EP 2257574 A1 20101208 - METHOD FOR MANUFACTURING WATER-ABSORBING POLYMER PARTICLES WITH A LOW CENTRIFUGE RETENTION CAPACITY
Title (en)
METHOD FOR MANUFACTURING WATER-ABSORBING POLYMER PARTICLES WITH A LOW CENTRIFUGE RETENTION CAPACITY
Title (de)
VERFAHREN ZUR HERSTELLUNG WASSERABSORBIERENDER POLYMERPARTIKEL MIT NIEDRIGER ZENTRIFUGENRETENTIONSKAPAZITÄT
Title (fr)
PROCÉDÉ POUR PRODUIRE DES PARTICULES POLYMÈRES HYDROPHILES AYANT UNE FAIBLE CAPACITÉ DE RÉTENTION APRÈS CENTRIFUGATION
Publication
Application
Priority
- EP 2009053030 W 20090316
- EP 08153136 A 20080320
- EP 09721312 A 20090316
Abstract (en)
[origin: WO2009115472A1] Method for manufacturing water-absorbing polymer particles with a low centrifuge retention capacity through polymerization in a continuous kneading reactor under an inert gas volumetric flow of no greater than 10 m3/h per m3 of reactor volume.
IPC 8 full level
C08F 2/01 (2006.01); C08F 2/10 (2006.01); C08F 2/18 (2006.01)
CPC (source: EP US)
C08F 2/01 (2013.01 - EP US); C08F 2/10 (2013.01 - EP US); C08F 2/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2009115472A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009115472 A1 20090924; CN 101970505 A 20110209; EP 2257574 A1 20101208; JP 2011515520 A 20110519; US 2011015362 A1 20110120; US 8497336 B2 20130730
DOCDB simple family (application)
EP 2009053030 W 20090316; CN 200980109035 A 20090316; EP 09721312 A 20090316; JP 2011500168 A 20090316; US 92040309 A 20090316