| http://www.w3.org/ns/prov#value | - Polymeric microporous membranes (depicted as, for example, 14 and 15 in FIG. 1) may be made from polyolefins such as polypropylene and polyethylene, polysulfones, polytetrafluoroethylene (PTFE), polyamide, polyester, cellulose acetate and other cellulose derivatives, and the like, as well as from combinations of these polymers.
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