PTC conductive composition containing a low molecular weight polyethylene processing aid
US6620343B1 · kind B1 · utility
11Cited by
10References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides polymeric PTC compositions and electrical PTC devices with higher voltage capability and improved electrical stability. The PTC compositions of the present invention exhibit improved processability and include at a minimum an organic polymner, a conductive filler and a low molecular weight polyethylene processing aid. Depending on device design, the composition can be used in low to high voltage applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.