EP 0791019 A4 19990303 - CATIONIC POLYMER
Title (en)
CATIONIC POLYMER
Title (de)
KATIONISCHES POLYMER
Title (fr)
POLYMERE CATIONIQUE
Publication
Application
Priority
- IT TO940888 A 19941110
- US 9514676 W 19951113
Abstract (en)
[origin: WO9615162A1] The invention provides a water swellable, water-insoluble polymer comprising units derived from a diallylic quaternary ammonium salt monomer cross-linked by a suitable polyfunctional vinyl compound, at least a substantial proportion of the function groups being in basic form. The invention also provides a process for the production of a water-swellable, water-insoluble polymer which comprises polymerising a diallylic quaternary ammonium salt monomer and a suitable polyfunctional vinyl compound as cross-linking agent by cationic polymerisation in an aqueous phase using a free radical catalyst and polymers obtainable thereby. The water absorbent polymers are superabsorbents having improved water absorption properties particularly in respect of saliva solution.
IPC 1-7
IPC 8 full level
A61F 13/49 (2006.01); A61F 13/53 (2006.01); A61L 15/60 (2006.01); C08F 226/04 (2006.01)
CPC (source: EP KR)
A61L 15/60 (2013.01 - EP KR); C08F 226/04 (2013.01 - EP KR)
C-Set (source: EP)
Citation (search report)
No further relevant documents disclosed
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9615162 A1 19960523; AU 4234896 A 19960606; BR 9509638 A 19971014; CN 1093139 C 20021023; CN 1171796 A 19980128; CZ 140797 A3 19971015; CZ 291871 B6 20030618; EP 0791019 A1 19970827; EP 0791019 A4 19990303; HU 216321 B 19990628; HU T77804 A 19980828; IT 1267493 B1 19970205; IT TO940888 A0 19941110; IT TO940888 A1 19960510; JP H10509471 A 19980914; KR 970707182 A 19971201; MX 213693 B 20030411; MX 9703449 A 19980731
DOCDB simple family (application)
US 9514676 W 19951113; AU 4234896 A 19951113; BR 9509638 A 19951113; CN 95197178 A 19951113; CZ 140797 A 19951113; EP 95940680 A 19951113; HU 9801032 A 19951113; IT TO940888 A 19941110; JP 51622996 A 19951113; KR 19970703146 A 19970510; MX 9703449 A 19970509