Asymmetric gel-filled microporous membranes
AssigneeMcMaster University
InventorsRonald F. Childs, Alicja M. Mika, Jijun Ge, Chris McCrory
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Abstract
The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membrane than the density at the other major surface. The membranes are useful for separating matter from liquids and display good flux and good rejection at low pressure.
Claims33
An asymmetric membrane comprising a microporous membrane substrate, in at least some of whose pores is contained a crosslinked gel which forms a continuous or substantially continuous layer, the density of the crosslinked gel being greater at or adjacent to a first major surface of the membrane than the density at or adjacent to a second major surface of the membrane.
Dependencies are inferred from the claim text.