KR102751586B1 - 다공질막, 복합막 및 다공질막의 제조 방법 - Google Patents

다공질막, 복합막 및 다공질막의 제조 방법 Download PDF

Info

Publication number
KR102751586B1
KR102751586B1 KR1020217019407A KR20217019407A KR102751586B1 KR 102751586 B1 KR102751586 B1 KR 102751586B1 KR 1020217019407 A KR1020217019407 A KR 1020217019407A KR 20217019407 A KR20217019407 A KR 20217019407A KR 102751586 B1 KR102751586 B1 KR 102751586B1
Authority
KR
South Korea
Prior art keywords
polyvinylidene fluoride
porous membrane
fluoride resin
polymer
branched
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.)
Active
Application number
KR1020217019407A
Other languages
English (en)
Korean (ko)
Other versions
KR20210104737A (ko
Inventor
슌 시무라
šœ 시무라
마사유키 하나카와
겐타 이와이
다카아키 야스다
Original Assignee
도레이 카부시키가이샤
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 도레이 카부시키가이샤 filed Critical 도레이 카부시키가이샤
Publication of KR20210104737A publication Critical patent/KR20210104737A/ko
Application granted granted Critical
Publication of KR102751586B1 publication Critical patent/KR102751586B1/ko
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B01D67/0011—Casting solutions therefor
    • 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
    • B01D67/0016—Coagulation
    • 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
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B01D69/1071—Woven, non-woven or net mesh
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/108—Inorganic support material
    • 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
    • B01D69/1213—Laminated layers
    • 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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate
    • 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
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/16—Homopolymers or copolymers or vinylidene fluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/218—Additive materials
    • B01D2323/2182—Organic additives
    • B01D2323/21839—Polymeric additives
    • B01D2323/2187—Polyvinylpyrolidone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/0283—Pore size
    • B01D2325/02832—1-10 nm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/0283—Pore size
    • B01D2325/02833—Pore size more than 10 and up to 100 nm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/20—Specific permeability or cut-off range
    • 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
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/34—Molecular weight or degree of polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/52—Crystallinity
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2427/16—Homopolymers or copolymers of vinylidene fluoride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
KR1020217019407A 2018-12-26 2019-12-24 다공질막, 복합막 및 다공질막의 제조 방법 Active KR102751586B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2018-242771 2018-12-26
JP2018242771 2018-12-26
PCT/JP2019/050576 WO2020138065A1 (ja) 2018-12-26 2019-12-24 多孔質膜、複合膜及び多孔質膜の製造方法

Publications (2)

Publication Number Publication Date
KR20210104737A KR20210104737A (ko) 2021-08-25
KR102751586B1 true KR102751586B1 (ko) 2025-01-10

Family

ID=71127198

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020217019407A Active KR102751586B1 (ko) 2018-12-26 2019-12-24 다공질막, 복합막 및 다공질막의 제조 방법

Country Status (7)

Country Link
US (1) US12097470B2 (https=)
EP (1) EP3903914A4 (https=)
JP (1) JP7435438B2 (https=)
KR (1) KR102751586B1 (https=)
CN (1) CN113195083B (https=)
AU (1) AU2019415278B2 (https=)
WO (1) WO2020138065A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230174230A (ko) * 2021-04-28 2023-12-27 도레이 카부시키가이샤 중공사막 및 그 제조 방법

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10316793A (ja) 1997-05-19 1998-12-02 Asahi Chem Ind Co Ltd フッ化ビニリデン系樹脂製多孔質膜
ATE433795T1 (de) 2001-10-04 2009-07-15 Toray Industries Verfahren zur herstellung einer hohlfasermembran
JP5109263B2 (ja) 2005-02-28 2012-12-26 東レ株式会社 フッ素樹脂系高分子分離膜およびその製造方法
CA2611116A1 (en) 2005-06-20 2006-12-28 Siemens Water Technologies Corp. Cross linking treatment of polymer membranes
JP5436854B2 (ja) 2006-04-19 2014-03-05 旭化成ケミカルズ株式会社 高耐久性ｐｖｄｆ多孔質膜及びその製造方法、並びに、これを用いた洗浄方法及び濾過方法
CN101500695B (zh) 2006-07-25 2012-09-26 东丽株式会社 氟树脂聚合物分离膜及其制备方法
EP2108107B1 (en) 2006-11-21 2020-04-08 Arkema Inc. Caustic resistant membrane
JP5223435B2 (ja) * 2008-04-16 2013-06-26 ダイキン工業株式会社 含フッ素ブロック共重合体
US9174174B2 (en) * 2008-09-19 2015-11-03 Toray Industries, Inc. Separation membrane and method for producing the same
JP5519684B2 (ja) * 2008-10-28 2014-06-11 アーケマ・インコーポレイテッド 水分流動性ポリマー膜
KR101068437B1 (ko) 2008-12-30 2011-09-28 웅진케미칼 주식회사 투수도 및 내약품성이 우수한 다공성 ｐｖｄｆ 막 및 그 제조방법
WO2013108816A1 (ja) 2012-01-17 2013-07-25 電気化学工業株式会社 多層シート、太陽電池用バックシート及び太陽電池モジュール
JP5871234B2 (ja) * 2012-03-23 2016-03-01 国立研究開発法人物質・材料研究機構 合成コラーゲンナノファイバーの製造方法
JP2013198559A (ja) * 2012-03-23 2013-10-03 National Institute For Materials Science 合成コラーゲンナノファイバーを含む止血材
JP5856887B2 (ja) 2012-03-27 2016-02-10 旭化成ケミカルズ株式会社 多孔質膜の製造方法
WO2014137721A1 (en) 2013-03-04 2014-09-12 Arkema Inc. Long chain branched fluoropolymer membranes
EP2974786B1 (en) 2013-03-15 2017-05-10 Mitsubishi Rayon Co., Ltd. Resin composition, membrane-forming stock solution, porous membrane, and hollow fiber membrane, water treatment device, electrolyte support, and separator using porous membrane
JP2014222601A (ja) * 2013-05-13 2014-11-27 三菱レイヨン株式会社 非水二次電池負極用バインダー樹脂、非水二次電池負極用スラリー組成物、非水二次電池用負極、および非水二次電池
JP6447623B2 (ja) 2014-03-03 2019-01-09 Jnc株式会社 複合微多孔質膜及びこれを用いたフィルター
US20180030293A1 (en) 2015-02-20 2018-02-01 Dic Corporation Ink composition for organic light-emitting device and organic light-emitting device
KR20180042156A (ko) 2015-08-18 2018-04-25 닛폰고세이가가쿠고교 가부시키가이샤 편광막 제조용 폴리비닐 알코올계 수지 입자 및 이의 제조 방법, 폴리비닐 알코올계 필름 및 이의 제조 방법, 편광막, 폴리비닐 알코올계 수지 입자
MY184243A (en) * 2015-10-02 2021-03-29 Sdp Global Co Ltd Absorbent resin composition and method for producing same
JP6938859B2 (ja) * 2015-12-03 2021-09-22 三菱ケミカル株式会社 ポリビニルアルコール系フィルムの製造方法及び偏光膜の製造方法
WO2017163603A1 (ja) * 2016-03-23 2017-09-28 国立大学法人北海道大学 椎間板治療用組成物

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Matthias Mertens et al(Crosslinked PVDF-membranes for solvent resistant nanofiltration, Journal of Membrane Science 566 (2018) 223-230)(2018.08.28.)

Also Published As

Publication number Publication date
WO2020138065A1 (ja) 2020-07-02
CN113195083A (zh) 2021-07-30
CN113195083B (zh) 2022-12-27
AU2019415278A1 (en) 2021-07-15
US12097470B2 (en) 2024-09-24
AU2019415278B2 (en) 2025-03-13
KR20210104737A (ko) 2021-08-25
JP7435438B2 (ja) 2024-02-21
US20220056235A1 (en) 2022-02-24
EP3903914A4 (en) 2022-11-23
EP3903914A1 (en) 2021-11-03
JPWO2020138065A1 (ja) 2021-11-04

Similar Documents

Publication Publication Date Title
JP5732719B2 (ja) 分離膜およびその製造方法
KR101699296B1 (ko) 폴리비닐리덴 플루오라이드로 제조된 소수성 오존 안정성 막
TW201414537A (zh) 微多孔膜及其製造方法
JP5648633B2 (ja) 多孔質膜の製造方法
CN105120992A (zh) 聚偏二氟乙烯中空纤维膜及其制备
JP2010094670A (ja) ポリフッ化ビニリデン系複合膜およびその製造方法
JPWO2017217446A1 (ja) 多孔質膜、及び多孔質膜の製造方法
JPS58114702A (ja) ポリスルホン中空繊維膜
WO2019066061A1 (ja) 多孔質中空糸膜及びその製造方法
KR101285718B1 (ko) 나노기공성 필름의 제조방법, 그로부터 제조되는 나노기공성 필름 및 그를 이용한 수처리용 나노여과막
JP7409072B2 (ja) 多孔質膜、複合膜及び多孔質膜の製造方法
CA2572492A1 (en) Porous membrane for water treatment and method of manufacturing the same
KR102751586B1 (ko) 다공질막, 복합막 및 다공질막의 제조 방법
JP2011036848A (ja) ポリフッ化ビニリデン系樹脂製分離膜およびその製造方法
WO2020262490A1 (ja) 多孔質膜および複合多孔質膜
WO2022249839A1 (ja) 分離膜及びその製造方法
CN115551623A (zh) 多孔质膜和复合膜
JP7115309B2 (ja) 分離膜及び分離膜の製造方法
US11794150B2 (en) Separation membrane and method for producing separation membrane
WO2023054228A1 (ja) 多孔質膜及び多孔質膜の製造方法
JP7827213B2 (ja) 分離膜及びその製造方法
KR20070102011A (ko) 고수투과성 폴리불화비닐리덴계 다공성 중공사막 및 이의제조방법
JP2021186746A (ja) 多孔質膜及び複合膜
JPS63190012A (ja) ポリアクリロニトリル系中空糸膜及びその製法
JP2018012058A (ja) 多孔質膜

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20210623

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20220627

Comment text: Request for Examination of Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20240415

Patent event code: PE09021S01D

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20241203

PG1601 Publication of registration