05066401 is referenced by 92 patents and cites 15 patents.

Membranes are based on a homogeneous mixture of polyvinylidene fluoride and a second polymer which can be rendered hydrophilic by chemical reaction. The membranes contain 70 to 98 percent by weight of polyvinylidene fluoride and 2 to 30 percent by weight of a polymer formed essentially from polymethyl and/or polyethyl acrylate, and have a maximum pore size in the range from 0.005 to 10 .mu.m. They can be rendered hydrophilic by means of at least partial hydrolysis, at least partial transesterification with an alcohol which is at least trihydric and contains 3 to 12 carbon atoms, and/or at least partial aminolysis with an amino compound having 2 to 8 carbon atoms. The flat or capillary membranes which have been rendered hydrophilic can contain on their total surface 0.001 to 10 milliequivalents/g of membrane, preferably 0.01 to 5 m equivalents/g of membrane, of --COOH, --OH or --NH.sub.2 groups or corresponding mixtures of these hydrophilic functional groups. Such membranes can be used, in particular, for immobilizing biochemically active compounds.

Title
Flat or capillary membrane based on a homogeneous mixture of polyvinylidene fluoride and a second polymer which can be rendered hydrophilic by chemical reaction
Application Number
7/552051
Publication Number
5066401
Application Date
July 13, 1990
Publication Date
November 19, 1991
Inventor
Helmut Volker
Klingenberg
DE
Lothar Krauss
Erlenbach
DE
Ernst Spindler
Obernburg
DE
Gunter Eberhard
Erlenbach
DE
Heinz Dieter Sluma
Grossostheim
DE
Heinz Joachim Muller
Worth am Main
DE
Agent
Oliff & Berridge
Assignee
AKZO
NL
IPC
B01D 71/34
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