EP4168165A4 - Composite filter media - Google Patents

Composite filter media

Info

Publication number
EP4168165A4
EP4168165A4 EP21829944.4A EP21829944A EP4168165A4 EP 4168165 A4 EP4168165 A4 EP 4168165A4 EP 21829944 A EP21829944 A EP 21829944A EP 4168165 A4 EP4168165 A4 EP 4168165A4
Authority
EP
European Patent Office
Prior art keywords
filter media
composite filter
composite
media
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21829944.4A
Other languages
German (de)
French (fr)
Other versions
EP4168165A1 (en
Inventor
Kwokshun Cheng
Jad A Jaber
Tony Yu
Maybelle Woo
Dongzhu Wu
James Hamzik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entegris Inc
Original Assignee
Entegris Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Entegris Inc filed Critical Entegris Inc
Publication of EP4168165A1 publication Critical patent/EP4168165A1/en
Publication of EP4168165A4 publication Critical patent/EP4168165A4/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0006—Organic membrane manufacture by chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/26—Polyalkenes
    • B01D71/261—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/26—Polyalkenes
    • B01D71/262—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/34—Use of radiation
    • B01D2323/345—UV-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/30—Chemical resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Inorganic Chemistry (AREA)
  • Polyamides (AREA)
EP21829944.4A 2020-06-23 2021-06-22 Composite filter media Pending EP4168165A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063043007P 2020-06-23 2020-06-23
PCT/US2021/038531 WO2021262750A1 (en) 2020-06-23 2021-06-22 Composite filter media

Publications (2)

Publication Number Publication Date
EP4168165A1 EP4168165A1 (en) 2023-04-26
EP4168165A4 true EP4168165A4 (en) 2024-07-17

Family

ID=79281787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21829944.4A Pending EP4168165A4 (en) 2020-06-23 2021-06-22 Composite filter media

Country Status (4)

Country Link
EP (1) EP4168165A4 (en)
JP (2) JP7556061B2 (en)
KR (1) KR20230029818A (en)
WO (1) WO2021262750A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115385433B (en) * 2022-08-23 2023-06-27 武汉钢铁有限公司 Composite silicon removing agent for steel industrial wastewater and preparation and use methods thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340479A (en) * 1978-05-15 1982-07-20 Pall Corporation Process for preparing hydrophilic polyamide membrane filter media and product
US6280791B1 (en) * 1997-04-11 2001-08-28 Cuno, Inc. Process of making a three-region reinforced microporous filtration membrane

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE489161T1 (en) 2004-09-30 2010-12-15 Univ Mcmaster COMPOSITE MATERIAL WITH SUPPLIED HYDROPHILIC COATINGS
US7665615B2 (en) * 2005-09-30 2010-02-23 General Electric Company Composite article having hydrophilic properties and method of manufacture
JP5069431B2 (en) 2006-06-30 2012-11-07 帝人ファイバー株式会社 Composite fiber and multi-slit fiber
US10195542B2 (en) * 2014-05-15 2019-02-05 Hollingsworth & Vose Company Surface modified filter media
KR102225919B1 (en) 2016-06-27 2021-03-11 엔테그리스, 아이엔씨. Highly retainable polyamide hollow fiber membrane manufactured through controlled shrinkage
KR101969480B1 (en) * 2017-03-02 2019-04-16 (주)다솜뜰 Air cleaning filter for effectively removing fine dust and method for preparing the same
KR20230042397A (en) * 2018-04-30 2023-03-28 엔테그리스, 아이엔씨. Polyamide coated filter membrane, filters, and methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340479A (en) * 1978-05-15 1982-07-20 Pall Corporation Process for preparing hydrophilic polyamide membrane filter media and product
US4340479B1 (en) * 1978-05-15 1996-08-27 Pall Corp Process for preparing hydrophilic polyamide membrane filter media and product
US6280791B1 (en) * 1997-04-11 2001-08-28 Cuno, Inc. Process of making a three-region reinforced microporous filtration membrane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021262750A1 *

Also Published As

Publication number Publication date
JP7556061B2 (en) 2024-09-25
WO2021262750A1 (en) 2021-12-30
JP2023531961A (en) 2023-07-26
EP4168165A1 (en) 2023-04-26
JP2024138302A (en) 2024-10-08
KR20230029818A (en) 2023-03-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20230118

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DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20240614

RIC1 Information provided on ipc code assigned before grant

Ipc: B01D 69/02 20060101ALI20240610BHEP

Ipc: B01D 61/14 20060101ALI20240610BHEP

Ipc: C02F 1/44 20230101ALI20240610BHEP

Ipc: B01D 67/00 20060101ALI20240610BHEP

Ipc: B01D 69/12 20060101ALI20240610BHEP

Ipc: B01D 71/56 20060101AFI20240610BHEP