公开(公告)号：US20180257042A1

公开(公告)日：2018-09-13

申请号：US15755584

申请日：2016-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonathan F. Hester ,  Angelines A. Castro Forero ,  Gregory M. Jellum ,  Jerald K. Rasmussen ,  Kannan Seshadri ,  Clinton P. Waller, Jr.

IPC: B01D69/12 ,  B01D71/40 ,  B01D71/78 ,  B01D63/14 ,  B01D63/10 ,  B01D67/00 ,  B01D69/02 ,  C07K1/34

Abstract: Described herein is a filtration media comprising: (i) a first filtration medium comprising an anion exchange nonwoven substrate, wherein the anion exchange nonwoven substrate comprises a plurality of quaternary ammonium groups; and (ii) a second filtration medium comprising a functionalized microporous membrane wherein the functionalized microporous membrane comprises a plurality of guanidyl groups; wherein the first filtration medium is positioned upstream of the second filtration medium.

公开(公告)号：US10722848B2

公开(公告)日：2020-07-28

申请号：US15755584

申请日：2016-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonathan F. Hester ,  Angelines A. Castro Forero ,  Gregory M. Jellum ,  Jerald K. Rasmussen ,  Kannan Seshadri ,  Clinton P. Waller, Jr.

IPC: B01D69/12 ,  B01D67/00 ,  B01D71/40 ,  B01D71/78 ,  B01D69/10 ,  B01D63/10 ,  B01D63/14 ,  B01D69/02 ,  C07K1/34

Abstract: Described herein is a filtration media comprising: (i) a first filtration medium comprising an anion exchange nonwoven substrate, wherein the anion exchange nonwoven substrate comprises a plurality of quaternary ammonium groups; and (ii) a second filtration medium comprising a functionalized microporous membrane wherein the functionalized microporous membrane comprises a plurality of guanidyl groups; wherein the first filtration medium is positioned upstream of the second filtration medium.