发明名称 CONDUCTIVE POLYMER COMPOSITION AND DEVICE
摘要 A conductive polymer composition which has a resistivity at 20 DEG C. of at most 1.0 ohm-cm and a PTC anomaly of at least 104 contains at most 64% by volume of a crystalline polymeric component and at least 36% by volume of a particulate conductive filler. A preferred conductive filler is carbon black having a DBP number of 60 to 120 cm3/100 g. Compositions of the invention, as well as other conductive polymer compositions are preferably prepared by a method in which the polymeric component and the filler are blended in a first step at a temperature greater than the melting temperature of the polymer, the mixture is then cooled, and the mixture is then mixed in a second step. The resulting composition has a PTC anomaly that is at least 1.2 times the PTC anomaly of the first mixture.
申请公布号 WO9630443(A3) 申请公布日期 1996.11.21
申请号 WO1996US03475 申请日期 1996.03.15
申请人 RAYCHEM CORPORATION 发明人 WARTENBERG, MARK, F.;LAHLOUH, JOHN, G.;TOTH, JAMES
分类号 H01C7/02 主分类号 H01C7/02
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