Composite membrane and method for forming the same
US7416761B2 · kind B2 · utility
3Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2006 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | May 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses discloses a composite PTFE membrane comprising an expanded PTFE membrane as substrate and a sintered porous PTFE membrane on top of it. The porous PTFE membrane on top has porous structure with interconnected channels formed with a sintering process that fuses the PTFE fine powders coated on the ePTFE membrane. Furthermore, the present invention discloses a method for forming the composite PTFE membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.