EP 0791019 A1 19970827 - 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)
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