| (19) |
 |
|
(11) |
EP 0 257 868 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
17.01.1990 Bulletin 1990/03 |
| (43) |
Date of publication A2: |
|
02.03.1988 Bulletin 1988/09 |
| (22) |
Date of filing: 05.08.1987 |
|
| (51) |
International Patent Classification (IPC)4: D04H 1/56 |
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI |
| (30) |
Priority: |
22.08.1986 US 899343
22.08.1986 US 899522
|
| (71) |
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY |
|
St. Paul,
Minnesota 55133-3427 (US) |
|
| (72) |
Inventors: |
|
- Eian, Gilbert L
Minnesota Mining and
St. Paul
Minnesota 55144-1000 (US)
- Cheney, Paul G
Minnesota Mining and
St. Paul
Minnesota 55144-1000 (US)
|
| (74) |
Representative: Baillie, Iain Cameron et al |
|
c/o Ladas & Parry
Altheimer Eck 2
80331 München
80331 München (DE) |
|
| |
|
| (54) |
Durable melt-blown sheet material |
(57) A durable fibrous sheet material comprised of a melt-blown fiber web having a plurality
of reinforcing fibers extending therethrough is provided. The reinforcing fiber 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 can be dispersed in the layer of melt-blown fibers. Such
particles 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.