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公开(公告)号：US12179188B2
公开(公告)日：2024-12-31
申请号：US18423071
申请日：2024-01-25
Applicant: ENTEGRIS, INC.
Inventor： Maybelle Woo , Jad A. Jaber , Saksatha Ly , Jeffrey E. Townley , James Hamzik , Justin Brewster
IPC: B01J47/014 , B01D39/16 , B01D67/00 , B01D71/26 , B01J47/12 , C08F255/02 , C08J5/22
Abstract: Described are ion-exchange membranes that include a porous polymeric membrane and imidazole ion-exchange groups at surfaces of the membrane; ion-exchange membranes and filters that contain the ion-exchange membranes; and methods of using the ion-exchange membranes and filters for separating charged biological molecule from a liquid.
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Patent Agency Ranking
公开(公告)号：US20230120229A1
公开(公告)日：2023-04-20
申请号：US17966604
申请日：2022-10-14
Applicant: ENTEGRIS, INC.
Inventor： Maybelle Woo , Jeffrey E. Townley
Abstract: Described are multi-layer filters of a type commonly known as “depth filters” and related devices and methods, with the filters containing a layer that includes polyaramid fiber, synthetic filter aid, and polymeric binder.
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公开(公告)号：US11918990B2
公开(公告)日：2024-03-05
申请号：US17350970
申请日：2021-06-17
Applicant: ENTEGRIS, INC.
Inventor： Maybelle Woo , Jad A. Jaber , Saksatha Ly , Jeffrey E. Townley , James Hamzik , Justin Brewster
IPC: B01J47/014 , B01D39/16 , B01J47/12 , C08F255/02 , C08J5/22
CPC classification number: B01J47/014 , B01D39/1692 , B01J47/12 , C08F255/02 , C08J5/2243 , B01D2201/184
Abstract: Described are ion-exchange membranes that include a porous polymeric membrane and imidazole ion-exchange groups at surfaces of the membrane; ion-exchange membranes and filters that contain the ion-exchange membranes; and methods of using the ion-exchange membranes and filters for separating charged biological molecule from a liquid.
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公开(公告)号：US11701623B2
公开(公告)日：2023-07-18
申请号：US17320973
申请日：2021-05-14
Applicant: ENTEGRIS, INC.
Inventor： Dongzhu Wu , Kwok Shun Cheng , Rajnikant B. Patel , Tony Yu , Puth Proeung , Maybelle Woo
CPC classification number: B01D69/122 , B01D67/0002 , B01D69/02 , B01D71/26 , B01D2323/08 , B01D2325/04
Abstract: The present disclosure relates to a composite membrane formed by lamination of two or more separate porous polymeric layers, as well as to a method and system for lamination. Advantageously, the resulting composite is a single layer, being difficult to separate into its component layers, yet effectively maintains the filtering capabilities of the component layers when not laminated.
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公开(公告)号：US20240307864A1
公开(公告)日：2024-09-19
申请号：US18423071
申请日：2024-01-25
Applicant: ENTEGRIS, INC.
Inventor： Maybelle Woo , Jad A. Jaber , Saksatha Ly , Jeffrey E. Townley , James Hamzik , Justin Brewster
IPC: B01J47/014 , B01D39/16 , B01D67/00 , B01D71/26 , B01J47/12 , C08F255/02 , C08J5/22
CPC classification number: B01J47/014 , B01D39/1692 , B01D67/00931 , B01D71/261 , B01D71/262 , B01J47/12 , C08F255/02 , C08J5/2243 , B01D2201/184
Abstract: Described are ion-exchange membranes that include a porous polymeric membrane and imidazole ion-exchange groups at surfaces of the membrane; ion-exchange membranes and filters that contain the ion-exchange membranes; and methods of using the ion-exchange membranes and filters for separating charged biological molecule from a liquid.
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公开(公告)号：US11890582B2
公开(公告)日：2024-02-06
申请号：US16312653
申请日：2017-06-26
Applicant: ENTEGRIS, Inc.
Inventor： Maybelle Woo , Jeffrey E. Townley , Kwok-Shun Cheng
CPC classification number: B01D69/08 , B01D61/14 , B01D63/02 , B01D67/0016 , B01D69/02 , B01D69/081 , B01D69/087 , B01D71/56 , B01D2325/20
Abstract: Described herein is a polyamide hollow fiber membrane and methods of making and using the hollow fiber membrane. The polyamide hollow fiber membrane has an isopropanol permeability of from about 5 L/m2 h bar to about 150 L/m2 h bar and a particle rejection percentage of about 100% for particles having a nominal diameter of from about 1 nm to about 25 nm. The polyamide hollow fiber membranes described herein are particularly useful for photoresist filtration, for example.
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