JPS6255881B2 - - Google Patents
Info
- Publication number
- JPS6255881B2 JPS6255881B2 JP57004763A JP476382A JPS6255881B2 JP S6255881 B2 JPS6255881 B2 JP S6255881B2 JP 57004763 A JP57004763 A JP 57004763A JP 476382 A JP476382 A JP 476382A JP S6255881 B2 JPS6255881 B2 JP S6255881B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- hydrogel
- polymer
- support
- reverse osmosis
- 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
Links
- 229920000642 polymer Polymers 0.000 claims description 177
- 239000000017 hydrogel Substances 0.000 claims description 132
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 126
- 239000012528 membrane Substances 0.000 claims description 114
- 239000002904 solvent Substances 0.000 claims description 61
- 238000001223 reverse osmosis Methods 0.000 claims description 52
- 239000011148 porous material Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 14
- 239000004593 Epoxy Substances 0.000 claims description 13
- 238000004132 cross linking Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 239000007800 oxidant agent Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 229920001290 polyvinyl ester Polymers 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 230000002411 adverse Effects 0.000 claims description 5
- 239000000645 desinfectant Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 4
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 267
- 239000000243 solution Substances 0.000 description 85
- 238000006243 chemical reaction Methods 0.000 description 13
- 229920002125 Sokalan® Polymers 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 10
- 238000012546 transfer Methods 0.000 description 10
- 239000000499 gel Substances 0.000 description 9
- 244000005700 microbiome Species 0.000 description 9
- 102000004190 Enzymes Human genes 0.000 description 8
- 108090000790 Enzymes Proteins 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 239000004584 polyacrylic acid Substances 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000005204 segregation Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000416 hydrocolloid Substances 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 229920002492 poly(sulfone) Polymers 0.000 description 5
- 239000004034 viscosity adjusting agent Substances 0.000 description 5
- -1 aliphatic alcohols Chemical class 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 125000002843 carboxylic acid group Chemical group 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920002689 polyvinyl acetate Polymers 0.000 description 3
- 239000011118 polyvinyl acetate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920003319 Araldite® Polymers 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 239000000783 alginic acid Substances 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 229960001126 alginic acid Drugs 0.000 description 2
- 150000004781 alginic acids Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- JYVLIDXNZAXMDK-UHFFFAOYSA-N pentan-2-ol Chemical compound CCCC(C)O JYVLIDXNZAXMDK-UHFFFAOYSA-N 0.000 description 2
- 229920006287 phenoxy resin Polymers 0.000 description 2
- 239000013034 phenoxy resin Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011877 solvent mixture Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- KRZRNXHQZJZPPZ-UHFFFAOYSA-N benzoyl(trimethyl)azanium Chemical compound C[N+](C)(C)C(=O)C1=CC=CC=C1 KRZRNXHQZJZPPZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- GHWVXCQZPNWFRO-UHFFFAOYSA-N butane-2,3-diamine Chemical compound CC(N)C(C)N GHWVXCQZPNWFRO-UHFFFAOYSA-N 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 150000003511 tertiary amides Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22534881A | 1981-01-15 | 1981-01-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57136907A JPS57136907A (en) | 1982-08-24 |
| JPS6255881B2 true JPS6255881B2 (enExample) | 1987-11-21 |
Family
ID=22844519
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57004763A Granted JPS57136907A (en) | 1981-01-15 | 1982-01-14 | Reverse osmosis membrane and its manufacture |
| JP61252813A Pending JPS62163704A (ja) | 1981-01-15 | 1986-10-22 | 逆浸透膜およびその製造法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61252813A Pending JPS62163704A (ja) | 1981-01-15 | 1986-10-22 | 逆浸透膜およびその製造法 |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0056512A1 (enExample) |
| JP (2) | JPS57136907A (enExample) |
| AU (1) | AU7579581A (enExample) |
| BR (1) | BR8107449A (enExample) |
| CA (1) | CA1182959A (enExample) |
| IL (1) | IL63997A0 (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0174918A1 (en) * | 1984-08-13 | 1986-03-19 | Monsanto Company | Composite gas separation membranes |
| US4806189A (en) * | 1984-08-13 | 1989-02-21 | Monsanto Company | Composite fluid separation membranes |
| EP0181850A1 (en) * | 1984-08-13 | 1986-05-21 | Monsanto Company | Composite fluid separation membranes |
| EP0247596B1 (en) * | 1986-05-30 | 1992-08-12 | Mitsubishi Rayon Co., Ltd. | Porous membrane |
| GB2224668A (en) * | 1988-11-09 | 1990-05-16 | Domnick Hunter Filters Ltd | Filter |
| GB8902799D0 (en) * | 1989-02-08 | 1989-03-30 | Isis Innovation | Composite membranes and method of making the same |
| JP2014508640A (ja) * | 2011-02-16 | 2014-04-10 | ダウ コーニング コーポレーション | 多孔質基材のコーティング方法 |
| JP2015110194A (ja) * | 2012-03-23 | 2015-06-18 | テルモ株式会社 | 選択透過膜及びその製造方法 |
| US20160243503A1 (en) * | 2013-09-30 | 2016-08-25 | Toray Industries, Inc. | Composite semipermeable membrane and method for manufacturing same |
| JP6644140B2 (ja) * | 2015-10-22 | 2020-02-12 | ユーオーピー エルエルシー | ガス分離のための二重層コーティングされた膜 |
| WO2017091645A1 (en) * | 2015-11-24 | 2017-06-01 | Oasys Water, Inc. | Support layers for forward osmosis membranes |
| KR20200090253A (ko) * | 2017-12-27 | 2020-07-28 | 주식회사 쿠라레 | 복합 중공사막, 및 복합 중공사막의 제조 방법 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE339977C (de) * | 1919-05-24 | 1921-08-25 | Georg A Krause | Verfahren zur Herstellung von Ultrafiltern |
| US3556992A (en) * | 1969-07-22 | 1971-01-19 | Amicon Corp | Anisotropic ultrafiltration membrane having adhering coating and methods of forming and using this membrane |
| DE2165073A1 (de) * | 1971-12-28 | 1973-07-12 | Sartorius Membranfilter Gmbh | Mehrschichten-filtermembrane, verfahren zu deren herstellung und deren verwendung |
| US4039440A (en) * | 1972-09-19 | 1977-08-02 | The United States Of America As Represented By The Secretary Of The Interior | Reverse osmosis membrane |
| GB2064367B (en) * | 1979-12-04 | 1984-02-29 | Toray Industries | Semi-permeable composite membrane |
-
1981
- 1981-09-28 CA CA000386782A patent/CA1182959A/en not_active Expired
- 1981-09-30 AU AU75795/81A patent/AU7579581A/en not_active Abandoned
- 1981-10-05 IL IL63997A patent/IL63997A0/xx unknown
- 1981-10-05 EP EP81304608A patent/EP0056512A1/en not_active Ceased
- 1981-11-17 BR BR8107449A patent/BR8107449A/pt unknown
-
1982
- 1982-01-14 JP JP57004763A patent/JPS57136907A/ja active Granted
-
1986
- 1986-10-22 JP JP61252813A patent/JPS62163704A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU7579581A (en) | 1982-07-22 |
| JPS57136907A (en) | 1982-08-24 |
| JPS62163704A (ja) | 1987-07-20 |
| EP0056512A1 (en) | 1982-07-28 |
| IL63997A0 (en) | 1982-01-31 |
| BR8107449A (pt) | 1982-08-10 |
| CA1182959A (en) | 1985-02-26 |
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