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

IPC: B01D69/08 ,  B01D69/02 ,  B01D63/02 ,  B01D61/14 ,  B01D67/00 ,  B01D71/56

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.

公开(公告)号：US20230100527A1

公开(公告)日：2023-03-30

申请号：US17954236

申请日：2022-09-27

Applicant: ENTEGRIS, INC.

Inventor： Dongzhu Wu ,  Mei Feng He ,  Xi Bin Sun ,  Kwok-Shun Cheng

IPC: A61M5/165 ,  C08L27/18 ,  D04H1/4318

Abstract: The disclosure provides improved vent filters useful in single-use in-line transfusion systems. In a first aspect, the disclosure provides filter comprising (i) a layer comprising a fluoropolymer membrane and (ii) a layer comprising at least two air-permeable thermoplastic polymeric layers, the air-permeable thermoplastic polymeric layers comprised of a first polymeric layer and a second polymeric layer, wherein the first polymeric layer is in bonded contact with the fluoropolymer membrane, possesses a melting point of about 95° C. to about 180° C., and wherein the second polymeric layer is in bonded contact with the first polymeric layer and has a melting point of about 220° C. to about 265° C. These filters exhibit excellent bonding strength between the various layers while preserving a considerable amount of the original fluoropolymer membrane air flux.

公开(公告)号：US11413586B2

公开(公告)日：2022-08-16

申请号：US16381442

申请日：2019-04-11

Applicant: ENTEGRIS, INC.

Inventor： Jad Ali Jaber ,  Kwok-Shun Cheng ,  Saksatha Ly

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

Abstract: Described are filter membranes coated with a polyamide, filters and filter cartridges that include the filter membranes, and methods of using and making the filter membranes.