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公开(公告)号：US06198377B1
公开(公告)日：2001-03-06
申请号：US08765961
申请日：1997-01-10
申请人： Tadataka Yamazaki , Masahiko Ito , Kazuyuki Kohara
发明人： Tadataka Yamazaki , Masahiko Ito , Kazuyuki Kohara
IPC分类号： H01C304
摘要： A plastic thermistor comprising a polyamide composition which comprises 100 wt. parts of a polyamide and 5.3 to 30 wt. parts of zinc iodide, or a polyamide composition which comprises a polyamide, an iodine-containing compound, and a metal oxide such as zinc oxide. Ion carrier properties of a metal iodide greatly increases temperature dependence of impedance, and the metal oxide such as zinc iodide functions as a receptor for iodide ions and prevents the formation of a metal iodide on the surfaces of metal electrodes. Furthermore, a linked cycle can be established that zinc oxide forms zinc iodide and then formed zinc iodide functions to increase the stability of half-wave current passage. Accordingly, the thermal stability of the plastic thermistor is improved for a long time, and the heat resistance stability of temperature sensors or thermosensitive heaters comprising the plastic thermistor is improved greatly.
摘要翻译： 包括聚酰胺组合物的塑料热敏电阻，其包含100重量％ 聚酰胺的一部分和5.3〜30wt。 碘化锌的部分或者包含聚酰胺，含碘化合物和金属氧化物如氧化锌的聚酰胺组合物。金属碘化物的载流子特性大大增加了阻抗的温度依赖性，并且诸如锌的金属氧化物 碘化物作为碘离子的受体发挥作用，防止在金属电极表面形成金属碘化物。 此外，可以确定氧化锌形成碘化锌，然后形成碘化锌的连接循环，以增加半波电流通过的稳定性。 因此，塑料热敏电阻的热稳定性长时间得到改善，并且包括塑料热敏电阻的温度传感器或热敏加热器的耐热稳定性大大提高。
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公开(公告)号：US5196145A
公开(公告)日：1993-03-23
申请号：US360146
申请日：1989-06-01
摘要： The present invention provides a temperature self-controlling heating composition containing crystalline resins, elastomers and electrically conductive particles, and additional material for giving an affintiy to the resins and the elastomers if both are not compatible, in which the electrically conductive particles are stably dispersed in the medium of the resin and the elastomer, and the agglomeration of the dispersed particles can be prevented, even if the temperature exceeds the melting point of the crystalline resin because the apparent viscosity of the resin is not lowered so much by the network structure of the elastomers, so that the electrical resistance does not become lower even at such a high temperature.
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