EP 1265572 A1 20021218 - IMPROVED SUPERABSORBENT COMPOSITION AND ABSORBENT ARTICLE USING THE SAME
Title (en)
IMPROVED SUPERABSORBENT COMPOSITION AND ABSORBENT ARTICLE USING THE SAME
Title (de)
SUPERABSORBIERENDE ZUSAMMENSETZUNG UND ZUGEHÖRIGER ABSORBIERENDER ARTIKEL
Title (fr)
COMPOSITION SUPERABSORBANTE AMELIOREE ET ARTICLE ABSORBANT DANS LEQUEL ELLE EST UTILISEE
Publication
Application
Priority
- US 0030240 W 20001102
- US 16339399 P 19991104
- US 68682200 A 20001012
Abstract (en)
[origin: WO0132117A1] The present invention is directed to a superabsorbent composition comprising: an underneutralized superabsorbent polymer in which at least 30 % of the functional groups of the polymer are in free acid form; and a layered double hydroxide anionic clay. The underneutralized superabsorbent polymer is believed to act as an Na+ trap and the layered double hydroxide anionic clay is believed to act as a Cl- trap, thereby removing the electrolytes from the solution and improving the absorptive capacity of the superabsorbent composition. The preferred types of layered double hydroxide anionic clays useful in the present invention are hydrotalcite clays with rehydrated hydrotalcite being the most preferred. The present invention also discloses an absorbent article comprising the superabsorbent composition.
IPC 1-7
IPC 8 full level
A61F 13/53 (2006.01); A61F 5/44 (2006.01); A61F 13/15 (2006.01); A61F 13/49 (2006.01); A61L 15/18 (2006.01); A61L 15/60 (2006.01); B01J 20/26 (2006.01)
CPC (source: EP)
A61F 13/531 (2013.01); A61L 15/18 (2013.01); A61L 15/60 (2013.01); A61F 2013/530481 (2013.01)
Citation (search report)
See references of WO 0132117A1
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 0132117 A1 20010510; AU 1455601 A 20010514; CA 2389238 A1 20010510; EP 1265572 A1 20021218; JP 2003525105 A 20030826
DOCDB simple family (application)
US 0030240 W 20001102; AU 1455601 A 20001102; CA 2389238 A 20001102; EP 00976838 A 20001102; JP 2001534328 A 20001102