Porous composite membrane and method for making the same

Details Porous composite membrane and method for making the same Porous composite membrane and method for making the same

2003-08-22

2009-12-08

Vo, Hai (Department: 1794)

Liquid purification or separation

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Material

C210S500270, C210S500330, C428S319300, C428S319700

Reexamination Certificate

active

07628917

ABSTRACT:
The invention provides composite porous membranes comprising a porous hydrophobic substrate coated with difunctional surface-modifying molecules. The difunctional surface-modifying molecules provide a hydrophilic surface without forming branches of interconnected polymer molecules in the pores. The invention also provides a method for making composite porous membranes, such as a composite hydrophilic membrane with reduced concentration of surface modifying molecules required to coat a hydrophobic substrate.

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