Materials having non-linear electrical resistance characteristics
US4252692A · kind A · utility
52Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1975 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Dec 16, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31924
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer composition containing silicon carbide of a critical maximum average particle size can be processed into heat-shrinkable articles possessing nonlinear electrical resistance characteristics. An embodiment of the invention provides a heat-shrinkable article comprising a laminate of a layer of elastomer, including silicon carbide particles, and a layer of a heat-shrinkable polymeric material. The elastomeric layer may be a blend of a rubbery polymer and a low density polyethylene having dispersed therein particulate silicon carbide of particle size finer than about 300 grit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.