公开(公告)号：US11504674B2

公开(公告)日：2022-11-22

申请号：US16644665

申请日：2018-10-12

Applicant: Asahi Kasei Kabushiki Kaisha

Inventor： Manabu Sekiguchi ,  Akihisa Yamashita

IPC: H01M50/00 ,  B01D69/12 ,  H01M50/449 ,  B01D71/26 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/02

Abstract: A polyolefin microporous film having a laminated structure provided with at least one layer A containing a polyolefin and at least one layer B containing a polyolefin. 0 mass % to less than 3 mass % of polypropylene is contained in layer A and 1 mass % to less than 30 mass % of polypropylene is contained in layer B. When the proportion of polypropylene contained in layer A is represented by PPA (mass %) and the proportion of polypropylene contained in layer B is represented by PPB (mass %), PPB>PPA. In the polyolefin microporous film, the heat shrinkage ratio in TD at 120° C. measured upon applying, in MD, a constant load determined on the basis of the relationship: load (gf)=0.01×piercing strength (gf) of polyolefin microporous film×length (mm) in TD of polyolefin microporous film, is 10 to 40% inclusive.

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.

公开(公告)号：US11339257B2

公开(公告)日：2022-05-24

申请号：US16606222

申请日：2018-04-19

Applicant: DANKOOK UNIVERSITY CHEONAN CAMPUS INDUSTRY ACADEMIC COOPERATION FOUNDATION

Inventor： Chang Hyun Lee ,  Jin Pyo Hwang

IPC: C08J5/22 ,  B01J41/13 ,  B01J41/14 ,  B01D61/44 ,  B01D69/10 ,  B01D69/12 ,  B01D71/26 ,  B01D71/36 ,  B01D71/48 ,  B01D71/56 ,  B01D71/64 ,  B01D71/66 ,  B01J39/20

Abstract: The present inventive concept relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as ammonium group, phosphonium group, imidazolium group, pyridinium group and sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.

公开(公告)号：US11338252B2

公开(公告)日：2022-05-24

申请号：US14889196

申请日：2014-05-02

Applicant: TEIJIN LIMITED

Inventor： Takao Ohno ,  Kouji Furuya

IPC: B01D71/26 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10

Abstract: A substrate for a liquid filter, which includes a polyolefin microporous membrane, the polyolefin microporous membrane having a water permeation efficiency of 1.21 to 2.90 ml/min·cm2, the polyolefin microporous membrane having a bubble point of 0.40 MPa to 0.65 MPa, the polyolefin microporous membrane having a compressibility of less than 15%.

公开(公告)号：US20220134287A1

公开(公告)日：2022-05-05

申请号：US17522159

申请日：2021-11-09

Applicant: ENTEGRIS, Inc.

Inventor： Jad Ali JABER ,  Saksatha LY ,  James HAMZIK ,  Testu KOHYAMA

IPC: B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  B01D71/78 ,  B01D71/82 ,  B01J20/26 ,  B01J20/28 ,  B01J20/32 ,  C07C45/78 ,  C08J5/22 ,  G03F7/027

Abstract: The present disclosure provides a porous polymeric membrane that is coated with a cross-linked polymerized monomer. The coating on the porous polymeric membrane has a charge when it is immersed in an organic liquid. The coated porous polymeric membrane, a filter utilizing the membrane, and a method for treating an organic liquid used for photoresist with the coated porous polymeric membrane to remove metal contaminants from the organic liquid are disclosed.

公开(公告)号：US11318421B2

公开(公告)日：2022-05-03

申请号：US16872098

申请日：2020-05-11

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Taoli Gu ,  David McAndrews ,  Abhishek Bandlore

IPC: B01D63/06 ,  B01D69/12 ,  B01D67/00 ,  B01D71/80 ,  B01D69/10 ,  C08G69/40 ,  B01D71/36 ,  B01D71/26 ,  B01D61/36

Abstract: Composite membrane tubing includes a porous scaffold support combined with polyether block amide copolymer. The composite membrane tubing has overlapping “fusion areas” that are an artifact of the manufacturing process. The methods of manufacturing above-mentioned composite membrane tubing have also been addressed. The composite membrane tubing can be reinforced with a structural mesh to further provide rigidity and strength. Composite membrane tubing or generally extruded tubing can be integrated into a multi-tube module for various applications.

公开(公告)号：US20220105476A1

公开(公告)日：2022-04-07

申请号：US17488897

申请日：2021-09-29

Applicant: Entegris, Inc.

Inventor： James HAMZIK ,  Justin BREWSTER ,  Siddarth SAMPATH ,  Jad Ali JABER ,  Aabid A. MIR

IPC: B01D71/26

Abstract: The disclosure is directed to removal of metal contaminants from fluids, as well as ligand-modified filter materials useful for carrying out such methods. The filters and methods of this disclosure are particularly effective for removal of metals from liquid compositions comprising amines. Such liquid compositions with significantly reduced amounts of metals can be used in a microelectronic manufacturing process, such as liquids for removing photoresist or liquids used in etching. The ligand-modified filters, such as ligand-modified porous membranes, can be configured for use in a microelectronic manufacturing system, which can be utilized in the system as a point of use metal-removal feature for liquids entering the system.

公开(公告)号：US20220054985A1

公开(公告)日：2022-02-24

申请号：US17129528

申请日：2020-12-21

Applicant: University of Washington

Inventor： Lilo D. Pozzo ,  Anthony William Moretti ,  Gregory M. Newbloom ,  Aaron West ,  Eden Rivers

IPC: B01D67/00 ,  B01D39/20 ,  B01D71/02 ,  H01M8/1053 ,  H01M8/1062 ,  B01D69/02 ,  B01D69/14 ,  H01M8/106 ,  H01M8/1016 ,  H01M8/18 ,  B01D69/10 ,  B01D69/12 ,  H01M8/0236 ,  H01M8/0239 ,  H01M8/0245 ,  B01D71/26 ,  B01D71/28 ,  B01D71/76

Abstract: Disclosed herein are ceramic selective membranes and methods of forming the ceramic selective membranes by forming a selective silica ceramic on a porous membrane substrate.

公开(公告)号：US11198099B2

公开(公告)日：2021-12-14

申请号：US16346088

申请日：2017-10-30

Applicant: Sartorius Stedim Biotech GmbH

Inventor： Thomas Loewe ,  Thomas Friese ,  Sebastian Handt ,  Mario Strauss ,  Paschalis Nikoloudis

IPC: B01D53/22 ,  B01D69/12 ,  A61L9/16 ,  B01D46/54 ,  B01D65/00 ,  B01D65/02 ,  B01D69/02 ,  B01D71/26 ,  B01D71/48

Abstract: The present invention relates to a porous sheet product, to a filter element comprising the porous sheet product, to a method for producing the porous sheet product, to a method for producing the filter element, and to the use of the sheet product and of the filter element.

公开(公告)号：US20210376425A1

公开(公告)日：2021-12-02

申请号：US17365736

申请日：2021-07-01

Applicant: Celgard, LLC

Inventor： Kang Karen Xiao ,  Eric Joseph Penegar ,  Takahiko Kondo ,  Robert Nark ,  Eric Robert White ,  Xiaomin Zhang ,  Kristoffer K. Stokes

IPC: H01M50/449 ,  H01M10/0525 ,  B01D71/26 ,  B01D69/12 ,  H01M50/411

Abstract: In accordance with at least selected embodiments, a battery separator or separator membrane comprises one or more co-extruded multi-microlayer membranes optionally laminated or adhered to another polymer membrane. The separators described herein may provide improved strength, for example, improved puncture strength, particularly at a certain thickness, and may exhibit improved shutdown and/or a reduced propensity to split.