Global Patent Index - EP 1140334 A1

EP 1140334 A1 20011010 - POLYVINYLIDENE DIFLUORIDE MEMBRANES AND METHODS FOR MAKING SUCH MEMBRANES

Title (en)

POLYVINYLIDENE DIFLUORIDE MEMBRANES AND METHODS FOR MAKING SUCH MEMBRANES

Title (de)

POLYVINYLIDENDIFLUORIDMEMBRANEN UND VERFAHREN ZU DEREN HERSTELLUNG

Title (fr)

MEMBRANES EN DIFLUORURE DE POLYVINYLIDENE ET PROCEDES DE PRODUCTION DE CES MEMBRANES

Publication

EP 1140334 A1 20011010 (EN)

Application

EP 00941430 A 20000615

Priority

  • US 0016446 W 20000615
  • US 35622299 A 19990716

Abstract (en)

[origin: WO0105492A1] Microporous membranes (10) comprising polyvinylidene difluoride and methods for making such membranes are disclosed. The membranes (10), which are not crosslinked and are not contacted with a strong alkali solution during manufacture, are wettable by aqueous solution even after repeated wetting and drying. The membrane includes a support (18) and surfaces (11) treated with a hydrophilic coating. Separately, such membranes are also useful in apparatus (60) for separating a biological fluid into two or more components.

IPC 1-7

B01D 71/28

IPC 8 full level

A61M 1/02 (2006.01); A61M 1/18 (2006.01); B01D 63/16 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); B01D 71/34 (2006.01)

CPC (source: EP)

B01D 63/16 (2013.01); B01D 67/0088 (2013.01); B01D 69/02 (2013.01); B01D 71/34 (2013.01)

Citation (search report)

See references of WO 0105492A1

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 0105492 A1 20010125; AU 5613700 A 20010205; CN 1317987 A 20011017; EP 1140334 A1 20011010; JP 2003504190 A 20030204

DOCDB simple family (application)

US 0016446 W 20000615; AU 5613700 A 20000615; CN 00801434 A 20000615; EP 00941430 A 20000615; JP 2001510571 A 20000615