High-voltage insulating material comprising anti-tracking and erosion inhibiting compounds with insulating polymers
US4100089A · kind A · utility
16Cited by
19References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1976 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Jan 16, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved high voltage insulating material comprising one or more polymers and an anti-tracking and erosion inhibiting composition comprising a hydrate of alumina and one or more compounds selected from the groups consisting of nickel phosphate, phosphinic acid or a derivative thereof, phosphonous acid or a derivative thereof, and phosphonic acid or a derivative thereof. The composition functions to prevent failure by tracking and to substantially retard failure by erosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.