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    PTC element and process for producing the same
    1.
    发明授权
    PTC element and process for producing the same 失效
    PTC元件及其制造方法

    公开(公告)号：US5817423A

    公开(公告)日：1998-10-06

    申请号：US607636

    申请日：1996-02-27

    申请人： Hiroshi Kajimaru ,  Keiichi Asami ,  Yoshiaki Iwaya ,  Yoshiaki Echigo ,  Akira Ito

    发明人： Hiroshi Kajimaru ,  Keiichi Asami ,  Yoshiaki Iwaya ,  Yoshiaki Echigo ,  Akira Ito

    IPC分类号： H01C7/02 ,  H01C17/065 ,  B32B15/08 ,  B29C65/00 ,  B30B11/00 ,  H01C7/00

    CPC分类号： H01C7/027 ,  H01C17/06573 ,  Y10T428/31678 ,  Y10T428/31692 ,  Y10T428/31855

    摘要： A PTC element comprising a conductive sheet of a crystalline polyolefin matrix and a conductive filler, having provided on both sides thereof an electrode of a metallic foil, the PTC element having a resistivity at 20.degree. C. (.rho..sub.20) of not more than 1.8 .OMEGA..multidot.cm, a peak resistivity (.rho..sub.p) of not less than 2.0.times.10.sup.6 .OMEGA..multidot.cm, and a temperature difference �T.sub.a (0.degree.C.)-T.sub.b (.degree.C.)! of not greater than 10.degree. C., wherein T.sub.a (.degree.C.) is a temperature at which the resistivity is 10.sup.6 times the resistivity at 20.degree. C. (.rho..sub.20) and T.sub.b (.degree.C.) is a temperature at which the resistivity is 10 times the resistivity at 20.degree. C. (.rho..sub.20). The PTC element is produced by a process comprising mixing a crystalline polyolefin and a conductive filler, molding the mixture into a conductive sheet, press bonding under heat a metallic foil to both sides of the conductive sheet, and repeatedly subjecting the conductive sheet to a heating and cooling cycle consisting of heating at a temperature of not lower than (the melting point of the crystalline polyolefin minus 5.degree. C.) and then cooling to a temperature lower than (the melting point of the crystalline polyolefin minus 5.degree. C.). The PTC elements exhibit an extremely low resistivity at 20.degree. C. and a high resistivity at a peak temperature, showing a very steep increase in resistance in a narrow temperature range.

    摘要翻译： 一种PTC元件，包括结晶聚烯烃基质和导电填料的导电片，其两侧均设有金属箔的电极，PTC元件的电阻率在20℃（rho 20）不大于1.8 OMEGA xcm，峰值电阻率（rho p）不小于2.0×10 6欧姆×xcm，温度差[Ta（0℃）-Tb（℃）]为10℃以下，其中Ta （℃）是电阻率为20℃时电阻率的106倍的温度（rho 20），Tb（℃）是电阻率为20℃电阻率10倍的温度。 （rho 20）。 PTC元件通过包括混合结晶聚烯烃和导电填料的方法制备，将该混合物成型为导电片，在导热片的两侧将金属箔加热压接，并重复地对导电片进行加热 和冷却循环由不低于（结晶聚烯烃的熔点减去5℃）的温度加热，然后冷却到低于（结晶聚烯烃的熔点减去5℃）的温度。 PTC元件在20℃下表现出非常低的电阻率，在峰值温度下表现出高电阻率，表现出在窄温度范围内电阻非常陡峭的增加。

    Poly(amic acid) solution and polyimide film or polymide-coated material obtained therefrom
    3.
    发明授权
    Poly(amic acid) solution and polyimide film or polymide-coated material obtained therefrom 失效
    聚（酰胺酸）溶液和由其获得的聚酰亚胺膜或聚酰亚胺涂层材料

    公开(公告)号：US5719253A

    公开(公告)日：1998-02-17

    申请号：US539740

    申请日：1995-10-05

    申请人： Yoshiaki Echigo ,  Shoji Okamoto ,  Hiroshi Yamada ,  Isao Tomioka ,  Yoshiaki Iwaya

    发明人： Yoshiaki Echigo ,  Shoji Okamoto ,  Hiroshi Yamada ,  Isao Tomioka ,  Yoshiaki Iwaya

    IPC分类号： C08G73/10 ,  C09D179/08 ,  H05K1/03 ,  C08K5/17

    CPC分类号： C08G73/1007 ,  C08G73/1032 ,  C09D179/08 ,  H05K1/0346

    摘要： This invention provides a poly(amic acid) solution which does not contain aprotic polar solvents such as DMF, NMP, DMAc, DMSO, as well as a polyimide film obtained therefrom having appropriate flexibility and a small coefficient of linear thermal expansion and a coated material in which the polyimide film is formed on a substrate. More particularly, it provides a poly(amic acid) solution which has an aromatic poly(amic acid) and a tertiary amine as the solute and a water soluble alcohol compound and/or a water soluble ether compound as the solvent and contains substantially no aprotic polar solvent, as well as a polyimide film obtained from the poly(amic acid) solution and a coated material obtained by forming the film on a substrate.

    摘要翻译： 本发明提供不含非质子极性溶剂如DMF，NMP，DMAc，DMSO的聚（酰胺酸）溶液，以及由其获得的具有适当柔性和小的线性热膨胀系数的涂覆材料 其中聚酰亚胺膜形成在基底上。 更具体地，它提供了具有芳族聚（酰胺酸）和叔胺作为溶质的聚（酰胺酸）溶液和水溶性醇化合物和/或水溶性醚化合物作为溶剂，并且基本上不含非质子 极性溶剂，以及由聚（酰胺酸）溶液获得的聚酰亚胺膜和通过在基材上形成膜得到的涂布材料。

    Film forming solution, porous film obtained therefrom and coated material with the porous film
    4.
    发明授权
    Film forming solution, porous film obtained therefrom and coated material with the porous film 失效
    成膜溶液，由此获得的多孔膜和具有多孔膜的涂覆材料

    公开(公告)号：US5510395A

    公开(公告)日：1996-04-23

    申请号：US194310

    申请日：1994-02-10

    申请人： Isao Tomioka ,  Minoru Saito ,  Hiroshi Yamada ,  Yoshiaki Iwaya ,  Yoshiaki Echigo

    发明人： Isao Tomioka ,  Minoru Saito ,  Hiroshi Yamada ,  Yoshiaki Iwaya ,  Yoshiaki Echigo

    IPC分类号： C08G73/10 ,  C09D179/08 ,  H05K1/03 ,  B32B15/08 ,  C08G63/44 ,  C08G69/44

    CPC分类号： C08G73/1071 ,  C08G73/1032 ,  C09D179/08 ,  H05K1/0346 ,  Y10T428/31681 ,  Y10T428/31721

    摘要： A film forming solution which does not require aprotic polar solvents, a porous film of poly(4,4'-oxydiphenylenepyromellitimide) obtained from the film forming solution which has excellent heat and chemical resistances, which is controllable in terms of porosity and pore size of the film and which has excellent electrical characteristics, and a coated material where the porous film is formed on a base material.Particularly, a film forming solution of a precursor of poly(4,4'-oxydiphenylenepyromellitimide) and a mixture of at least three solvents which are poor solvents for the precursor when each solvent is used alone, a porous film of poly(4,4'-oxydiphenylenepyromellitimide) obtained from the film forming solution and a coated material where the porous film is formed on a base material.

    摘要翻译： 不需要非质子极性溶剂的成膜溶液，由成膜溶液获得的具有优异的耐热和耐化学性的聚（4,4'-氧联二苯基甲酰基亚胺）多孔膜，其孔隙率和孔径可控制 该膜具有优异的电气特性，以及在基材上形成多孔膜的涂覆材料。 特别是，当单独使用溶剂时，作为前体的不良溶剂的聚（4,4'-氧二苯基甲苯酰亚胺）的前体的成膜溶液和至少三种溶剂的混合物，聚 由该成膜溶液获得的“ - 二氧化二苯甲酰基亚胺酰亚胺”和在基材上形成多孔膜的涂布材料。

    Composite sheet electrode
    10.
    发明授权
    Composite sheet electrode 失效
    复合片电极

    公开(公告)号：US5489492A

    公开(公告)日：1996-02-06

    申请号：US285121

    申请日：1994-08-01

    申请人： Keiichi Asami ,  Hideki Takahashi ,  Katsuo Inoue ,  Yoshiaki Echigo ,  Toshiyuki Ohsawa ,  Toshiyuki Kabata ,  Okitoshi Kimura

    发明人： Keiichi Asami ,  Hideki Takahashi ,  Katsuo Inoue ,  Yoshiaki Echigo ,  Toshiyuki Ohsawa ,  Toshiyuki Kabata ,  Okitoshi Kimura

    IPC分类号： H01M4/13 ,  H01M4/60 ,  H01M4/62 ,  H01M4/66 ,  H01M4/02

    CPC分类号： H01M4/60 ,  H01M4/02 ,  H01M4/62 ,  H01M4/66 ,  H01M4/668

    摘要： The present invention provides a composite sheet electrode which has high strength, excellent current collecting properties and which is used efficiently as an active material for an electrode. The electrode has excellent discharge capacities and can be easily formed into an electrode terminal. A cell employing this electrode is also disclosed. The invention also provides a composite sheet electrode having a porosity of 20 to 80% containing 5 to 95% by weight of an active material of an electrode, 1 to 50% by weight of a current collecting material and heat fusible short fibers. The present invention also provides a composite sheet electrode having a porosity of 20 to 80%, which is made up of a composite sheet containing 5 to 95% by weight of an active material as an electrode and 5 to 95% by weight of heat fusible short fibers, as well as a current collecting material layer formed on said composite sheet. The present invention further provides a cell employing the latter-mentioned composite sheet electrode.

    摘要翻译： 本发明提供一种复合片状电极，它具有高强度，优异的集电性能，并被有效地用作电极的活性材料。 电极具有优异的放电容量，并且可以容易地形成电极端子。 还公开了采用该电极的电池。 本发明还提供一种孔隙率为20〜80％的复合片状电极，含有5〜95重量％的电极活性物质，1〜50重量％的电流收集材料和热熔短纤维。 本发明还提供一种孔隙率为20〜80％的复合片状电极，其由含有5〜95重量％的作为电极的活性物质和5〜95重量％的热熔体的复合片材构成 短纤维，以及形成在所述复合片材上的集电材料层。 本发明还提供一种使用后者的复合片电极的电池。