Patent ID: 8757396

Claim:
A composite membrane comprising a microporous support, a thin film polyamide layer and a coating located upon a surface portion of the thin film polyamide layer, wherein the coating comprises a reaction product of a polyalkylene oxide compound and an oxy-substituted phenyl compound, wherein the polyalkylene oxide compound comprises a functional group capable of reacting with the oxy-substituted phenyl compound, or wherein the polyalkylene oxide compound and oxy-substituted phenyl compound are chemically linked by reaction with a multifunctional compound including multiple reactive functional groups; and wherein the oxy-substituted phenyl compound is represented by at least one of: wherein: X and Y are independently selected from: hydrogen, hydroxyl, halogen, aliphatic, alkoxy, sulfone, sulfoxide, sulfonate, sulfate, thiol, isocyanate, epoxy, amine and anhydrate; R 7 and R 8 are independently selected from hydrogen and aliphatic; and R 12 is independently selected from hydrogen, aliphatic and alicyclic; and wherein X, Y and E are independently selected from: hydrogen, hydroxyl, halogen, aliphatic, alkoxy, sulfone, sulfoxide, sulfonate, sulfate, thiol, isocyanate, epoxy, amine and anhydrate.