公开(公告)号：US10919001B2

公开(公告)日：2021-02-16

申请号：US16679855

申请日：2019-11-11

Applicant: ENTEGRIS, INC.

Inventor： Sina Bonyadi

IPC: B01D71/64 ,  B01D61/14 ,  B01D69/02 ,  B01D67/00

Abstract: Microporous polyamide-imide membranes and methods for making them are disclosed. The microporous membrane includes polyamide-imide polymer, wherein the membrane has an HFE bubble point, and an IPA flow-time. The microporous membrane has an HFE bubble point from about 25 psi to about 200 psi and has an IPA flow-time from about 400 second to about 40,000 seconds. Another microporous polyamide-imide membrane includes a polyamide-imide polymer, wherein the membrane has a HFE bubble point from about 25 psi to about 200 psi. The membrane is asymmetric- and has a tight layer with a thickness of ≤10 microns. Filter and purification devices incorporating such devices are also disclosed.

公开(公告)号：US11998878B2

公开(公告)日：2024-06-04

申请号：US16817351

申请日：2020-03-12

Applicant: ENTEGRIS, INC.

Inventor： Sina Bonyadi

IPC: B01D69/10 ,  B01D67/00 ,  B01D69/08 ,  B01D69/12 ,  B01D71/26 ,  B01D71/64

CPC classification number: B01D69/107 ,  B01D67/0016 ,  B01D69/08 ,  B01D69/12 ,  B01D71/261 ,  B01D71/641

Abstract: Described are composite hollow fibers filter membranes that include a porous polymeric hollow fiber support and a filter layer; methods of making the composite hollow fibers and using the composite hollow fibers as a filter membrane; methods of making a filter component or filter from the composite hollow fiber; and filter components and filters that contain the composite hollow fibers as filter membranes.

公开(公告)号：US20160256836A1

公开(公告)日：2016-09-08

申请号：US15032833

申请日：2014-11-14

Applicant: ENTEGRIS, INC.

Inventor： Sina Bonyadi

IPC: B01D71/64 ,  B01D69/02 ,  B01D61/14

CPC classification number: B01D71/64 ,  B01D61/147 ,  B01D67/0011 ,  B01D67/0016 ,  B01D69/02 ,  B01D2323/22 ,  B01D2325/021 ,  B01D2325/022 ,  B01D2325/04

Abstract: Microporous polyamide-imide membranes and methods for making them are disclosed. The microporous membrane includes polyamide-imide polymer, wherein the membrane has an HFE bubble point, and an IPA flow-time. The microporous membrane has an HFE bubble point from about 25 psi to about 200 psi and has an IPA flow-time from about 400 second to about 40,000 seconds. Another microporous polyamide-imide membrane includes a polyamide-imide polymer, wherein the membrane has a HFE bubble point from about 25 psi to about 200 psi. The membrane is asymmetric—and has a tight layer with a thickness of

Abstract translation: 公开了微孔聚酰胺酰亚胺膜及其制备方法。 微孔膜包括聚酰胺 - 酰亚胺聚合物，其中膜具有HFE起泡点和IPA流动时间。 微孔膜具有约25psi至约200psi的HFE起泡点，并且具有约400秒至约40,000秒的IPA流动时间。 另一种微孔聚酰胺酰亚胺膜包括聚酰胺 - 酰亚胺聚合物，其中该膜具有约25psi至约200psi的HFE起泡点。 膜是不对称的，并且具有厚度<10微米的紧密层。 还公开了并入这种装置的过滤和净化装置。

公开(公告)号：US20240390855A1

公开(公告)日：2024-11-28

申请号：US18693083

申请日：2022-09-15

Applicant: CELGARD, LLC ,  ENTEGRIS, INC.

Inventor： Eric R. White ,  Sina Bonyadi ,  Vinay Kalyani

IPC: B01D61/14 ,  B01D61/02 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26

Abstract: A dry-process microporous membrane for filtration, wherein at least one layer of the membrane has an average pore size less than 0.035 microns, preferably between about 0.010 microns to about 0.020 microns, and a thickness less than 14 microns. The membrane may be used in an ultra-filtration or nano-filtration process. The membrane exhibits high dimensional stability.

公开(公告)号：US11883786B2

公开(公告)日：2024-01-30

申请号：US17066209

申请日：2020-10-08

Applicant: ENTEGRIS, INC.

Inventor： Sina Bonyadi

IPC: B01D71/68 ,  B01D71/64 ,  B01D67/00

CPC classification number: B01D71/68 ,  B01D67/0016 ,  B01D71/64 ,  B01D2221/14 ,  B01D2325/023 ,  B01D2325/04

Abstract: Described are porous polymeric membranes that include two opposing sides and that have a variable pore structure through a thickness of the membrane; filter components and filters that include this type of porous polymeric membrane; methods of making the membranes, filter components, and filters; and methods of using the polymeric filter membrane, filter component, or filter.

公开(公告)号：US10532329B2

公开(公告)日：2020-01-14

申请号：US15032833

申请日：2014-11-14

Applicant: Entegris, Inc.

Inventor： Sina Bonyadi

IPC: B01D71/64 ,  B01D69/02 ,  B01D61/14

Abstract: Microporous polyamide-imide membranes and methods for making them are disclosed. The microporous membrane includes polyamide-imide polymer, wherein the membrane has an HFE bubble point, and an IPA flow-time. The microporous membrane has an HFE bubble point from about 25 psi to about 200 psi and has an IPA flow-time from about 400 second to about 40,000 seconds. Another microporous polyamide-imide membrane includes a polyamide-imide polymer, wherein the membrane has a HFE bubble point from about 25 psi to about 200 psi. The membrane is asymmetric—and has a tight layer with a thickness of

公开(公告)号：US20240226814A1

公开(公告)日：2024-07-11

申请号：US18615108

申请日：2024-03-25

Applicant: Celgard, LLC ,  Entegris, Inc.

Inventor： Eric R. White ,  Sina Bonyadi ,  Vinay Kalyani

IPC: B01D69/02 ,  B01D61/02 ,  B01D61/14 ,  B01D69/12 ,  B01D71/26

CPC classification number: B01D69/02 ,  B01D61/027 ,  B01D61/145 ,  B01D69/1216 ,  B01D71/261 ,  B01D71/262 ,  B01D2325/02832 ,  B01D2325/02833 ,  B01D2325/04 ,  B01D2325/36

Abstract: A dry-process microporous membrane for filtration, wherein at least one layer of the membrane has an average pore size less than 0.035 microns, preferably between about 0.010 microns to about 0.020 microns, and a thickness less than 14 microns. The membrane may be used in an ultra-filtration or nano-filtration process. The membrane exhibits high dimensional stability.

公开(公告)号：US20220401893A1

公开(公告)日：2022-12-22

申请号：US17840394

申请日：2022-06-14

Applicant: ENTEGRIS, INC.

Inventor： Zhifeng Li ,  Sina Bonyadi ,  Pushkara Rao Varanasi

IPC: B01D71/58 ,  B01D69/02 ,  B01D69/12 ,  B01D67/00 ,  B01D61/02

Abstract: In summary, the disclosure provides certain membranes useful as filter materials in the removal of metal ions, metal particulates, and/or organic contaminants from liquid compositions, in particular liquid compositions used in the microelectronic device industry. The membranes of the disclosure are porous membranes comprised of poly(quinoline) polymers. Advantageously, the poly(quinoline) membranes are thermally stable and hydrolytically stable and can thus be cleaned between uses using acidic material such as dilute hydrochloric acid, without suffering from significant degradation. The poly(quinoline) polymers can be designed to be soluble in certain solvents, thus enabling the manufacture of the corresponding porous membranes by immersion-casting techniques.

公开(公告)号：US20220362720A1

公开(公告)日：2022-11-17

申请号：US17738518

申请日：2022-05-06

Applicant: ENTEGRIS, INC.

Inventor： Sina Bonyadi ,  Pushkara Rao Varanasi ,  Zhifeng Li ,  Carrie Lynn Frazee

IPC: B01D71/44 ,  B01D69/02 ,  B01D67/00

Abstract: The disclosure provides certain porous membranes comprised of cyclic polyolefin polymers, such as poly(norbornene)s. In one embodiment, a poly(norbornene) polymer is dissolved in tetrahydrofuran, cast into a film and subjected to solvent induced phase separation to provide a porous filter membrane (i.e., film).