Adhesive, elastomeric gel impregnating composition
US6403685B1 · kind B1 · utility
0Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Aug 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/221
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved capacitor roll with alternating film and foil layers is impregnated with an adhesive, elastomeric gel composition. The gel composition is a blend of a plasticizer, a polyol, a maleic anhydride that reacts with the polyol to form a polyester, and a catalyst for the reaction. The impregnant composition is introduced to the film and foil layers while still in a liquid form and then pressure is applied to aid with impregnation. The impregnant composition is cured to form the adhesive, elastomeric gel. Pressure is maintained during curing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.