FREMGANGSMAATE VED FREMSTILLING AV ET SELVREGULERENDE, BAANDFORMET, ELEKTRISK MOTSTANDSELEMENT

摘要

Described herein are self-regulating conductive articles comprised of an extruded length of polymeric material containing not more than about 15 percent by weight conductive carbon black, the resistivity of the extrudate following prolonged exposure to temperatures in excess of the crystalline melting point or range of the polymeric matrix in which the black content satisfies the equation: 2 L + log10 R +23{0 45.