EP 1311553 A1 20030521 - HIGH MOLECULAR WEIGHT CATIONIC POLYMERS, PREPARATION METHOD AND USES THEREOF
Title (en)
HIGH MOLECULAR WEIGHT CATIONIC POLYMERS, PREPARATION METHOD AND USES THEREOF
Title (de)
KATIONISCHE POLYMERE MIT HOHEM MOLEKULARGEWICHT, VERFAHREN ZUR DEREN HERSTELLUNG UND DEREN ANWENDUNGEN
Title (fr)
POLYMERES CATIONIQUES DE HAUT POIDS MOLECULAIRE, PROCEDE POUR LEUR PREPARATION, ET LEURS APPLICATIONS
Publication
Application
Priority
- FR 0102347 W 20010719
- FR 0010092 A 20000727
Abstract (en)
[origin: WO0210225A1] The invention concerns a method for preparing high molecular weight cationic polymers based on dialkyl diallyl ammonium salts in bead form by reverse suspension polymerisation. Said method uses a monomer or a mixture of monomers based on dialkyl diallyl ammonium salts at a concentration ranging between 67 and 77 wt. % and preferably between 68 and 72 wt. % of active substance. Said method enables to polymerise said type of monomer without developing specific stabilising system, without seeded polymerisation, without even adding surfactants to the formulation, without distillation in certain important cases, and while avoiding any risk of solidification. The invention also concerns the resulting polymers and their industrial use, in particular paper making, water treatment, mining, cosmetics, textile, and generally in all industrial techniques of coagulation/flocculation.
IPC 1-7
IPC 8 full level
C08F 2/18 (2006.01); C08F 2/32 (2006.01); C08F 26/04 (2006.01)
CPC (source: EP US)
C08F 2/18 (2013.01 - EP US); C08F 2/32 (2013.01 - EP US); C08F 26/04 (2013.01 - EP US)
Citation (search report)
See references of WO 0210225A1
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 0210225 A1 20020207; AU 7760501 A 20020213; EP 1311553 A1 20030521; FR 2812295 A1 20020201; FR 2812295 B1 20030131; US 2004030039 A1 20040212
DOCDB simple family (application)
FR 0102347 W 20010719; AU 7760501 A 20010719; EP 01955439 A 20010719; FR 0010092 A 20000727; US 31259903 A 20030805