EP 1337835 A1 20030827 - METHOD AND DEVICE FOR DETERMINING THE SWELLING BEHAVIOR OF POLYMER GELS UNDER PRESSURE
Title (en)
METHOD AND DEVICE FOR DETERMINING THE SWELLING BEHAVIOR OF POLYMER GELS UNDER PRESSURE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG DES QUELLVERHALTENS VON POLYMERGELEN UNTER DRUCK
Title (fr)
PROCEDE ET DISPOSITIF POUR DETERMINER LE GONFLEMENT DE GELS POLYMERES SOUS PRESSION
Publication
Application
Priority
- DE 10055448 A 20001109
- EP 0112939 W 20011108
Abstract (en)
[origin: WO0239093A1] The invention relates to a method for determining the swelling behavior and the swelling kinetics of super absorbent materials (9) such as polymer gels, whereby a defined volume of dry super absorbent materials (9) is introduced into a measuring vessel (7), and a pressure force (12) is exerted onto the super absorbent material (9) by means of an element (4) that can be displaced inside the measuring vessel (7). The expansion of the super absorbent material (9) inside the chamber (14) is continuously detected by means of a non-contact detection of the change in height of a tube (4), which delimits the chamber (14), is guided inside a measuring vessel (7), and which is provided with a height marking (6).
IPC 1-7
IPC 8 full level
G01N 19/10 (2006.01); G01N 33/44 (2006.01)
CPC (source: EP US)
G01N 19/10 (2013.01 - EP US)
Citation (search report)
See references of WO 0239093A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0239093 A1 20020516; AU 1829102 A 20020521; DE 10055448 A1 20020523; EP 1337835 A1 20030827; JP 2004513362 A 20040430; US 2004014226 A1 20040122; US 7189575 B2 20070313
DOCDB simple family (application)
EP 0112939 W 20011108; AU 1829102 A 20011108; DE 10055448 A 20001109; EP 01993823 A 20011108; JP 2002541368 A 20011108; US 39949203 A 20030417