EP 1056789 A1 20001206 - CROSS-LINKED POLYMERS CAPABLE OF SWELLING
Title (en)
CROSS-LINKED POLYMERS CAPABLE OF SWELLING
Title (de)
VERNETZTE QUELLFÄHIGE POLYMERE
Title (fr)
POLYMERES GONFLANTS RETICULES
Publication
Application
Priority
- DE 19807504 A 19980221
- EP 9901065 W 19990218
Abstract (en)
[origin: DE19807504A1] 1,4,6,9-Tetraoxa-5-silaspiro(4.4)nonanes (diglycol silicates) (I) are used as crosslinking agents for surface crosslinking of particles of superabsorbing polymer. 1,4,6,9-Tetraoxa-5-silaspiro(4.4)nonanes (diglycol silicates) of formula (I) are used as crosslinking agents for surface crosslinking of particles of superabsorbing polymer: R, R' = hydrogen (H) or 1-6 carbon (C) alkyl. An Independent claim is also included for surface-crosslinked superabsorbing polymer produced in this way.
IPC 1-7
IPC 8 full level
A61L 15/00 (2006.01); A61L 15/60 (2006.01); C07F 7/07 (2006.01); C08F 8/42 (2006.01); C08G 85/00 (2006.01); C08J 3/24 (2006.01)
CPC (source: EP)
A61L 15/60 (2013.01); C08F 8/42 (2013.01); C08J 3/245 (2013.01); C08J 2300/14 (2013.01)
Citation (search report)
See references of WO 9942496A1
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
DE 19807504 A1 19990826; AU 3253199 A 19990906; BR 9908078 A 20001024; CA 2319786 A1 19990826; CN 1291203 A 20010411; EP 1056789 A1 20001206; ID 28466 A 20010524; JP 2002504568 A 20020212; WO 9942496 A1 19990826
DOCDB simple family (application)
DE 19807504 A 19980221; AU 3253199 A 19990218; BR 9908078 A 19990218; CA 2319786 A 19990218; CN 99803148 A 19990218; EP 9901065 W 19990218; EP 99934290 A 19990218; ID 20001591 A 19990219; JP 2000532448 A 19990218