| 摘要 |
<p>A positive temperature coefficient (PTC) resistor composition comprising: (a) an electrically conductive material in finely particulated form selected from silver, graphite, graphite/carbon, nickel, copper, silver coated copper, and aluminum, said conductive material being dispersed in a polymer thick film (PTF) system; and (b) a semi-crystalline polymer which exhibits significant volume increases via phase transitions at elevated temperatures, said semi-crystalline polymer being dispersed in the polymer thick film (PTF) system.</p> |
