EP 1017484 A1 20000712 - A PROCESS FOR REPAIRING MEMBRANE IMPERFECTIONS
Title (en)
A PROCESS FOR REPAIRING MEMBRANE IMPERFECTIONS
Title (de)
VERFAHREN ZUM REPARIEREN VON MEMBRANDEFEKTEN
Title (fr)
PROCEDE DE REMISE EN ETAT D'UNE MEMBRANE PRESENTANT DES IMPERFECTIONS
Publication
Application
Priority
- IL 9800409 W 19980825
- IL 12163297 A 19970826
Abstract (en)
[origin: WO9910089A1] The invention provides a process for plugging at least one imperfection found in a membrane comprising applying a solution containing a reactive component in dilute concentration to the surface of the membrane under pressure, the components having low reaction rates at the dilute concentration, wherein at least one reactive component is at least partially entrapped within the imperfection for sufficient time so that a reaction with another reactive component is induced as a result of a higher level of local accumulation and concentration of the components within the imperfection, whereby there are formed covalently linked reaction products within the imperfection thus permanently plugging the same.
IPC 1-7
IPC 8 full level
B01D 65/10 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01)
CPC (source: EP)
B01D 65/108 (2013.01); B01D 67/0088 (2013.01)
Citation (search report)
See references of WO 9910089A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9910089 A1 19990304; AU 8883798 A 19990316; EP 1017484 A1 20000712; IL 121632 A0 19980208; IL 121632 A 20000813; JP 2001513436 A 20010904
DOCDB simple family (application)
IL 9800409 W 19980825; AU 8883798 A 19980825; EP 98940534 A 19980825; IL 12163297 A 19970826; JP 2000507465 A 19980825