Conductive polymer compositions and devices
US4545926A · kind A · utility
515Cited by
12References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Conductive polymer compositions comprises a polymeric material having dispersed therein (a) conductive particles composed of a highly conductive material and (b) a particulate filler. The compositions exhibit a positive temperature coefficient of resistivity and undergo a large increase in resistivity as the temperature increases above a certain value. The compositions are useful in preparing electrical devices such as current limiting devices, heaters, EMI shields and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.