VONTRON MEMBRANE TECHNOLOGY CO., LTD.
VONTRON MEMBRANE TECHNOLOGY CO., LTD. Patent applications | ||
Patent application number | Title | Published |
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20080203013 | OXIDATION-RESISTANT COMPOSITE REVERSE OSMOSIS MEMBRANE - Disclosed is a oxidation resistant composite reverse osmosis membrane, comprising a porous support and a polyamide layer, in which the polyamide layer is modified by an agent so that the membrane retains a salt rejection of at least 85% after being subjected to an aqueous solution of NaClO having a concentration of about 2,000 to 30,000 ppm for about one hour. A process of preparing the membrane is also disclosed. | 08-28-2008 |