IL43199A - Semipermeable membrane and method for its formation - Google Patents
Semipermeable membrane and method for its formationInfo
- Publication number
- IL43199A IL43199A IL43199A IL4319973A IL43199A IL 43199 A IL43199 A IL 43199A IL 43199 A IL43199 A IL 43199A IL 4319973 A IL4319973 A IL 4319973A IL 43199 A IL43199 A IL 43199A
- Authority
- IL
- Israel
- Prior art keywords
- hydrophilic
- segments
- hydrophobic
- percent
- membrane
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims description 82
- 238000000034 method Methods 0.000 title claims description 13
- 230000015572 biosynthetic process Effects 0.000 title description 6
- 229920000642 polymer Polymers 0.000 claims description 43
- 230000002209 hydrophobic effect Effects 0.000 claims description 37
- 239000002904 solvent Substances 0.000 claims description 23
- 238000005266 casting Methods 0.000 claims description 18
- 229920001577 copolymer Polymers 0.000 claims description 18
- 239000012736 aqueous medium Substances 0.000 claims description 8
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 8
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 8
- 229920001600 hydrophobic polymer Polymers 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims 8
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims 8
- 239000002609 medium Substances 0.000 claims 2
- 229920000578 graft copolymer Polymers 0.000 description 32
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 28
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 238000000108 ultra-filtration Methods 0.000 description 17
- 239000000203 mixture Substances 0.000 description 16
- 238000000926 separation method Methods 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 230000004907 flux Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000010926 purge Methods 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- -1 allyl glycidyl ethers Chemical class 0.000 description 6
- 229920006176 crosslinked polyethyleneglycol Polymers 0.000 description 6
- 229940102838 methylmethacrylate Drugs 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229920002554 vinyl polymer Polymers 0.000 description 6
- 229920001400 block copolymer Polymers 0.000 description 5
- 230000001351 cycling effect Effects 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000012527 feed solution Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920001477 hydrophilic polymer Polymers 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- UDJZTGMLYITLIQ-UHFFFAOYSA-N 1-ethenylpyrrolidine Chemical group C=CN1CCCC1 UDJZTGMLYITLIQ-UHFFFAOYSA-N 0.000 description 1
- 101100083503 Caenorhabditis elegans acl-1 gene Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Natural products CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910004373 HOAc Inorganic materials 0.000 description 1
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 241001024304 Mino Species 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 229940063557 methacrylate Drugs 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000807 solvent casting Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000004711 α-olefin Substances 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
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/80—Block polymers
-
- 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
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/78—Graft polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F271/00—Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00
- C08F271/02—Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00 on to polymers of monomers containing heterocyclic nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Polyesters Or Polycarbonates (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Graft Or Block Polymers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US290850A US3901810A (en) | 1972-09-21 | 1972-09-21 | Ultrafiltration membranes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL43199A0 IL43199A0 (en) | 1973-11-28 |
| IL43199A true IL43199A (en) | 1977-02-28 |
Family
ID=23117802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL43199A IL43199A (en) | 1972-09-21 | 1973-09-11 | Semipermeable membrane and method for its formation |
Country Status (10)
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500937A (en) * | 1974-03-26 | 1978-02-15 | Us Health | Process for producing a polycarbonate hemodialysis membrane |
| DE2431071C2 (de) * | 1974-06-28 | 1982-03-04 | Bayer Ag, 5090 Leverkusen | Asymmetrische, semipermeable Membranen aus cyclischen Polyharnstoffen und deren Verwendung zur Meerwasserentsalzung oder zur Trennung und Konzentrierung von Stoffgemischen |
| JPS5170190A (ja) * | 1974-12-17 | 1976-06-17 | Mitsubishi Petrochemical Co | Kotokaseimaku |
| JPS5820647B2 (ja) * | 1974-12-27 | 1983-04-25 | ユニチカ株式会社 | 透水性のすぐれた限外「ろ」過膜の製造法 |
| DE2816085B2 (de) * | 1978-04-13 | 1981-04-23 | Sartorius GmbH, 3400 Göttingen | Asymmetrische Ultrafiltrationsmembrane auf der Basis von Zellulosehydrat |
| US4181606A (en) * | 1978-06-06 | 1980-01-01 | Monsanto Company | Lactam terpolymer membranes |
| JPS5554004A (en) * | 1978-10-18 | 1980-04-21 | Teijin Ltd | Selective permeable membrane and its manufacturing |
| SE423106B (sv) * | 1980-07-25 | 1982-04-13 | Gambro Dialysatoren | Plasmaferesmembran samt sett att tillverka detta |
| EP0046816A1 (en) * | 1980-09-01 | 1982-03-10 | Gambro, Inc. | Polycarbonate hemofiltration membrane and method of hemofiltering using such a membrane |
| ATE10437T1 (de) * | 1980-09-01 | 1984-12-15 | Gambro, Inc. | Trockene polycarbonatmembran und verfahren zur herstellung. |
| JPS5892411A (ja) * | 1981-11-30 | 1983-06-01 | Asahi Medical Kk | 血液及び血漿処理用半透膜 |
| US4707266A (en) * | 1982-02-05 | 1987-11-17 | Pall Corporation | Polyamide membrane with controlled surface properties |
| JPS59193102A (ja) * | 1983-04-16 | 1984-11-01 | Asahi Medical Kk | 選択透過性中空糸 |
| JPS6164302A (ja) * | 1984-09-05 | 1986-04-02 | Agency Of Ind Science & Technol | アルコール水溶液の濃縮方法 |
| JPS6164305A (ja) * | 1984-09-07 | 1986-04-02 | Agency Of Ind Science & Technol | アルコール水溶液の濃縮方法 |
| GB8611838D0 (en) * | 1986-05-15 | 1986-06-25 | Yarsley Technical Centre Ltd | Hydrophilic copolymers |
| JPS6440524A (en) * | 1987-08-06 | 1989-02-10 | Daicel Chem | Modified aromatic polymer and production thereof |
| US4873037A (en) * | 1988-10-05 | 1989-10-10 | The Dow Chemical Company | Method for preparing an asymmetric semi-permeable membrane |
| US5068195A (en) * | 1988-11-02 | 1991-11-26 | Du Pont Merck Pharmaceutical Company | Dot matrix membrane cell expansion and maintenance vessel |
| DE69120177T2 (de) * | 1990-09-10 | 1996-10-10 | Synthes Ag | Membran für Knochenregenerierung |
| US5290418A (en) * | 1992-09-24 | 1994-03-01 | Applied Biosystems, Inc. | Viscous electrophoresis polymer medium and method |
| FR2739625B1 (fr) * | 1995-10-09 | 1997-12-05 | Atochem Elf Sa | Copolymeres hydrosolubles associatifs triblocs |
| US5785857A (en) * | 1996-04-30 | 1998-07-28 | Mobile Process Technology, Inc. | Mobile process for the recovery of spent heat transfer fluids |
| EP1339777A2 (en) * | 2000-09-11 | 2003-09-03 | Massachusetts Institute Of Technology | Graft copolymers, methods for grafting hydrophilic chains onto hydrophobic polymers, and articles thereof |
| EP2012910A1 (en) * | 2006-04-11 | 2009-01-14 | Massachusetts Institute of Technology | Fouling resistant membranes formed with polyacrylonitrile graft copolymers |
| DE102006045282C5 (de) | 2006-09-22 | 2012-11-22 | Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH | Isoporöse Membran und Verfahren zu ihrer Herstellung |
| AU2014355200B2 (en) * | 2013-11-28 | 2018-09-20 | Cytiva Bioprocess R&D Ab | Stabilization of fermented beverages |
| CN113357840B (zh) * | 2021-06-03 | 2022-05-13 | 大连理工大学 | 一种低温强化渗透选择性的含氮天然气膜分离工艺 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3227510A (en) * | 1958-03-04 | 1966-01-04 | Tee Pak Inc | Dyeing substrates ionically binding in localized areas catalysts for the predyeing olefin polymerization thereon |
| US3386912A (en) * | 1965-01-07 | 1968-06-04 | Puraq Company | Desalination of sea water |
| US3497573A (en) * | 1966-01-18 | 1970-02-24 | Dart Ind Inc | Block copolymers of propylene and a polar monomer |
| GB1252660A (en) * | 1968-02-08 | 1971-11-10 | Siemens Ag | Production of homogeneous ion exchanger membranes |
| US3719738A (en) * | 1968-05-08 | 1973-03-06 | Ash Kasei Kogyo Kk | Method for producing composite fibers of acrylonitrile type |
| US3607977A (en) * | 1968-09-12 | 1971-09-21 | Shell Oil Co | Block copolymer compositions exhibiting altered surface activity |
| US3652724A (en) * | 1969-02-27 | 1972-03-28 | Sumitomo Chemical Co | Process for producing block copolymers |
| US3675391A (en) * | 1969-05-01 | 1972-07-11 | American Cyanamid Co | Breathable waterproof fabric |
| US3616386A (en) * | 1969-08-08 | 1971-10-26 | Purity Electrochemical Co | Electrodialytic demineralization of whey using neutral membranes |
| US3786116A (en) * | 1972-08-21 | 1974-01-15 | Cpc International Inc | Chemically joined,phase separated thermoplastic graft copolymers |
-
1972
- 1972-09-21 US US290850A patent/US3901810A/en not_active Expired - Lifetime
-
1973
- 1973-09-06 NL NL7312294A patent/NL7312294A/xx not_active Application Discontinuation
- 1973-09-11 IL IL43199A patent/IL43199A/en unknown
- 1973-09-11 AU AU60199/73A patent/AU471865B2/en not_active Expired
- 1973-09-13 CA CA181,037A patent/CA1014315A/en not_active Expired
- 1973-09-17 GB GB4353373A patent/GB1451621A/en not_active Expired
- 1973-09-19 FR FR7333567A patent/FR2200035B1/fr not_active Expired
- 1973-09-20 BE BE135855A patent/BE805095A/xx unknown
- 1973-09-20 DE DE19732347448 patent/DE2347448A1/de active Pending
- 1973-09-21 JP JP48106072A patent/JPS4971076A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU471865B2 (en) | 1976-05-06 |
| GB1451621A (en) | 1976-10-06 |
| IL43199A0 (en) | 1973-11-28 |
| DE2347448A1 (de) | 1974-04-11 |
| CA1014315A (en) | 1977-07-26 |
| JPS4971076A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-09 |
| FR2200035A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-04-19 |
| US3901810A (en) | 1975-08-26 |
| BE805095A (fr) | 1974-03-20 |
| FR2200035B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-09-08 |
| NL7312294A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-03-25 |
| AU6019973A (en) | 1975-03-13 |
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