Process for impregnating a capacitor with a non-halogenated impregnant
US4190682A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Oct 10, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/221
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for impregnating capacitors with a gas absorbing impregnant is disclosed including the steps of purefying a phthalate ester by adsorptive filtration and adding 5 to 30% by volume of an alkene having from 10 to less than 20 carbon atoms and 0.1 to 10% by volume of an epoxy stabilizer to the phthalate ester prior to impregnating the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.