Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Douglas L. Gin0
Meijuan Zhou0
Richard D. Noble0
Date of Patent
October 20, 2009
0Patent Application Number
105294090
Date Filed
October 3, 2003
0Patent Primary Examiner
Patent abstract
The invention provides composite nanofiltration membranes (FIG. 5) with lyotropic liquid crystal (LLC) polymer porous membranes (30) attached to a porous support (20). The LLC membranes are prepared from LLC monomers which form the inverted hexagonal or bicontinuous cubic phase. The arrangement, size, and chemical properties of the pores can be tailored on the molecular level. The composite membrane of the invention is useful for separation processes involving aqueous and nonaqueous solutions as well as gases. Methods for making and using the composite nanofiltration membranes of the inventions are also provided.
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