Composite chemical barrier fabric
US4855178A · kind A · utility
35Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Sep 19, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multilayer chemical barrier fabric is made up of a base sheet of nonwoven polypropylene laminated to a multilayer film sheet having a film of ethylene vinyl alcohol sandwiched between films of nylon with a surface film of linear low-density polyethylene. Fabrics having this structure show resistance to breakthrough within 8 hours for 13 of 15 chemicals listed on the ASTM F1001 chemical test battery and shorter breakthrough times for the other two.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.