TITLE: PLASMAPHERESIS MEMBRANE AND PROCESS FOR THE PREPARATION THEREOF
European Patent EP0044958
 B1

ABSTRACT:
Abstract not available for EP0044958
Abstract of corresponding document: US4608172
Plasmapheresis membranes of hydrophilic polycarbonates are disclosed,
comprising polycondensates of bisphenol A and a polyalkylene oxide.
These membranes which have a regular pore structure with smoothly
rounded pores with openings without sharp edges, have an average pore
diameter of about 0.01 to 0.8 mu , a porosity preferably above 65%, and
a thickness of between about 50 and 300 mu . Processes for preparing
these membranes are also disclosed, including casting a 3 to 20 weight
percent polycarbonate polymer solution onto a smooth surface,
contacting the layer with a gelling medium prior to precipitation of
the membrane, and subsequent precipitation of the gelled layer to form
the membrane.

INVENTORS:
Goehl, Hermann Joseph
Buck, Reinhold Johann

APPLICATION NUMBER: EP19810105019
PUBLICATION DATE: 10/31/1984
FILING DATE: 06/29/1981

ASSIGNEE: Gambro, Dialysatoren K. G.
INTERNATIONAL CLASSES: B01D71/50; A61M1/16; B01D69/02; C08G64/18; C08G64/40; B01D71/00;
A61M1/16; B01D69/00; C08G64/00; (IPC1-7): B01D13/04; A61M1/03;
C08L69/00
EUROPEAN CLASSES: B01D71/80; B01D69/02; C08G64/18B; C08G64/40