| (19) |
 |
|
(11) |
EP 0 681 971 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
09.10.1996 Bulletin 1996/41 |
| (43) |
Date of publication A2: |
|
15.11.1995 Bulletin 1995/46 |
| (22) |
Date of filing: 09.05.1995 |
|
| (51) |
International Patent Classification (IPC)6: B65D 81/26 |
|
| (84) |
Designated Contracting States: |
|
BE CH DE FR GB IT LI |
| (30) |
Priority: |
10.05.1994 US 240224
|
| (71) |
Applicant: United Catalysts Incorporated |
|
Louisville
Kentucky 40232 (US) |
|
| (72) |
Inventors: |
|
- Klett, George
Belen,
New Mexico 87002 (US)
- Cordonnier, Paul,
Société d'Exploitation
B.P. No. 11,
F-77670 Saint-Mammes (FR)
- Witte, Stephan,
Société d'Exploitation
B.P. No. 11,
F-77670 Saint-Mammes (FR)
|
| (74) |
Representative: Patentanwälte
Dipl.-Ing. R. Splanemann
Dr. B. Reitzner
Dipl.-Ing. K. Baronetzky |
|
Tal 13
80331 München
80331 München (DE) |
|
| |
|
| (54) |
Liquid absorbing packet |
(57) A packet for immobilizing a liquid comprised of a liquid permeable sheet formed into
an envelope wherein two of the sides of the sheet are sealed to form a pair of end
seals wherein the two remaining sides of the sheet are sealed together to form a center
seal, wherein contained within the envelope is a quantity of swellable absorbent granules
which swell to a size greater than the size of those granules in their dry condition,
and wherein as the liquid absorbing granules swell, they break the center seal of
the envelope to release the liquid absorbing granules to the outside environment of
the package to absorb liquid. Also disclosed is a process for their production.