CA2701832C - Microporous membranes having a relatively large average pore size and methods of making the same - Google Patents
Microporous membranes having a relatively large average pore size and methods of making the same Download PDFInfo
- Publication number
- CA2701832C CA2701832C CA2701832A CA2701832A CA2701832C CA 2701832 C CA2701832 C CA 2701832C CA 2701832 A CA2701832 A CA 2701832A CA 2701832 A CA2701832 A CA 2701832A CA 2701832 C CA2701832 C CA 2701832C
- Authority
- CA
- Canada
- Prior art keywords
- layer
- microporous membrane
- pore size
- microporous
- average pore
- 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.)
- Expired - Fee Related
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 90
- 239000011148 porous material Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims description 63
- 239000010410 layer Substances 0.000 claims abstract description 83
- 239000002667 nucleating agent Substances 0.000 claims abstract description 79
- 229920000642 polymer Polymers 0.000 claims abstract description 78
- 239000012982 microporous membrane Substances 0.000 claims abstract description 65
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 63
- 239000011159 matrix material Substances 0.000 claims abstract description 37
- -1 poly(vinylidene fluoride) Polymers 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 33
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- IVVOCRBADNIWDM-UHFFFAOYSA-N bicyclo[2.2.1]heptane-2,3-dicarboxylic acid Chemical compound C1CC2C(C(O)=O)C(C(=O)O)C1C2 IVVOCRBADNIWDM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003085 diluting agent Substances 0.000 claims description 88
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 claims description 62
- 235000013773 glyceryl triacetate Nutrition 0.000 claims description 31
- 229960002622 triacetin Drugs 0.000 claims description 31
- 238000002145 thermally induced phase separation Methods 0.000 claims description 29
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000009827 uniform distribution Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000008199 coating composition Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 239000012229 microporous material Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 7
- 210000004027 cell Anatomy 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- 240000004808 Saccharomyces cerevisiae Species 0.000 abstract description 3
- 210000003743 erythrocyte Anatomy 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000001471 micro-filtration Methods 0.000 abstract description 2
- 239000002356 single layer Substances 0.000 abstract description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 48
- 239000000203 mixture Substances 0.000 description 43
- 229920001169 thermoplastic Polymers 0.000 description 29
- 230000008569 process Effects 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000000155 melt Substances 0.000 description 16
- 238000002425 crystallisation Methods 0.000 description 14
- 230000008025 crystallization Effects 0.000 description 14
- 238000002156 mixing Methods 0.000 description 13
- 238000005266 casting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 11
- 238000002844 melting Methods 0.000 description 11
- 238000000576 coating method Methods 0.000 description 10
- 229920002959 polymer blend Polymers 0.000 description 10
- 238000010791 quenching Methods 0.000 description 10
- 239000012071 phase Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- FXDGCBFGSXNGQD-FAESFXMKSA-L disodium;(1s,2s,3r,4r)-bicyclo[2.2.1]heptane-2,3-dicarboxylate Chemical compound [Na+].[Na+].C1C[C@H]2[C@@H](C([O-])=O)[C@@H](C(=O)[O-])[C@@H]1C2 FXDGCBFGSXNGQD-FAESFXMKSA-L 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005191 phase separation Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000004599 antimicrobial Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000001055 blue pigment Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000001087 glyceryl triacetate Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000003612 virological effect Effects 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 241000756998 Alismatales Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D67/0018—Thermally induced processes [TIPS]
-
- 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
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
- B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
-
- 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
- B01D69/12—Composite membranes; Ultra-thin 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
- Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249981—Plural void-containing components
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Laminated Bodies (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97916007P | 2007-10-11 | 2007-10-11 | |
| US60/979,160 | 2007-10-11 | ||
| PCT/US2008/077458 WO2009048743A1 (en) | 2007-10-11 | 2008-09-24 | Microporous membranes having a relatively large average pore size and methods of making the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2701832A1 CA2701832A1 (en) | 2009-04-16 |
| CA2701832C true CA2701832C (en) | 2015-11-03 |
Family
ID=40012252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2701832A Expired - Fee Related CA2701832C (en) | 2007-10-11 | 2008-09-24 | Microporous membranes having a relatively large average pore size and methods of making the same |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8182908B2 (enExample) |
| EP (1) | EP2219766B1 (enExample) |
| JP (1) | JP5524849B2 (enExample) |
| KR (1) | KR101408473B1 (enExample) |
| CN (1) | CN101820987B (enExample) |
| BR (1) | BRPI0816636A2 (enExample) |
| CA (1) | CA2701832C (enExample) |
| WO (1) | WO2009048743A1 (enExample) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160105527A (ko) | 2008-07-10 | 2016-09-06 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 점탄성 도광체 |
| KR20110043732A (ko) | 2008-08-08 | 2011-04-27 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 광을 처리하기 위한 점탄성층을 갖는 도광체 |
| WO2010078482A1 (en) | 2008-12-31 | 2010-07-08 | 3M Innovative Properties Company | Live bioload detection using microparticles |
| EP2379697A2 (en) | 2008-12-31 | 2011-10-26 | 3M Innovative Properties Company | Sampling devices and methods for concentrating microorganisms |
| EP2379227B1 (en) | 2008-12-31 | 2014-01-22 | 3M Innovative Properties Company | Methods for isolating microorganisms |
| EP2445541A1 (en) | 2009-06-25 | 2012-05-02 | 3M Innovative Properties Company | Light-activated antimicrobial article and method of use |
| US8877125B2 (en) | 2009-06-30 | 2014-11-04 | 3M Innovative Properties Company | Light-activated antimicrobial articles and methods of use |
| CN102085457B (zh) * | 2009-12-07 | 2013-01-02 | 广州美能材料科技有限公司 | 一种制备复合多层多孔中空纤维膜的方法及其装置和产品 |
| EP2519355B1 (en) | 2009-12-30 | 2017-01-25 | 3M Innovative Properties Company | Live bioload detection using microparticles |
| WO2012056619A1 (ja) * | 2010-10-26 | 2012-05-03 | コニカミノルタオプト株式会社 | 樹脂フィルムの製造方法、流延ダイ、樹脂フィルムの製造装置、樹脂フィルム、偏光板、及び液晶表示装置 |
| CN103084071B (zh) * | 2011-05-23 | 2015-04-15 | 刘镇江 | 超滤膜自动化生产方法 |
| WO2012174204A2 (en) | 2011-06-17 | 2012-12-20 | Fiberweb, Inc. | Vapor permeable, substantially water impermeable multilayer article |
| US10369769B2 (en) | 2011-06-23 | 2019-08-06 | Fiberweb, Inc. | Vapor-permeable, substantially water-impermeable multilayer article |
| PL2723568T3 (pl) | 2011-06-23 | 2018-01-31 | Fiberweb Llc | Przepuszczalny dla pary, zasadniczo nieprzepuszczalny dla wody wielowarstwowy wyrób |
| US9765459B2 (en) | 2011-06-24 | 2017-09-19 | Fiberweb, Llc | Vapor-permeable, substantially water-impermeable multilayer article |
| KR20150064059A (ko) * | 2012-10-02 | 2015-06-10 | 제이엔씨 주식회사 | 미다공막 및 그 제조 방법 |
| WO2015005584A1 (ko) * | 2013-07-10 | 2015-01-15 | 한국생산기술연구원 | 섬유배향 복합재의 제조방법, 그로부터 제조된 섬유배향 복합재, 상기 섬유배향 복합재로 이루어진 반사편광필름 및 그 제조방법 |
| EP2883599A3 (en) * | 2013-11-25 | 2015-10-14 | Lotte Chemical Corporation of (Sindaebang-dong) | Polymer resin composition for preparing hollow fiber membrane, preparation method of hollow fiber membrane, and hollow fiber membrane |
| WO2015188133A1 (en) | 2014-06-06 | 2015-12-10 | Zeus Industrial Products, Inc. | Peelable heat-shrinking tubing |
| EP3171969A4 (en) | 2014-07-22 | 2018-03-14 | Arkema, Inc. | High toughness hollow fiber membranes based on vinylidene fluoride polymers |
| KR102299957B1 (ko) * | 2014-07-30 | 2021-09-08 | 에스케이이노베이션 주식회사 | 폴리올레핀계 다층 복합 다공막의 제조방법 |
| EP3183290A4 (en) | 2014-08-21 | 2018-09-05 | Yen, William Winchin | Microporous sheet product and methods for making and using the same |
| WO2016073558A1 (en) | 2014-11-05 | 2016-05-12 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
| WO2016073580A1 (en) | 2014-11-05 | 2016-05-12 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
| KR101694893B1 (ko) | 2015-10-20 | 2017-01-23 | 롯데케미칼 주식회사 | 중공사막 제조용 고분자 수지 조성물, 중공사막의 제조 방법 및 중공사막 |
| CN105401364B (zh) * | 2015-11-30 | 2017-08-01 | 安徽元琛环保科技股份有限公司 | 一种纳米纤维面层过滤材料后处理工艺及其设备 |
| GB2547910A (en) * | 2016-03-02 | 2017-09-06 | Icon Tech Systems Ltd | Filter |
| GB201703383D0 (en) | 2017-03-02 | 2017-04-19 | Gargle Tech Ltd | Testing for particulates |
| WO2020049569A2 (en) | 2018-09-05 | 2020-03-12 | Hero Scientific Ltd. | Testing for particulates |
| US12449336B2 (en) | 2020-03-11 | 2025-10-21 | Hero Scientific Ltd. | Testing devices |
| JP2023522351A (ja) * | 2020-04-20 | 2023-05-30 | セルガード エルエルシー | 個人用保護具のための材料 |
| US11253819B2 (en) * | 2020-05-14 | 2022-02-22 | Saudi Arabian Oil Company | Production of thin film composite hollow fiber membranes |
| CN114347521A (zh) * | 2020-10-14 | 2022-04-15 | 浙江省化工研究院有限公司 | 一种非定向pvf薄膜的制备方法 |
| WO2022133122A2 (en) * | 2020-12-16 | 2022-06-23 | Spectra Systems Corporation | Porous polymer substrates and coatings for banknotes and other security articles |
| CA3202405A1 (en) | 2021-01-06 | 2022-07-14 | Zvi Feldman | Filtration sampling devices |
| US12116326B2 (en) | 2021-11-22 | 2024-10-15 | Saudi Arabian Oil Company | Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539256A (en) | 1982-09-09 | 1985-09-03 | Minnesota Mining And Manufacturing Co. | Microporous sheet material, method of making and articles made therewith |
| US4618533A (en) | 1984-11-30 | 1986-10-21 | Millipore Corporation | Porous membrane having hydrophilic surface and process |
| US4726989A (en) * | 1986-12-11 | 1988-02-23 | Minnesota Mining And Manufacturing | Microporous materials incorporating a nucleating agent and methods for making same |
| JPH078549B2 (ja) * | 1987-05-29 | 1995-02-01 | 東レ株式会社 | ポリフッ化ビニリデン系樹脂多孔性膜およびその製造方法 |
| US5120594A (en) | 1989-11-20 | 1992-06-09 | Minnesota Mining And Manufacturing Company | Microporous polyolefin shaped articles with patterned surface areas of different porosity |
| NL9100278A (nl) | 1991-02-18 | 1992-09-16 | Stamicarbon | Microporeuze folie en werkwijze voor de vervaardiging daarvan. |
| NL9100279A (nl) | 1991-02-18 | 1992-09-16 | Stamicarbon | Microporeuze folie uit polyetheen en werkwijze voor de vervaardiging daarvan. |
| US6126826A (en) | 1992-05-06 | 2000-10-03 | Whatman Inc. | PVDF microporous membrane and method |
| CN1103682C (zh) | 1996-01-22 | 2003-03-26 | Usf过滤和分离集团公司 | 高度多孔的聚偏二氟乙烯膜及由其制备的过滤器 |
| US5976686A (en) | 1997-10-24 | 1999-11-02 | 3M Innovative Properties Company | Diffuse reflective articles |
| JP5156158B2 (ja) * | 2001-02-22 | 2013-03-06 | 東レバッテリーセパレータフィルム株式会社 | 複合膜およびその製造方法 |
| US6632850B2 (en) | 2001-04-04 | 2003-10-14 | 3M Innovative Properties Company | Microporous materials and methods of making the same |
| US7575703B2 (en) * | 2003-02-26 | 2009-08-18 | Eidgenössische Technische Hochschule Zürich | Polymer gel-processing techniques and high modulus products |
| US7338692B2 (en) * | 2003-09-12 | 2008-03-04 | 3M Innovative Properties Company | Microporous PVDF films |
| US20060148915A1 (en) * | 2004-12-30 | 2006-07-06 | Floyd Robert M | Microporous materials and methods of making |
| US7553417B2 (en) | 2005-12-30 | 2009-06-30 | 3M Innovative Properties Company | Functionalized substrates |
-
2008
- 2008-09-24 WO PCT/US2008/077458 patent/WO2009048743A1/en not_active Ceased
- 2008-09-24 BR BRPI0816636A patent/BRPI0816636A2/pt not_active IP Right Cessation
- 2008-09-24 CN CN200880111205XA patent/CN101820987B/zh not_active Expired - Fee Related
- 2008-09-24 KR KR1020107010334A patent/KR101408473B1/ko not_active Expired - Fee Related
- 2008-09-24 EP EP08837776.7A patent/EP2219766B1/en not_active Not-in-force
- 2008-09-24 US US12/680,592 patent/US8182908B2/en not_active Expired - Fee Related
- 2008-09-24 JP JP2010528932A patent/JP5524849B2/ja active Active
- 2008-09-24 CA CA2701832A patent/CA2701832C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101820987B (zh) | 2013-03-13 |
| CN101820987A (zh) | 2010-09-01 |
| KR101408473B1 (ko) | 2014-06-17 |
| JP5524849B2 (ja) | 2014-06-18 |
| US20100221522A1 (en) | 2010-09-02 |
| EP2219766B1 (en) | 2017-03-08 |
| KR20100098504A (ko) | 2010-09-07 |
| WO2009048743A1 (en) | 2009-04-16 |
| JP2011501773A (ja) | 2011-01-13 |
| EP2219766A1 (en) | 2010-08-25 |
| CA2701832A1 (en) | 2009-04-16 |
| BRPI0816636A2 (pt) | 2019-04-09 |
| US8182908B2 (en) | 2012-05-22 |
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