JPH0468011B2 - - Google Patents

Info

Publication number: JPH0468011B2
Authority: JP; Japan
Prior art keywords: membrane; polytetrafluoroethylene resin; fiber; present; average pore
Prior art date: 1987-07-30
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 - Lifetime

Application number

JP62193323A

Other languages

English (en)

Japanese (ja)

Other versions

JPS6434408A (en

Inventor

Takashi Kawai

Tomoko Katsu

Toshio Yoshioka

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Toray Industries Inc

Original Assignee

Toray Industries Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-07-30

Filing date

1987-07-30

Publication date

1992-10-30

1987-07-30 Application filed by Toray Industries Inc filed Critical Toray Industries Inc

1987-07-30 Priority to JP19332387A priority Critical patent/JPS6434408A/ja

1988-07-28 Priority to EP88906883A priority patent/EP0343247B1/de

1988-07-28 Priority to DE8888906883T priority patent/DE3878899T2/de

1988-07-28 Priority to PCT/JP1988/000755 priority patent/WO1989000879A1/ja

1989-02-03 Publication of JPS6434408A publication Critical patent/JPS6434408A/ja

1989-05-30 Priority to US07/358,205 priority patent/US5158680A/en

1992-07-24 Priority to US07/918,060 priority patent/US5286324A/en

1992-10-30 Publication of JPH0468011B2 publication Critical patent/JPH0468011B2/ja

Status Granted legal-status Critical Current

Links

239000012528 membrane Substances 0.000 claims description 85
239000011148 porous material Substances 0.000 claims description 41
229920005989 resin Polymers 0.000 claims description 38
239000011347 resin Substances 0.000 claims description 38
-1 polytetrafluoroethylene Polymers 0.000 claims description 35
229920001343 polytetrafluoroethylene Polymers 0.000 claims description 32
239000004810 polytetrafluoroethylene Substances 0.000 claims description 32
229920000642 polymer Polymers 0.000 claims description 20
239000000654 additive Substances 0.000 claims description 12
239000006185 dispersion Substances 0.000 claims description 10
230000000996 additive effect Effects 0.000 claims description 7
239000008240 homogeneous mixture Substances 0.000 claims description 7
239000002245 particle Substances 0.000 claims description 6
238000004519 manufacturing process Methods 0.000 claims description 5
238000002844 melting Methods 0.000 claims description 5
230000008018 melting Effects 0.000 claims description 5
239000007788 liquid Substances 0.000 description 21
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
239000000203 mixture Substances 0.000 description 19
239000012510 hollow fiber Substances 0.000 description 18
238000000465 moulding Methods 0.000 description 16
230000035699 permeability Effects 0.000 description 13
230000001112 coagulating effect Effects 0.000 description 12
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
238000000034 method Methods 0.000 description 10
238000000926 separation method Methods 0.000 description 9
239000011550 stock solution Substances 0.000 description 9
238000010438 heat treatment Methods 0.000 description 8
239000000835 fiber Substances 0.000 description 7
108010088751 Albumins Proteins 0.000 description 6
102000009027 Albumins Human genes 0.000 description 6
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
239000007864 aqueous solution Substances 0.000 description 6
238000001878 scanning electron micrograph Methods 0.000 description 6
229920002545 silicone oil Polymers 0.000 description 6
239000000126 substance Substances 0.000 description 6
239000002253 acid Substances 0.000 description 5
229910000019 calcium carbonate Inorganic materials 0.000 description 5
239000000243 solution Substances 0.000 description 5
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
230000000694 effects Effects 0.000 description 4
239000012530 fluid Substances 0.000 description 4
239000007789 gas Substances 0.000 description 4
239000011521 glass Substances 0.000 description 4
239000000661 sodium alginate Substances 0.000 description 4
235000010413 sodium alginate Nutrition 0.000 description 4
229940005550 sodium alginate Drugs 0.000 description 4
239000002904 solvent Substances 0.000 description 4
238000009987 spinning Methods 0.000 description 4
239000004094 surface-active agent Substances 0.000 description 4
IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 3
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
239000003513 alkali Substances 0.000 description 3
239000001110 calcium chloride Substances 0.000 description 3
229910001628 calcium chloride Inorganic materials 0.000 description 3
238000005345 coagulation Methods 0.000 description 3
230000015271 coagulation Effects 0.000 description 3
229920001577 copolymer Polymers 0.000 description 3
238000001125 extrusion Methods 0.000 description 3
238000002156 mixing Methods 0.000 description 3
229910017604 nitric acid Inorganic materials 0.000 description 3
239000000843 powder Substances 0.000 description 3
238000000746 purification Methods 0.000 description 3
238000005096 rolling process Methods 0.000 description 3
NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
239000002202 Polyethylene glycol Substances 0.000 description 2
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
150000007513 acids Chemical class 0.000 description 2
238000011001 backwashing Methods 0.000 description 2
230000005540 biological transmission Effects 0.000 description 2
239000011248 coating agent Substances 0.000 description 2
238000000576 coating method Methods 0.000 description 2
239000002131 composite material Substances 0.000 description 2
238000010612 desalination reaction Methods 0.000 description 2
150000002148 esters Chemical class 0.000 description 2
238000005194 fractionation Methods 0.000 description 2
235000011187 glycerol Nutrition 0.000 description 2
239000010842 industrial wastewater Substances 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
229910052757 nitrogen Inorganic materials 0.000 description 2
239000003921 oil Substances 0.000 description 2
VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
229920002492 poly(sulfone) Polymers 0.000 description 2
229920001223 polyethylene glycol Polymers 0.000 description 2
239000007787 solid Substances 0.000 description 2
BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
229910000368 zinc sulfate Inorganic materials 0.000 description 2
229960001763 zinc sulfate Drugs 0.000 description 2
HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 1
239000005995 Aluminium silicate Substances 0.000 description 1
108091003079 Bovine Serum Albumin Proteins 0.000 description 1
235000010469 Glycine max Nutrition 0.000 description 1
244000068988 Glycine max Species 0.000 description 1
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
239000005909 Kieselgur Substances 0.000 description 1
229910002651 NO3 Inorganic materials 0.000 description 1
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
239000002033 PVDF binder Substances 0.000 description 1
239000004952 Polyamide Substances 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
239000004743 Polypropylene Substances 0.000 description 1
239000004372 Polyvinyl alcohol Substances 0.000 description 1
229920001131 Pulp (paper) Polymers 0.000 description 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 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
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
235000012211 aluminium silicate Nutrition 0.000 description 1
DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
235000019270 ammonium chloride Nutrition 0.000 description 1
BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
229910052921 ammonium sulfate Inorganic materials 0.000 description 1
235000011130 ammonium sulphate Nutrition 0.000 description 1
239000002518 antifoaming agent Substances 0.000 description 1
239000012736 aqueous medium Substances 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
230000001580 bacterial effect Effects 0.000 description 1
239000002585 base Substances 0.000 description 1
239000012503 blood component Substances 0.000 description 1
KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
239000004327 boric acid Substances 0.000 description 1
229940098773 bovine serum albumin Drugs 0.000 description 1
239000000378 calcium silicate Substances 0.000 description 1
229910052918 calcium silicate Inorganic materials 0.000 description 1
OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
150000004649 carbonic acid derivatives Chemical class 0.000 description 1
238000005266 casting Methods 0.000 description 1
239000001913 cellulose Substances 0.000 description 1
229920002678 cellulose Polymers 0.000 description 1
229920002301 cellulose acetate Polymers 0.000 description 1
239000003153 chemical reaction reagent Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
239000004927 clay Substances 0.000 description 1
238000004581 coalescence Methods 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
239000000306 component Substances 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
229910000365 copper sulfate Inorganic materials 0.000 description 1
ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
238000005238 degreasing Methods 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
238000011549 displacement method Methods 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
238000011978 dissolution method Methods 0.000 description 1
238000004070 electrodeposition Methods 0.000 description 1
239000000839 emulsion Substances 0.000 description 1
238000007720 emulsion polymerization reaction Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
238000000605 extraction Methods 0.000 description 1
238000000855 fermentation Methods 0.000 description 1
230000004151 fermentation Effects 0.000 description 1
238000001914 filtration Methods 0.000 description 1
235000013305 food Nutrition 0.000 description 1
235000015203 fruit juice Nutrition 0.000 description 1
239000001307 helium Substances 0.000 description 1
229910052734 helium Inorganic materials 0.000 description 1
SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
PGFXOWRDDHCDTE-UHFFFAOYSA-N hexafluoropropylene oxide Chemical compound FC(F)(F)C1(F)OC1(F)F PGFXOWRDDHCDTE-UHFFFAOYSA-N 0.000 description 1
229920001519 homopolymer Polymers 0.000 description 1
150000003840 hydrochlorides Chemical class 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
230000005764 inhibitory process Effects 0.000 description 1
238000002955 isolation Methods 0.000 description 1
NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
210000003734 kidney Anatomy 0.000 description 1
229940057995 liquid paraffin Drugs 0.000 description 1
239000010687 lubricating oil Substances 0.000 description 1
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
239000001095 magnesium carbonate Substances 0.000 description 1
229910000021 magnesium carbonate Inorganic materials 0.000 description 1
229910001629 magnesium chloride Inorganic materials 0.000 description 1
239000000395 magnesium oxide Substances 0.000 description 1
CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
229910052943 magnesium sulfate Inorganic materials 0.000 description 1
235000019341 magnesium sulphate Nutrition 0.000 description 1
AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
229910044991 metal oxide Inorganic materials 0.000 description 1
150000004706 metal oxides Chemical class 0.000 description 1
238000001471 micro-filtration Methods 0.000 description 1
239000011259 mixed solution Substances 0.000 description 1
BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical class OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 1
230000003287 optical effect Effects 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
150000003021 phthalic acid derivatives Chemical class 0.000 description 1
229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
229920002239 polyacrylonitrile Polymers 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
239000004926 polymethyl methacrylate Substances 0.000 description 1
229920000098 polyolefin Polymers 0.000 description 1
229920001155 polypropylene Polymers 0.000 description 1
229920001296 polysiloxane Polymers 0.000 description 1
229920002451 polyvinyl alcohol Polymers 0.000 description 1
229920000915 polyvinyl chloride Polymers 0.000 description 1
239000004800 polyvinyl chloride Substances 0.000 description 1
229920002620 polyvinyl fluoride Polymers 0.000 description 1
229920002981 polyvinylidene fluoride Polymers 0.000 description 1
CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
229910001950 potassium oxide Inorganic materials 0.000 description 1
OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
229910052939 potassium sulfate Inorganic materials 0.000 description 1
235000011151 potassium sulphates Nutrition 0.000 description 1
238000003825 pressing Methods 0.000 description 1
239000008213 purified water Substances 0.000 description 1
230000005855 radiation Effects 0.000 description 1
238000003608 radiolysis reaction Methods 0.000 description 1
238000001223 reverse osmosis Methods 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000013535 sea water Substances 0.000 description 1
150000003329 sebacic acid derivatives Chemical class 0.000 description 1
150000004760 silicates Chemical class 0.000 description 1
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
235000012239 silicon dioxide Nutrition 0.000 description 1
239000011780 sodium chloride Substances 0.000 description 1
RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 description 1
229910052938 sodium sulfate Inorganic materials 0.000 description 1
235000011152 sodium sulphate Nutrition 0.000 description 1
PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 description 1
238000007711 solidification Methods 0.000 description 1
230000008023 solidification Effects 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
238000005979 thermal decomposition reaction Methods 0.000 description 1
125000005590 trimellitic acid group Chemical class 0.000 description 1
229910021642 ultra pure water Inorganic materials 0.000 description 1
238000000108 ultra-filtration Methods 0.000 description 1
239000012498 ultrapure water Substances 0.000 description 1
235000015192 vegetable juice Nutrition 0.000 description 1
239000002699 waste material Substances 0.000 description 1
238000004065 wastewater treatment Methods 0.000 description 1
239000000080 wetting agent Substances 0.000 description 1
239000011592 zinc chloride Substances 0.000 description 1
235000005074 zinc chloride Nutrition 0.000 description 1

Landscapes

Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Separation Using Semi-Permeable Membranes (AREA)

JP19332387A 1987-07-30 1987-07-30 Porous membrane of polytetrafluoroethylene-base resin and production thereof Granted JPS6434408A (en)

Priority Applications (6)

Application Number	Priority Date	Filing Date	Title
JP19332387A JPS6434408A (en)	1987-07-30	1987-07-30	Porous membrane of polytetrafluoroethylene-base resin and production thereof
EP88906883A EP0343247B1 (de)	1987-07-30	1988-07-28	Poröse polytetrafluoräthylen-membran, trennvorrichtung unter verwendung dieser membran sowie verfahren zur herstellung
DE8888906883T DE3878899T2 (de)	1987-07-30	1988-07-28	Poroese polytetrafluoraethylen-membran, trennvorrichtung unter verwendung dieser membran sowie verfahren zur herstellung.
PCT/JP1988/000755 WO1989000879A1 (en)	1987-07-30	1988-07-28	Porous polymetrafluoroethylene membrane, separating apparatus using same, and process for their production
US07/358,205 US5158680A (en)	1987-07-30	1989-05-30	Polytetrafluoroethylene resin porous membrane, separator making use of the porous membrane and methods of producing the porous membrane and the separator
US07/918,060 US5286324A (en)	1987-07-30	1992-07-24	Polytetrafluoroethylene resin porous membrane, separator making use of the porous membrane and methods of producing the porous membrane and the separator

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP19332387A JPS6434408A (en)	1987-07-30	1987-07-30	Porous membrane of polytetrafluoroethylene-base resin and production thereof

Publications (2)

Publication Number	Publication Date
JPS6434408A JPS6434408A (en)	1989-02-03
JPH0468011B2 true JPH0468011B2 (de)	1992-10-30

Family

ID=16305994

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP19332387A Granted JPS6434408A (en)	1987-07-30	1987-07-30	Porous membrane of polytetrafluoroethylene-base resin and production thereof

Country Status (1)

Country	Link
JP (1)	JPS6434408A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH02284633A (ja) *	1989-04-25	1990-11-22	Toray Ind Inc	ポリテトラフルオロエチレン系樹脂多孔膜の製法
TW438679B (en) *	1996-08-09	2001-06-07	Daikin Ind Ltd	Filter medium and air filter unit using the same
MX2008001671A (es)	2005-08-03	2008-02-19	Donaldson Co Inc	Membrana microporosa para destilacion instantanea.
JP5560005B2 (ja) *	2009-08-06	2014-07-23	野村ユニソン株式会社	脱気用中空糸膜
JP2019172909A (ja) *	2018-03-29	2019-10-10	日本ゼオン株式会社	膜状成形体の製造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4923183A (de) *	1972-05-17	1974-03-01
JPS5140902A (ja) *	1974-10-04	1976-04-06	Fujitsu Ltd	Jikikirokubaitainohogomaku
JPS5342794A (en) *	1976-09-29	1978-04-18	Sumitomo Metal Ind Ltd	Magnetic defectoscope for internal wall defect
JPS5378269A (en) *	1976-12-20	1978-07-11	Ici Ltd	Production of porous polytetrafluoroethylene article
JPS54145379A (en) *	1978-05-02	1979-11-13	Asahi Chem Ind Co Ltd	Aromatic polysulfone hollow fiber semipermeable membrane
JPS56159128A (en) *	1980-05-15	1981-12-08	Asahi Chem Ind Co Ltd	Thermoplastic resin porous film and production thereof
JPS59178228A (ja) *	1983-03-28	1984-10-09	Sumitomo Electric Ind Ltd	四弗化エチレン樹脂多孔質体の製造方法及び製造装置
JPS63248405A (ja) *	1986-05-30	1988-10-14	Mitsubishi Rayon Co Ltd	多孔質膜

1987
- 1987-07-30 JP JP19332387A patent/JPS6434408A/ja active Granted

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4923183A (de) *	1972-05-17	1974-03-01
JPS5140902A (ja) *	1974-10-04	1976-04-06	Fujitsu Ltd	Jikikirokubaitainohogomaku
JPS5342794A (en) *	1976-09-29	1978-04-18	Sumitomo Metal Ind Ltd	Magnetic defectoscope for internal wall defect
JPS5378269A (en) *	1976-12-20	1978-07-11	Ici Ltd	Production of porous polytetrafluoroethylene article
JPS54145379A (en) *	1978-05-02	1979-11-13	Asahi Chem Ind Co Ltd	Aromatic polysulfone hollow fiber semipermeable membrane
JPS56159128A (en) *	1980-05-15	1981-12-08	Asahi Chem Ind Co Ltd	Thermoplastic resin porous film and production thereof
JPS59178228A (ja) *	1983-03-28	1984-10-09	Sumitomo Electric Ind Ltd	四弗化エチレン樹脂多孔質体の製造方法及び製造装置
JPS63248405A (ja) *	1986-05-30	1988-10-14	Mitsubishi Rayon Co Ltd	多孔質膜

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Publication number	Publication date
JPS6434408A (en)	1989-02-03

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Date	Code	Title	Description
2005-10-30	LAPS	Cancellation because of no payment of annual fees

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