is produced by preparing a composite comprising a core portion of a vinylidene fluoride resin having an inherent viscosity of at least 1.10 dl/g and at least one layer of a sheath portion covering over said core portion, which has an apparent viscosity lower than that of the vinylidene fluoride resin of the core, while at least one of the core portion and the sheath portion is in molten state, and then subjecting the composite to at least one-step stretching to a stretching degree of 5.0-fold or more at a temperature which is lower by 5.degree. C. or more but not lower by 30.degree. C. or more than the melting point of the resin of the core.

    摘要翻译： 复合纤维包括至少两层护套和芯层结构，每层包含偏氟乙烯树脂，核心部分的特性粘度为1.10dl / g，鞘部分的表观粘度比 芯部分，所述复合纤维的双折射率至少为36.0×10 -3。 该复合纤维通过制备包含芯的复合材料来生产，其具有优异的结强度（高达91kg / mm2），高拉伸强度（高达103kg / mm2），优异的光泽和高加工性和生产率 具有至少1.10dl / g的特性粘度的至少一个偏氟乙烯树脂的部分和覆盖在所述芯部上的至少一层鞘部分，其表观粘度低于芯的偏二氟乙烯树脂的表观粘度，同时 核心部分和鞘部分中的至少一个处于熔融状态，然后在低于5℃的温度下对复合材料进行至少一步拉伸至5.0倍以上的拉伸度，或 更多但不低于30℃或更高于芯的树脂的熔点。

    Capacitor
    74.
    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

    申请人： Tohru Sasaki ,  Mutsuru Ohta ,  Syuuzi Terasaki ,  Shozo Kakizaki

    发明人： Tohru Sasaki ,  Mutsuru Ohta ,  Syuuzi Terasaki ,  Shozo Kakizaki

    IPC分类号： H01G4/18 ,  H01G4/20 ,  H01G4/22 ,  H01G3/17 ,  H01G4/06

    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。

    Method for continuously polarizing thermoplastic film
    77.
    发明授权
    Method for continuously polarizing thermoplastic film 失效
    连续偏振热塑性薄膜的方法

    公开(公告)号：US3985914A

    公开(公告)日：1976-10-12

    申请号：US612144

    申请日：1975-09-10

    申请人： Tohru Sasaki ,  Takao Ichii ,  Shuji Terasaki

    发明人： Tohru Sasaki ,  Takao Ichii ,  Shuji Terasaki

    IPC分类号： H04R17/00 ,  D06M10/00 ,  H01G7/02 ,  H01L41/193 ,  H01L41/45

    CPC分类号： H01L41/45 ,  H01G7/023 ,  H01L41/193 ,  H01L41/257 ,  Y10T29/49002

    摘要： For making a piezoelectric thermoplastic film device, a polar thermoplastic film is provided on both sides thereof with conductive layers which function as polarizing electrodes during the polarizing step. In a polarizing zone, a polarizing voltage is applied across the electrodes while the film is heated to a suitable polarizing temperature. To reduce undesirable capacitive effects, at least one electrode layer is separated into sections by narrow insulating regions extending transversely across the film. After cooling, the polarizing voltage and the accumulated electric charges in the film are removed.

    摘要翻译： 为了制造压电热塑性薄膜器件，在其两侧设置极化热塑性薄膜，该导电层在偏振步骤中用作极化电极。 在偏振区域中，在将膜加热到合适的极化温度的同时，在电极两端施加极化电压。 为了减少不期望的电容效应，至少一个电极层通过横向延伸穿过膜的窄绝缘区分成多个部分。 冷却后，除去膜中的极化电压和累积电荷。