Gas-impermeable elastic membrane and hydropnematic accumulator equipped with this measure
US6350529B1 · kind B1 · utility
9Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1998 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Feb 17, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3175
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas-impermeable elastic membrane including a co-polymeric gas-impermeable film including OH groups, positioned between two layers of a co-polymer containing blocks of polyamides and of polyesters, with a rubber coating on at least one of the two layers, as well as a method of manufacturing the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.