17-10-2019 дата публикации
Номер: US20190318852A1
Принадлежит:
A double-switching heater includes a double-switching PTC ink deposited on a substrate to form one or more resistors. The double-switching PTC ink has a first resin that provides a first PTC effect at a first temperature range and a second resin that provides a second PTC effect at a second temperature range, where the second temperature range is higher than the first temperature range. The substrate may be a flexible substrate or a rigid substrate, and may bedeformable to generate a three-dimensional structure. The substrate may be: polyester, polyimide, polyamide, polypropylene, thermoplastic polyurethane, fiberglass, cement board, carbon composite materials, polyethylene terephthalate, polyethylene, aluminum, steel, glass composite, molded plastic, high-density polyethylene or styrene ethylene butylene styrene. 126-. (canceled)27. A heating composite comprising an encapsulated double-switching heater disposed between a first material and a second material , wherein the double-switching heater comprises: {'b': 1', '2, 'claim-text': [{'b': 3', '4', '3', '2, 'the second resin provides a second PTC effect within a second temperature range (T, T), where T≥T;'}, '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., 'the first resin provides a first PTC effect within a first temperature range (T, T);'}, 'a double-switching PTC ink deposited on a substrate to form one or more resistors, the double-switching PTC ink comprising a first resin and a second resin, wherein281. The heating composite of claim , wherein the substrate is selected from the group consisting of: polyimide , polypropylene , polyethylene terephthalate , polyethylene , polyurethane , glass fiber and silicone.291. The heating composite of claim , wherein: the first resin is crystalline or semi-crystalline;and the second resin ...
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