公开(公告)号：US20230100885A1

公开(公告)日：2023-03-30

申请号：US17969152

申请日：2022-10-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Steven P. Swanson ,  Jerald K. Rasumssen ,  George W. Griesgraber ,  Andrew W. Vail ,  Andrew S. Waller

IPC: C11D17/04 ,  A01N47/44 ,  A47L13/17 ,  B08B1/00

Abstract: A wipe article includes a substrate, a cationic coating disposed on a surface of the substrate, distributed throughout the substrate, or both. The cationic coating contains a guanidinyl-containing polymer that is crosslinked and bound to the substrate. The substrate includes sponge, nonwoven fabric, or woven fabric. The wipes are useful for removing microorganisms from a microorganism-contaminated surface and also for reducing re-contamination of the cleaned surface or transfer to another surface of the removed microorganisms.

公开(公告)号：US11505769B2

公开(公告)日：2022-11-22

申请号：US17075787

申请日：2020-10-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Steven P. Swanson ,  Jerald K. Rasmussen ,  George W. Griesgraber ,  Andrew W. Vail ,  Andrew S. Waller

IPC: C11D17/06 ,  C11D17/04 ,  A01N47/44 ,  A47L13/17 ,  B08B1/00

Abstract: A wipe article includes a substrate, a cationic coating disposed on a surface of the substrate, distributed throughout the substrate, or both. The cationic coating contains a guanidinyl-containing polymer that is crosslinked and bound to the substrate. The substrate includes sponge, nonwoven fabric, or woven fabric. The wipes are useful for removing microorganisms from a microorganism-contaminated surface and also for reducing re-contamination of the cleaned surface or transfer to another surface of the removed microorganisms.

公开(公告)号：US10562997B2

公开(公告)日：2020-02-18

申请号：US15549268

申请日：2016-03-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew W. Vail ,  Jerald K. Rasmussen ,  John J. Schmidt ,  Ali E. Ozcam ,  Jonathan F. Hester ,  Gregory M. Jellum

IPC: C12N15/10 ,  C12Q1/6806 ,  C08F255/02 ,  G01N1/40

Abstract: A method of purifying a biological composition includes: disposing loose cationic ligand-functionalized staple fibers and a biological composition within a mixing volume of a vessel; agitating the biological composition and the loose cationic ligand-functionalized staple fibers while they are in intimate contact with each other within the mixing volume to provide modified fibers and a purified biological composition; and separating at least a portion of the purified biological composition from the modified fibers and any loose cationic ligand-functionalized staple fibers with which it is in contact. The loose cationic ligand-functionalized staple fibers have a modified surface layer comprising a grafted acrylic polymer comprising 10 to 100 percent by weight of a cationically-ionizable monomer unit. An article for purifying a biological composition includes: a vessel having a mixing volume disposed therein; and the loose cationic ligand-functionalized staple fibers disposed within the mixing volume.

公开(公告)号：US20190194250A1

公开(公告)日：2019-06-27

申请号：US16330304

申请日：2017-08-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Semra Colak Atan ,  Andrew W. Vail ,  Jerald K. Rasmussen ,  George W. Griesgraber ,  Catherine A. Bothof

IPC: C07K1/34 ,  C07K16/00 ,  B01D71/40

CPC classification number: C07K1/34 ,  B01D71/40 ,  C07K1/18 ,  C07K16/00

Abstract: A process for separating aggregated proteins from monomeric proteins in a biological solution, the process including: providing at least one filter element having a contacting surface, wherein the filter element comprises filter media comprising: a porous substrate; and disposed on the porous substrate, a polymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein each of a first plurality of pendant groups comprises: (1) at least one acidic group or salt thereof; and (2) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and allowing an initial biological solution to contact the contacting surface of the filter element N under conditions effective to separate the aggregated proteins from the monomeric proteins such that a final biological solution includes purified monomeric proteins.