abstract |
A process is provided for removing microbubbles from a liquid by filtration with a composite porous membrane which is formed from a porous polymeric membrane having an average pore size between about 0.01 and 0.03 microns on which is directly coated a cross-linked polymer derived from N,N-methylenebisacrylamide (MBAM) optionally containing dimethylacrylamide (DMAM). |