CH658406A5 - Matiere filtrante fibreuse et procede pour sa preparation. - Google Patents
Matiere filtrante fibreuse et procede pour sa preparation. Download PDFInfo
- Publication number
- CH658406A5 CH658406A5 CH6052/82A CH605282A CH658406A5 CH 658406 A5 CH658406 A5 CH 658406A5 CH 6052/82 A CH6052/82 A CH 6052/82A CH 605282 A CH605282 A CH 605282A CH 658406 A5 CH658406 A5 CH 658406A5
- Authority
- CH
- Switzerland
- Prior art keywords
- resin
- microfibers
- sheet
- polymer
- filtration
- Prior art date
Links
- 238000001914 filtration Methods 0.000 title claims description 135
- 238000000034 method Methods 0.000 title claims description 65
- 239000000463 material Substances 0.000 title claims description 37
- 230000008569 process Effects 0.000 title claims description 24
- 238000002360 preparation method Methods 0.000 title claims description 12
- 229920005989 resin Polymers 0.000 claims description 175
- 239000011347 resin Substances 0.000 claims description 175
- 229920001410 Microfiber Polymers 0.000 claims description 144
- 239000003658 microfiber Substances 0.000 claims description 144
- 239000003795 chemical substances by application Substances 0.000 claims description 75
- 239000012528 membrane Substances 0.000 claims description 73
- 239000006185 dispersion Substances 0.000 claims description 66
- 230000001376 precipitating effect Effects 0.000 claims description 60
- 239000011230 binding agent Substances 0.000 claims description 51
- 239000011521 glass Substances 0.000 claims description 47
- 125000002091 cationic group Chemical group 0.000 claims description 46
- 229920000642 polymer Polymers 0.000 claims description 42
- 239000002245 particle Substances 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000007864 aqueous solution Substances 0.000 claims description 35
- 239000000243 solution Substances 0.000 claims description 30
- 239000000835 fiber Substances 0.000 claims description 27
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- 239000011148 porous material Substances 0.000 claims description 19
- 125000000129 anionic group Chemical group 0.000 claims description 16
- 229920001187 thermosetting polymer Polymers 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 15
- 239000011707 mineral Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 239000004840 adhesive resin Substances 0.000 claims description 14
- 229920006223 adhesive resin Polymers 0.000 claims description 14
- 239000007900 aqueous suspension Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 7
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 3
- 229920001059 synthetic polymer Polymers 0.000 claims description 3
- 230000001427 coherent effect Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 description 38
- 238000012360 testing method Methods 0.000 description 31
- 239000000725 suspension Substances 0.000 description 21
- 239000004816 latex Substances 0.000 description 14
- 229920000126 latex Polymers 0.000 description 14
- 239000002158 endotoxin Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 13
- 239000000047 product Substances 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 7
- 229920003043 Cellulose fiber Polymers 0.000 description 6
- 241000607715 Serratia marcescens Species 0.000 description 6
- 239000011324 bead Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000003993 interaction Effects 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000001994 activation Methods 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 239000012736 aqueous medium Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- 241000589539 Brevundimonas diminuta Species 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 241000282887 Suidae Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 239000003637 basic solution Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 238000007429 general method Methods 0.000 description 3
- 239000007970 homogeneous dispersion Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 229940047670 sodium acrylate Drugs 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 230000008570 general process Effects 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical group ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 101150046236 CNR1 gene Proteins 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000239218 Limulus Species 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical group OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229940048053 acrylate Drugs 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- XENVCRGQTABGKY-ZHACJKMWSA-N chlorohydrin Chemical compound CC#CC#CC#CC#C\C=C\C(Cl)CO XENVCRGQTABGKY-ZHACJKMWSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 230000005087 leaf formation Effects 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 239000006166 lysate Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 239000013642 negative control Substances 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- -1 po-lypropylene Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010088 rubber extraction Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
- 239000004846 water-soluble epoxy resin Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
- B01D39/2024—Glass or glassy material the material being filamentary or fibrous otherwise bonded, e.g. by resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/312,723 US4523995A (en) | 1981-10-19 | 1981-10-19 | Charge-modified microfiber filter sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH658406A5 true CH658406A5 (fr) | 1986-11-14 |
Family
ID=23212717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH6052/82A CH658406A5 (fr) | 1981-10-19 | 1982-10-18 | Matiere filtrante fibreuse et procede pour sa preparation. |
Country Status (12)
Families Citing this family (64)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4801386A (en) * | 1981-06-19 | 1989-01-31 | Mitsubishi Rayon Co., Ltd. | Process of using a porous water-treating material |
| JPS58101721A (ja) * | 1981-12-11 | 1983-06-17 | Toa Nenryo Kogyo Kk | フイルタ− |
| US4617124A (en) * | 1982-07-13 | 1986-10-14 | Pall Corporation | Polymeric microfibrous filter sheet, preparation and use |
| US4620932A (en) * | 1983-06-06 | 1986-11-04 | Howery Kenneth A | Submicronic hydrophilic filter media |
| JPS6058221A (ja) * | 1983-09-09 | 1985-04-04 | Toyo Roshi Kk | 空気濾過用濾材 |
| JPS6290395A (ja) * | 1985-06-24 | 1987-04-24 | ニッタ株式会社 | 濾紙とその製造方法 |
| US4693928A (en) * | 1986-02-10 | 1987-09-15 | Pall Corporation | Porous, fibrous structures with thermoplastic fluorocarbon coating and method of making |
| US4702947A (en) * | 1986-04-01 | 1987-10-27 | Pall Corporation | Fibrous structure and method of manufacture |
| US4765812A (en) * | 1987-10-30 | 1988-08-23 | Allied-Signal Inc. | Air laid filtering material |
| US4946603A (en) * | 1988-11-17 | 1990-08-07 | Crystal Diagnostics, Inc. | Electronegatively charged blood filter and blood cell separation method |
| US4981591A (en) * | 1989-04-07 | 1991-01-01 | Cuno, Incorporated | Cationic charge modified filter media |
| US5085780A (en) * | 1989-04-07 | 1992-02-04 | Cuno, Incorporated | Use of cationic charge modified filter media |
| US5085784A (en) * | 1989-04-07 | 1992-02-04 | Cuno, Incorporated | Use of cationic charge modified filter media |
| WO1991007648A1 (en) * | 1989-11-08 | 1991-05-30 | Fmc Corporation | Combined centrifuge tube and porous selection means for separation and recovery of biological materials |
| US5104546A (en) * | 1990-07-03 | 1992-04-14 | Aluminum Company Of America | Pyrogens separations by ceramic ultrafiltration |
| US5151192A (en) * | 1990-07-13 | 1992-09-29 | Pall Corporation | Method for removing heparin from blood or plasma |
| US5151189A (en) * | 1990-09-17 | 1992-09-29 | Gelman Sciences, Inc. | Cationic charge modified microporous membrane |
| US5498336A (en) * | 1991-02-22 | 1996-03-12 | Terumo Kabushiki Kaisha | Leukocyte-removing filter and leukocyte-removing apparatus furnished therewith |
| JP3124565B2 (ja) * | 1991-02-22 | 2001-01-15 | テルモ株式会社 | 白血球除去フィルターおよび白血球除去装置 |
| US5242595A (en) * | 1991-04-25 | 1993-09-07 | U.S. Filter/Illinois Water Treatment, Inc. | Bacteria removal by ceramic microfiltration |
| US5543047A (en) * | 1992-11-06 | 1996-08-06 | Pall Corporation | Filter with over-laid pleats in intimate contact |
| DE69422154T2 (de) * | 1993-07-21 | 2000-06-29 | Unitika Ltd., Amagasaki | Poröses rohr aus faserverstärktem kunststoff und verfahren zu dessen herstellung |
| US5626761A (en) * | 1993-12-17 | 1997-05-06 | Poly-Bio-Marine, Inc. | Chemical and particulate filtration system/apparatus |
| US5529844A (en) * | 1994-04-29 | 1996-06-25 | Pall Corporation | Aramid fiber filtration sheet |
| US5582907A (en) * | 1994-07-28 | 1996-12-10 | Pall Corporation | Melt-blown fibrous web |
| JPH10508343A (ja) * | 1994-07-28 | 1998-08-18 | ポール・コーポレーション | 繊維質ウェブ及びその製造方法 |
| US5709798A (en) * | 1995-06-19 | 1998-01-20 | Pall Corporation | Fibrous nonwoven web |
| US5855788A (en) * | 1996-02-07 | 1999-01-05 | Kimberly-Clark Worldwide, Inc. | Chemically charged-modified filter for removing particles from a liquid and method thereof |
| US5912194A (en) * | 1996-08-30 | 1999-06-15 | Kimberly Clark Corp. | Permeable liquid flow control material |
| US6290848B1 (en) * | 1997-04-16 | 2001-09-18 | Pur Water Purification Products, Inc. | Filter cartridge for gravity-fed water treatment devices |
| US6274041B1 (en) | 1998-12-18 | 2001-08-14 | Kimberly-Clark Worldwide, Inc. | Integrated filter combining physical adsorption and electrokinetic adsorption |
| US6537614B1 (en) * | 1998-12-18 | 2003-03-25 | Kimberly-Clark Worldwide, Inc. | Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist |
| TW480246B (en) * | 1998-12-18 | 2002-03-21 | Kimberly Clark Co | Cationically charged coating on glass fibers and method for making the same |
| US6780327B1 (en) | 1999-02-25 | 2004-08-24 | Pall Corporation | Positively charged membrane |
| US6274103B1 (en) * | 1999-03-26 | 2001-08-14 | Prismedical Corporation | Apparatus and method for preparation of a peritoneal dialysis solution |
| US6849185B1 (en) * | 1999-05-14 | 2005-02-01 | Pall Corp | Charged membrane |
| KR20020029669A (ko) * | 1999-07-21 | 2002-04-19 | 데이비드 엠 모이어 | 미생물 필터 및 수중 미생물 제거 방법 |
| US6818130B1 (en) | 1999-09-30 | 2004-11-16 | Kimberly-Clark Worldwide, Inc. | Method and apparatus for multistage liquid filtration |
| US7163625B1 (en) | 1999-12-16 | 2007-01-16 | Kimberly-Clark Worldwide, Inc. | Filtration device |
| US6645388B2 (en) | 1999-12-22 | 2003-11-11 | Kimberly-Clark Corporation | Leukocyte depletion filter media, filter produced therefrom, method of making same and method of using same |
| US20010040136A1 (en) * | 1999-12-22 | 2001-11-15 | Kimberly-Clark Worldwide, Inc. | Cationically charged coating on glass and nonwoven fibers |
| WO2001068228A1 (en) * | 2000-03-13 | 2001-09-20 | The University Of Akron | Method and apparatus of mixing fibers |
| US20020030008A1 (en) * | 2000-03-31 | 2002-03-14 | Kimberly-Clark Worldwide, Inc. | Multi-component filter design |
| US7601262B1 (en) | 2001-06-22 | 2009-10-13 | Argonide Corporation | Sub-micron filter |
| RU2304463C2 (ru) * | 2001-06-22 | 2007-08-20 | Аргонид Корпорейшн | Наноразмерный электроположительный волокнистый адсорбент |
| US7615152B2 (en) | 2001-08-23 | 2009-11-10 | Pur Water Purification Products, Inc. | Water filter device |
| US7614507B2 (en) | 2001-08-23 | 2009-11-10 | Pur Water Purification Products Inc. | Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same |
| KR100777951B1 (ko) | 2001-08-23 | 2007-11-28 | 더 프록터 앤드 갬블 캄파니 | 정수 필터 재료, 대응하는 정수 필터 및 그의 사용 방법 |
| US20050279696A1 (en) * | 2001-08-23 | 2005-12-22 | Bahm Jeannine R | Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles |
| US7614508B2 (en) | 2001-08-23 | 2009-11-10 | Pur Water Purification Products Inc. | Water filter materials, water filters and kits containing silver coated particles and processes for using the same |
| US6835311B2 (en) | 2002-01-31 | 2004-12-28 | Koslow Technologies Corporation | Microporous filter media, filtration systems containing same, and methods of making and using |
| US20040224594A1 (en) * | 2003-04-18 | 2004-11-11 | Choi Wai Ming | Low density nonwoven glass fiber web |
| JP4836420B2 (ja) * | 2003-08-06 | 2011-12-14 | 旭化成クリーン化学株式会社 | 繊維製接触材と水処理装置および水処理方法 |
| US20080026041A1 (en) * | 2005-09-12 | 2008-01-31 | Argonide Corporation | Non-woven media incorporating ultrafine or nanosize powders |
| US7390343B2 (en) * | 2005-09-12 | 2008-06-24 | Argonide Corporation | Drinking water filtration device |
| DE102007023806A1 (de) * | 2007-05-21 | 2008-11-27 | Carl Freudenberg Kg | Lagenverbund zur Verwendung in einem Luftfilter |
| CA2708117C (en) * | 2007-12-06 | 2015-08-25 | John M. Sebastian | Electret webs with charge-enhancing additives |
| BRPI0909855A2 (pt) * | 2008-06-02 | 2015-10-06 | 3M Innovative Properties Co | "aditivos acentuadores de carga para eletretos" |
| US7765698B2 (en) * | 2008-06-02 | 2010-08-03 | 3M Innovative Properties Company | Method of making electret articles based on zeta potential |
| RU2448207C1 (ru) * | 2008-06-02 | 2012-04-20 | 3М Инновейтив Пропертиз Компани | Электретные полотна с усиливающими заряд добавками |
| US9108968B2 (en) | 2012-04-25 | 2015-08-18 | Ppg Industries Ohio, Inc. | Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene by reaction of a disubstituted carbodiimide and dipropylene triamine |
| CN104507548A (zh) | 2012-06-27 | 2015-04-08 | 阿尔戈耐德公司 | 铝化硅质粉末和包含其的水纯化装置 |
| DE102013012678A1 (de) * | 2013-07-31 | 2015-02-05 | Mann + Hummel Gmbh | Flachfiltermedien zur abtrennung von plasma oder serum von vollblut |
| WO2022226255A1 (en) * | 2021-04-22 | 2022-10-27 | Innovaprep Llc | Prefilters for particle concentrators |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2040818A (en) * | 1932-07-29 | 1936-05-19 | Johns Manville | Coated diatomaceous earth product and method of making the same |
| US2036258A (en) * | 1932-10-05 | 1936-04-07 | Johns Manville | Electropositive composition and method of making the same |
| NL66907C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1945-07-13 | |||
| US2797163A (en) * | 1952-11-22 | 1957-06-25 | Walter J Smith | Method of making filter media |
| US2971907A (en) * | 1955-08-17 | 1961-02-14 | Walter J Smith | Filter media and method of making |
| NL231136A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1957-09-05 | |||
| US2926154A (en) * | 1957-09-05 | 1960-02-23 | Hercules Powder Co Ltd | Cationic thermosetting polyamide-epichlorohydrin resins and process of making same |
| NL287283A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1961-03-27 | |||
| NL130162C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1962-08-06 | |||
| US3352424A (en) * | 1964-02-07 | 1967-11-14 | Dow Chemical Co | Coated filter aids |
| GB1043616A (en) * | 1963-03-07 | 1966-09-21 | Dow Chemical Co | Coated filter aid and improved filtration method |
| US3353682A (en) * | 1966-02-28 | 1967-11-21 | Pall Corp | Fluid-permeable fibrous multilayer materials and process of making the same |
| ZA741228B (en) * | 1973-03-02 | 1975-01-29 | Ici Ltd | Filtration |
| CA1044537A (en) * | 1973-05-09 | 1978-12-19 | Amf Incorporated | Filter medium and process |
| GB2043734B (en) * | 1979-03-01 | 1983-08-17 | Amf Inc | Filter and method of making same |
| US4230573A (en) * | 1979-06-08 | 1980-10-28 | Amf Incorporated | Cartridge filter and method of making same |
| CA1162438A (en) * | 1979-08-09 | 1984-02-21 | James T. Greene | Beverage filtration process |
| US4282261A (en) * | 1979-08-09 | 1981-08-04 | Amf Incorporated | Beverage filtration process |
| US4288462A (en) * | 1980-02-04 | 1981-09-08 | Amf Incorporated | Method for removing cationic contaminants from beverages |
-
1981
- 1981-10-19 US US06/312,723 patent/US4523995A/en not_active Expired - Lifetime
-
1982
- 1982-10-12 EP EP82305431A patent/EP0077633B1/en not_active Expired
- 1982-10-12 DE DE8282305431T patent/DE3262814D1/de not_active Expired
- 1982-10-14 AU AU89344/82A patent/AU8934482A/en not_active Abandoned
- 1982-10-18 CA CA000413608A patent/CA1190156A/en not_active Expired
- 1982-10-18 GB GB08229752A patent/GB2109429B/en not_active Expired
- 1982-10-18 PT PT75693A patent/PT75693B/pt unknown
- 1982-10-18 CH CH6052/82A patent/CH658406A5/fr not_active IP Right Cessation
- 1982-10-19 FR FR8217496A patent/FR2515063A1/fr active Granted
- 1982-10-19 ES ES516645A patent/ES8400674A1/es not_active Expired
- 1982-10-19 JP JP57183608A patent/JPS5879543A/ja active Granted
- 1982-10-19 ZA ZA827627A patent/ZA827627B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5879543A (ja) | 1983-05-13 |
| EP0077633A1 (en) | 1983-04-27 |
| PT75693A (en) | 1982-11-01 |
| GB2109429A (en) | 1983-06-02 |
| ES516645A0 (es) | 1983-11-01 |
| FR2515063B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1985-04-05 |
| US4523995A (en) | 1985-06-18 |
| GB2109429B (en) | 1985-07-31 |
| JPS6144536B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1986-10-03 |
| ES8400674A1 (es) | 1983-11-01 |
| PT75693B (en) | 1985-01-10 |
| CA1190156A (en) | 1985-07-09 |
| AU8934482A (en) | 1983-04-28 |
| EP0077633B1 (en) | 1985-03-27 |
| DE3262814D1 (en) | 1985-05-02 |
| FR2515063A1 (fr) | 1983-04-29 |
| ZA827627B (en) | 1984-06-27 |
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| PL | Patent ceased |