Inhibition of liquid and vapor transmission through plastic-substrate seals
US3992224A · kind A · utility
12Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1974 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Nov 29, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Powder coating a substrate with a polyolefin or preferably a polyolefin-polycarbonamide blend before contacting the substrate with a plastic resin creating a plastic-substrate seal, inhibits liquid and vapor transmission through the seal. The application of this invention to battery terminal bushings prevents unsightly corrosion about the battery terminal which is caused by "wicking" of battery acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.