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US 11,148,100 B2Granted
Hollow fiber membrane for filtration of liquids
AssigneePak Vitae (Private) Limited
InventorsShayan Sohail, Arslan Ahmed, Hafiz Usama Tanveer
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AssigneePak Vitae (Private) Limited
InventorsShayan Sohail, Arslan Ahmed, Hafiz Usama Tanveer
Estimating the term…
The present invention provides an intrinsically anti-microbial hollow fiber membrane for filtration of liquids. The membrane comprises a plurality of porous hollow bilayer membrane fibers wherein the liquid enters from outside of the fiber, passing through the porous membrane into the lumen of the fiber and coming out from the hollow ending of the fiber, wherein this configuration provides a liquid outside-in arrangement and retains the filtrate outside. It means that membrane of the invention has built in characteristics to act against microbes in order to provide the use with a safe liquid free from microbes. The outer side or outer wall of the hollow fibers may be configured to become hydrophobic whereas inner side or inner wall of the hollow fiber membrane may be configured to become hydrophilic to enhance the water permeability to a great extent. The hollow fiber membrane may be configured to give it an intrinsic anti-microbial capability. A device containing above said membrane has also been disclosed.
An intrinsically anti-microbial hollow fiber membrane module for filtration of liquids comprising a plurality of porous hollow membrane fibers, wherein the hollow membrane fibers are formed of a polymer or a polymer mix, and an antimicrobial substance selected from zinc, zinc oxide or zinc salt, or the zinc, zinc oxide or the zinc salt in an aqueous or organic solvent, directly embedded into the polymer mix, wherein the hollow membrane fibers comprise antimicrobial hollow membrane fibers,
Dependencies are inferred from the claim text.