Patent ID: 9352286
Filing Date: 2016-05-31
CPC Classification: B01D

Claim Text:
1. A composite filtration membrane, comprising: a porous support membrane layer; and an anti-fouling selective layer disposed on the porous support membrane layer; the selective layer comprising a interfacially crosslinked polymer of formula (15): wherein each —R —R —R —X —R m is a positive integer greater than or equal to 2, j represents the number of bridging groups R k represents the number of backbones of the crosslinked polymer which are bound to one bridging group R a′, b′, c′, and y′ are positive numbers, n is a positive integer greater than 1, —K —R —R —Z —R -L —R -D′-Q -Q —R -D′- is a divalent radical independently selected from the group consisting of —C(═O)—, —S(═O)