公开(公告)号：US20210394128A1

公开(公告)日：2021-12-23

申请号：US17354921

申请日：2021-06-22

Applicant: ENTEGRIS, INC.

Inventor： KwokShun CHENG ,  Jad A. JASBER ,  Tony YU ,  Maybelle WOO ,  Dongzhu WU ,  James HAMZIK

IPC: B01D71/56 ,  B01D69/12 ,  B01D69/02 ,  B01D71/26 ,  B01D67/00

Abstract: Provided are certain composite membranes useful for removing various impurities from liquids. In certain aspects, the composite membranes comprise a hydrophobic polymer having a polyamide coated thereon, and in other aspects, such composite membranes having certain acrylic polymers coated thereon. The composite membranes are useful in the removal of various impurities in liquids, such as those encountered in industrial and life sciences processes.

公开(公告)号：US20210394169A1

公开(公告)日：2021-12-23

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 ,  C08J5/22 ,  C08F255/02 ,  B01D39/16 ,  B01J47/12

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.

公开(公告)号：US20230390709A1

公开(公告)日：2023-12-07

申请号：US18237327

申请日：2023-08-23

Applicant: ENTEGRIS, INC.

Inventor： Kwok-Shun CHENG ,  Rajni PATEL ,  Maybelle WOO ,  Puth PROEUNG

IPC: B01D71/26 ,  B01D69/02 ,  B01D67/00 ,  C07B63/00

CPC classification number: B01D71/26 ,  B01D69/02 ,  B01D67/002 ,  C07B63/00 ,  B01D63/14

Abstract: Described are liquid-flowable, porous polyethylene filter membranes that include two opposing sides and that have an asymmetric pore structure; filter components and filters that include this type of porous polyethylene filter membrane; methods of making the porous polyethylene filter membranes, filter components, and filters; and methods of using a porous polyethylene filter membrane, filter component, or filter, to filter a fluid such as a liquid chemical to remove unwanted material from the fluid.

公开(公告)号：US20210354092A1

公开(公告)日：2021-11-18

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

IPC: B01D69/12 ,  B01D71/26 ,  B01D69/02 ,  B01D67/00

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.

公开(公告)号：US20190255489A1

公开(公告)日：2019-08-22

申请号：US16312653

申请日：2017-06-26

Applicant: ENTEGRIS, Inc.

Inventor： Maybelle WOO ,  Jeffrey E. TOWNLEY ,  Kwok-Shun CHENG

IPC: B01D69/08 ,  B01D71/56 ,  B01D69/02 ,  B01D67/00

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.