ELECTRICALLY CONDUCTIVE PTC INK WITH DOUBLE SWITCHING TEMPERATURES
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United States of America Patent
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Feb 15, 2024
app pub date -
Oct 23, 2023
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Jun 12, 2014
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Abstract
A double-switching PTC ink comprises a first resin and a second resin; the first resin provides a first PTC effect within a first temperature range (T1, T2); the second resin provides a second PTC effect within a second temperature range (T3, T4), where T3≥T2; the first resin has an NTC effect above the first temperature range; the second PTC effect is greater than the first PTC effect; and the second PTC effect overlaps with, and is greater than, the NTC effect of the first resin.
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