Irradiated expanded polytetrafluoroethylene composites, and devices using them, and processes for making them
US5019140A · kind A · utility
77Cited by
21References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1988 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Dec 21, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/339
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Radiation resistant composites made of adjacent layers of a microporous hydrophobic polytetrafluoroethylene layer and one or more supporting layers made of woven metal material or woven synthetic organic polymeric material and a microporous hydrophobic polytetrafluoroethylene membrane are described. Filtration devices containing the composite are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.