EP 1415025 A1 20040506 - METHOD FOR PRODUCING CELLULOSE SHAPED BODIES WITH SUPER-ABSORBENT PROPERTIES
Title (en)
METHOD FOR PRODUCING CELLULOSE SHAPED BODIES WITH SUPER-ABSORBENT PROPERTIES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON CELLULOSISCHEN FORMKÖRPERN MIT SUPERABSORBIERENDEN EIGENSCHAFTEN
Title (fr)
PROCEDE POUR PRODUIRE DES CORPS FACONNES CELLULOSIQUES SUPERABSORBANTS
Publication
Application
Priority
- DE 10137171 A 20010731
- EP 0208529 W 20020731
Abstract (en)
[origin: WO03012182A1] The invention relates to a method for producing cellulose shaped bodies with a high water-retention capacity, according to the dry/wet extrusion method. According to said method, a solution of between 5 and 20 mass % cellulose in a tertiary amine oxide is formed, the solution is extruded, the extrudate is drawn in a non-precipitating medium and the shaped bodies are precipitated in an aqueous or alcoholic precipitation bath. The method is characterised in that a solution containing between 0.01 and 250 mass %, (in relation to the cellulose), of at least one super-absorber with a particle size of </= 100 mu m is extruded. The fibres, films and composite materials thus formed are characterised by a high water-retention capacity and are suitable for producing sanitary products, nappies or disposable nappies, sanitary towels, tampons, incontinence products, absorbent plasters, coverings for wounds, dressings, bandages, cleaning cloths, moisture-absorbent clothing, bed undersheets, filter materials or filters, packaging materials or cable sheathing.
IPC 1-7
IPC 8 full level
A61F 13/53 (2006.01); D01F 2/00 (2006.01); A61F 5/44 (2006.01); A61F 13/49 (2006.01); A61L 15/00 (2006.01); A61L 15/28 (2006.01); A61L 15/60 (2006.01); B01D 39/18 (2006.01); C08J 5/18 (2006.01); C08L 1/02 (2006.01); D01F 1/10 (2006.01)
CPC (source: EP KR US)
A61L 15/28 (2013.01 - EP US); C08L 1/02 (2013.01 - EP US); D01F 1/10 (2013.01 - EP US); D01F 2/00 (2013.01 - EP KR US); Y10T 428/31971 (2015.04 - EP US); Y10T 442/2057 (2015.04 - EP US)
C-Set (source: EP US)
Citation (search report)
See references of WO 03012182A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03012182 A1 20030213; AR 034961 A1 20040324; BR 0211600 A 20040824; CA 2454420 A1 20030213; CA 2454420 C 20090217; CN 1285775 C 20061122; CN 1561411 A 20050105; DE 10137171 A1 20030213; EA 005872 B1 20050630; EA 200400212 A1 20040826; EP 1415025 A1 20040506; JP 2005507466 A 20050317; KR 100588280 B1 20060612; KR 20040028969 A 20040403; PL 365477 A1 20050110; US 2004265612 A1 20041230; US 7052775 B2 20060530; ZA 200400764 B 20041206
DOCDB simple family (application)
EP 0208529 W 20020731; AR P020102913 A 20020731; BR 0211600 A 20020731; CA 2454420 A 20020731; CN 02819337 A 20020731; DE 10137171 A 20010731; EA 200400212 A 20020731; EP 02767288 A 20020731; JP 2003517351 A 20020731; KR 20047001563 A 20020731; PL 36547702 A 20020731; US 48480404 A 20040730; ZA 200400764 A 20040130