Polymer heating element
US8519305B2 · kind B2 · utility
5Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Oct 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2214/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer heating element includes an electrically insulating base substrate, at least a pair of electrodes made of a plurality of thin metal wires formed on the electrically insulating base substrate, a polymer resistor which is not in direct contact with the pair of electrodes and which has PTC characteristics, and conductive layers which are in contact with both the electrodes and the polymer resistor. The conductive layers include at least a resin component, a conductor component and an additive component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.