Durable melt-blown particle-loaded sheet material
US4868032A · kind A · utility
64Cited by
23References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1986 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Aug 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/668
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A permeable sheet material comprised of particle-loaded, melt-blown fiber web having a plurality of reinforcing fibers extending therethrough is provided. The reinforcing fibers are needled through the web of melt-blown fibers and are then bonded to fibers on the opposing faces of the layer of melt-blown fibers to hold the reinforcing fibers in position. Solid particles dispersed in the layer of melt-blown fibers are preferably vapor-sorptive particles, e.g., activated carbon, so that the sheet material will sorb vapors passing therethrough. The sheet material is particularly useful as a component of a chemical protective garment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.