Composite temperature sensitive element and face heat generator comprising the same
US5415934A · kind A · utility
Inventor
Key dates
| Filing date | Jan 21, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Jan 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2787
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a composite temperature-sensitive element having temperature self-controlling characteristics, which comprises graphite or carbon black, a lowly dimensional substance composed mainly of a crosslinked polymer and a linear polymer, and optionally, an inorganic compound, said lowly dimensional substance and said inorganic compound being conjugated with the graphite or carbon black. In this temperature-sensitive element, the change of the resistance value with the lapse of time is very small even when the element is repeatedly used, stable temperature-electroconductivity characteristics are manifested, there is no risk of local super-heating, and temperature self-detecting and controlling functions are manifested at various stages as the sensor of the molecule level. Furthermore, this temperature-sensitive element is pliable and shows an excellent elasticity even at the temperature elevation, and the temperature-sensitive element has properties of a flexible elastomer having an appropriate rigidity and can be processed into various shapes. Moreover, the element can be easily prepared at a low cost and it is expected that the element will be widely used in various fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.