Sandwich insulation for increased corona resistance
US5989702A · kind A · utility
13Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1996 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sandwich type insulation for electrical machinery comprising a laminate of a polymeric material such as polyimide which contains particles of an inorganic corona resistant material, said polymeric material being bonded to mica paper consisting of mica, wherein said mica paper may be impregnated with polymeric resin containing particles of inorganic corona resistant material. The resultant insulation may be used as a tape or wrapper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.