CA1107020A - Cellulose acetate hollow fiber and method for making same - Google Patents

Cellulose acetate hollow fiber and method for making same

Info

Publication number: CA1107020A
Authority: CA; Canada
Prior art keywords: fibers; range; fiber; cellulose acetate; coefficient
Prior art date: 1977-07-05
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

Application number

CA306,020A

Other languages

English (en)

French (fr)

Inventor

Michael J. Kell

Robert D. Mahoney

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.)

Althin Medical Inc

Original Assignee

Cordis Dow Corp

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.)

1977-07-05

Filing date

1978-06-22

Publication date

1981-08-18

1978-06-22 Application filed by Cordis Dow Corp filed Critical Cordis Dow Corp

1981-08-18 Application granted granted Critical

1981-08-18 Publication of CA1107020A publication Critical patent/CA1107020A/en

Status Expired legal-status Critical Current

Links

229920002301 cellulose acetate Polymers 0.000 title claims abstract description 52
239000012510 hollow fiber Substances 0.000 title claims abstract description 28
238000000034 method Methods 0.000 title claims abstract description 27
239000000835 fiber Substances 0.000 claims abstract description 139
239000000203 mixture Substances 0.000 claims abstract description 44
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 22
239000004202 carbamide Substances 0.000 claims abstract description 22
230000008569 process Effects 0.000 claims abstract description 22
239000008280 blood Substances 0.000 claims abstract description 21
210000004369 blood Anatomy 0.000 claims abstract description 21
230000035699 permeability Effects 0.000 claims abstract description 17
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 76
235000011187 glycerol Nutrition 0.000 claims description 38
229920001223 polyethylene glycol Polymers 0.000 claims description 15
239000002202 Polyethylene glycol Substances 0.000 claims description 14
DDRJAANPRJIHGJ-UHFFFAOYSA-N creatinine Chemical compound CN1CC(=O)NC1=N DDRJAANPRJIHGJ-UHFFFAOYSA-N 0.000 claims description 14
238000010622 cold drawing Methods 0.000 claims description 12
238000001816 cooling Methods 0.000 claims description 12
238000001631 haemodialysis Methods 0.000 claims description 12
230000000322 hemodialysis Effects 0.000 claims description 12
238000002386 leaching Methods 0.000 claims description 10
229940109239 creatinine Drugs 0.000 claims description 7
238000000108 ultra-filtration Methods 0.000 claims description 7
238000001035 drying Methods 0.000 claims description 6
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
229910052753 mercury Inorganic materials 0.000 claims description 6
FDJOLVPMNUYSCM-UVKKECPRSA-L cobalt(3+);[(2r,3s,4r,5s)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2r)-1-[3-[(2r,3r,4z,7s,9z,12s,13s,14z,17s,18s,19r)-2,13,18-tris(2-amino-2-oxoethyl)-7,12,17-tris(3-amino-3-oxopropyl)-3,5,8,8,13,15,18,19-octamethyl-2,7, Chemical compound [Co+3].N#[C-].C1([C@H](CC(N)=O)[C@@]2(C)CCC(=O)NC[C@@H](C)OP([O-])(=O)O[C@H]3[C@H]([C@H](O[C@@H]3CO)N3C4=CC(C)=C(C)C=C4N=C3)O)[N-]\C2=C(C)/C([C@H](C\2(C)C)CCC(N)=O)=N/C/2=C\C([C@H]([C@@]/2(CC(N)=O)C)CCC(N)=O)=N\C\2=C(C)/C2=N[C@]1(C)[C@@](C)(CC(N)=O)[C@@H]2CCC(N)=O FDJOLVPMNUYSCM-UVKKECPRSA-L 0.000 claims description 3
229940045999 vitamin b 12 Drugs 0.000 claims description 3
239000011872 intimate mixture Substances 0.000 claims description 2
210000003734 kidney Anatomy 0.000 abstract description 27
229920002678 cellulose Polymers 0.000 abstract description 12
239000001913 cellulose Substances 0.000 abstract description 10
238000012545 processing Methods 0.000 abstract description 9
LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 abstract description 4
TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 abstract description 4
239000000470 constituent Substances 0.000 abstract description 4
229940116269 uric acid Drugs 0.000 abstract description 4
CVSVTCORWBXHQV-UHFFFAOYSA-N creatine Chemical compound NC(=[NH2+])N(C)CC([O-])=O CVSVTCORWBXHQV-UHFFFAOYSA-N 0.000 abstract 2
229960003624 creatine Drugs 0.000 abstract 1
239000006046 creatine Substances 0.000 abstract 1
239000012528 membrane Substances 0.000 description 16
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
239000002904 solvent Substances 0.000 description 13
238000012360 testing method Methods 0.000 description 11
238000000502 dialysis Methods 0.000 description 9
239000000243 solution Substances 0.000 description 9
235000010980 cellulose Nutrition 0.000 description 8
239000012530 fluid Substances 0.000 description 7
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 7
238000004519 manufacturing process Methods 0.000 description 6
238000002074 melt spinning Methods 0.000 description 6
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 5
229920003043 Cellulose fiber Polymers 0.000 description 5
239000007789 gas Substances 0.000 description 5
239000007864 aqueous solution Substances 0.000 description 4
230000000694 effects Effects 0.000 description 4
239000000155 melt Substances 0.000 description 4
235000002639 sodium chloride Nutrition 0.000 description 4
HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 4
229920001747 Cellulose diacetate Polymers 0.000 description 3
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
230000007423 decrease Effects 0.000 description 3
230000006870 function Effects 0.000 description 3
150000002500 ions Chemical class 0.000 description 3
239000000463 material Substances 0.000 description 3
238000002156 mixing Methods 0.000 description 3
239000004014 plasticizer Substances 0.000 description 3
229920005862 polyol Polymers 0.000 description 3
150000003077 polyols Chemical class 0.000 description 3
238000010791 quenching Methods 0.000 description 3
238000011160 research Methods 0.000 description 3
239000013535 sea water Substances 0.000 description 3
239000000126 substance Substances 0.000 description 3
IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 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
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
230000008901 benefit Effects 0.000 description 2
238000000578 dry spinning Methods 0.000 description 2
150000002334 glycols Chemical class 0.000 description 2
230000036541 health Effects 0.000 description 2
230000006872 improvement Effects 0.000 description 2
239000007788 liquid Substances 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000012986 modification Methods 0.000 description 2
238000005457 optimization Methods 0.000 description 2
238000005086 pumping Methods 0.000 description 2
230000000171 quenching effect Effects 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
239000011780 sodium chloride Substances 0.000 description 2
239000007787 solid Substances 0.000 description 2
238000007711 solidification Methods 0.000 description 2
230000008023 solidification Effects 0.000 description 2
238000012546 transfer Methods 0.000 description 2
229940045136 urea Drugs 0.000 description 2
239000002699 waste material Substances 0.000 description 2
229920002284 Cellulose triacetate Polymers 0.000 description 1
241000490229 Eucephalus Species 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
241001435619 Lile Species 0.000 description 1
101800000789 Protease-polymerase p70 Proteins 0.000 description 1
101800000786 Protease-polymerase p76 Proteins 0.000 description 1
235000018734 Sambucus australis Nutrition 0.000 description 1
244000180577 Sambucus australis Species 0.000 description 1
208000036366 Sensation of pressure Diseases 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
NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
229920006221 acetate fiber Polymers 0.000 description 1
125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
239000000783 alginic acid Substances 0.000 description 1
230000008859 change Effects 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000010276 construction Methods 0.000 description 1
239000002826 coolant Substances 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
238000011161 development Methods 0.000 description 1
238000010586 diagram Methods 0.000 description 1
201000010099 disease Diseases 0.000 description 1
208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000007654 immersion Methods 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
238000005342 ion exchange Methods 0.000 description 1
230000008407 joint function Effects 0.000 description 1
238000009533 lab test Methods 0.000 description 1
229910052943 magnesium sulfate Inorganic materials 0.000 description 1
235000019341 magnesium sulphate Nutrition 0.000 description 1
238000005259 measurement Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
239000012457 nonaqueous media Substances 0.000 description 1
238000004382 potting Methods 0.000 description 1
239000000843 powder Substances 0.000 description 1
229920003124 powdered cellulose Polymers 0.000 description 1
235000019814 powdered cellulose Nutrition 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
CMDGQTVYVAKDNA-UHFFFAOYSA-N propane-1,2,3-triol;hydrate Chemical compound O.OCC(O)CO CMDGQTVYVAKDNA-UHFFFAOYSA-N 0.000 description 1
230000009467 reduction Effects 0.000 description 1
229910052938 sodium sulfate Inorganic materials 0.000 description 1
235000011152 sodium sulphate Nutrition 0.000 description 1
238000001228 spectrum Methods 0.000 description 1
125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
238000011144 upstream manufacturing Methods 0.000 description 1
238000003466 welding Methods 0.000 description 1
238000004804 winding Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/14—Esters of organic acids
- B01D71/16—Cellulose acetate
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
- B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
- 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
- B01D69/08—Hollow fibre membranes
- 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
- B01D69/08—Hollow fibre membranes
- B01D69/081—Hollow fibre membranes characterised by the fibre diameter
- 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
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/20—Specific permeability or cut-off range

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Textile Engineering (AREA)
Mechanical Engineering (AREA)
General Chemical & Material Sciences (AREA)
Separation Using Semi-Permeable Membranes (AREA)
External Artificial Organs (AREA)
Artificial Filaments (AREA)

CA306,020A 1977-07-05 1978-06-22 Cellulose acetate hollow fiber and method for making same Expired CA1107020A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US81292977A	1977-07-05	1977-07-05
US812,929		1977-07-05

Publications (1)

Publication Number	Publication Date
CA1107020A true CA1107020A (en)	1981-08-18

Family

ID=25211003

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA306,020A Expired CA1107020A (en)	1977-07-05	1978-06-22	Cellulose acetate hollow fiber and method for making same

Country Status (18)

Country	Link
JP (2)	JPS5442420A (da)
AT (1)	AT364899B (da)
AU (1)	AU519458B2 (da)
BE (1)	BE868708A (da)
BR (1)	BR7804325A (da)
CA (1)	CA1107020A (da)
CH (1)	CH632536A5 (da)
DD (1)	DD137950A5 (da)
DE (1)	DE2827100C2 (da)
DK (1)	DK149600C (da)
FR (1)	FR2396780A1 (da)
GB (1)	GB2000722B (da)
IT (1)	IT1107799B (da)
MX (1)	MX153159A (da)
NL (1)	NL7807225A (da)
NO (1)	NO147979C (da)
NZ (1)	NZ187610A (da)
SE (1)	SE428221B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5063009A (en) *	1984-11-16	1991-11-05	Teijin Limited	Process for preparation of hollow fibers for fluid separator construction

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1153171A (en) *	1979-12-17	1983-09-06	David T. Chen	Cellulose semipermeable hollow fibers and method for making same
JPS5949806A (ja) *	1982-09-13	1984-03-22	Teijin Ltd	セルロースエステル系中空糸状分離膜
JPS59199807A (ja) *	1983-04-20	1984-11-13	Teijin Ltd	選択透過性セルロ−スエステル系中空繊維の製造方法
JPS59211459A (ja) *	1983-05-17	1984-11-30	帝人株式会社	血液処理器の滅菌方法
JPS605202A (ja) *	1983-06-21	1985-01-11	Teijin Ltd	多孔性セルロ−スエステル系中空繊維およびその製造方法
JPS6343669A (ja) *	1986-08-08	1988-02-24	帝人株式会社	血液処理器の製造方法
WO2003000966A1 (en)	2001-06-26	2003-01-03	Toray Industries, Inc.	Thermoplastic cellulose derivative composition and fiber comprising the same
WO2013125681A1 (ja) *	2012-02-24	2013-08-29	東洋紡株式会社	中空糸型半透膜及びその製造方法及びモジュール及び水処理方法
US10888822B2 (en) *	2014-09-30	2021-01-12	Toray Industries, Inc.	Separation membrane
DE102020102096B4 (de)	2020-01-29	2023-03-23	Cerdia International GmbH	Celluloseacetathaltiger faserstoff für ein nonwoven-produkt, nonwoven-produkt mit einem solchen faserstoff und verfahren zur herstellung eines solchen faserstoffs
US20230397602A1 (en) *	2020-10-30	2023-12-14	Toyobo Co., Ltd.	Cell cryopreservation hollow fiber membrane

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE342820A (da) *	1925-09-17
US3423491A (en) *	1964-09-02	1969-01-21	Dow Chemical Co	Permselective hollow fibers and method of making
FR1456757A (fr) *	1964-09-02	1966-07-08	Dow Chemical Co	Fibres creuses sélectivement perméables et leur fabrication
US3532527A (en) *	1966-11-04	1970-10-06	Dow Chemical Co	Permeable separatory membranes
US3745202A (en) *	1971-03-17	1973-07-10	Us Interior	Method of preparing an asymmetric membrane from a cellulose derivative
JPS5170316A (ja) *	1974-12-16	1976-06-17	Teijin Ltd	Seruroosuaseteetochukushino seizohoho

1978
- 1978-06-09 AU AU36971/78A patent/AU519458B2/en not_active Expired
- 1978-06-19 NZ NZ187610A patent/NZ187610A/xx unknown
- 1978-06-21 DE DE2827100A patent/DE2827100C2/de not_active Expired
- 1978-06-22 CA CA306,020A patent/CA1107020A/en not_active Expired
- 1978-06-28 FR FR7819383A patent/FR2396780A1/fr active Granted
- 1978-06-30 AT AT0477578A patent/AT364899B/de not_active IP Right Cessation
- 1978-06-30 IT IT50125/78A patent/IT1107799B/it active
- 1978-07-04 SE SE7807516A patent/SE428221B/sv not_active IP Right Cessation
- 1978-07-04 DD DD78206508A patent/DD137950A5/xx unknown
- 1978-07-04 GB GB7828704A patent/GB2000722B/en not_active Expired
- 1978-07-04 NO NO782320A patent/NO147979C/no unknown
- 1978-07-04 DK DK302078A patent/DK149600C/da not_active IP Right Cessation
- 1978-07-04 MX MX174045A patent/MX153159A/es unknown
- 1978-07-04 NL NL7807225A patent/NL7807225A/xx not_active Application Discontinuation
- 1978-07-04 JP JP8138378A patent/JPS5442420A/ja active Pending
- 1978-07-04 CH CH727578A patent/CH632536A5/fr not_active IP Right Cessation
- 1978-07-04 BE BE189048A patent/BE868708A/xx not_active IP Right Cessation
- 1978-07-05 BR BR7804325A patent/BR7804325A/pt unknown
1987
- 1987-02-05 JP JP62025535A patent/JPS62250215A/ja active Granted

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5063009A (en) *	1984-11-16	1991-11-05	Teijin Limited	Process for preparation of hollow fibers for fluid separator construction

Also Published As

Publication number	Publication date
BR7804325A (pt)	1979-04-17
SE428221B (sv)	1983-06-13
NO147979C (no)	1983-07-20
BE868708A (fr)	1979-01-04
GB2000722A (en)	1979-01-17
DK149600C (da)	1987-02-09
JPS6317922B2 (da)	1988-04-15
FR2396780A1 (fr)	1979-02-02
DD137950A5 (de)	1979-10-03
AU519458B2 (en)	1981-12-03
SE7807516L (sv)	1979-01-06
NL7807225A (nl)	1979-01-09
ATA477578A (de)	1981-04-15
IT1107799B (it)	1985-11-25
JPS5442420A (en)	1979-04-04
MX153159A (es)	1986-08-14
FR2396780B1 (da)	1983-02-25
DE2827100A1 (de)	1979-01-25
JPS62250215A (ja)	1987-10-31
NO147979B (no)	1983-04-11
IT7850125A0 (it)	1978-06-30
AT364899B (de)	1981-11-25
DK302078A (da)	1979-01-06
GB2000722B (en)	1982-01-27
AU3697178A (en)	1979-12-13
CH632536A5 (fr)	1982-10-15
DK149600B (da)	1986-08-04
NO782320L (no)	1979-01-08
NZ187610A (en)	1980-09-12
DE2827100C2 (de)	1983-04-28

Legal Events

Date	Code	Title	Description
1998-08-18	MKEX	Expiry

Publication	Publication Date	Title
US4276173A (en)	1981-06-30	Cellulose acetate hollow fiber and method for making same
US4666607A (en)	1987-05-19	Porous shaped bodies, and method and apparatus for the production thereof
US5938929A (en)	1999-08-17	Polysulfone hollow fiber semipermeable membrane
DE3855721T2 (de)	1997-05-15	Poröse polypropylenmembran und verfahren zu deren herstellung
US3930105A (en)	1975-12-30	Hollow fibres
US4234431A (en)	1980-11-18	Membrane filtration type hollow fibers and method for the preparation of same
US4439322A (en)	1984-03-27	Polymethyl methacrylate membrane
EP0504686B1 (en)	1997-06-04	Process for continuous spinning of hollow-fiber membranes using a solvent mixture as a precipitation medium
US4388256A (en)	1983-06-14	Process for manufacturing regenerated cellulose hollow fiber
EP0579749B1 (en)	1996-01-10	Fiber spinning process and product thereof
US7144505B2 (en)	2006-12-05	Melt-spun polysulfone semipermeable membranes and methods for making the same
US4340481A (en)	1982-07-20	Membrane filtration type hollow fibers
US4543221A (en)	1985-09-24	Method for making cellulose semipermeable hollow fibers
US5489382A (en)	1996-02-06	Oxygenator using porous hollow fiber membrane
US4681713A (en)	1987-07-21	Method of making a hollow fiber membrane for dialysis
CA1153171A (en)	1983-09-06	Cellulose semipermeable hollow fibers and method for making same
DE2827100C2 (de)	1983-04-28	Celluloseacetat-Hohlfasern und Verfahren zu ihrer Herstellung
JPH08503413A (ja)	1996-04-16	高流量中空糸膜
CA1184716A (en)	1985-04-02	Plasma phoresis membrane
EP0008536B1 (en)	1984-08-01	Process for manufacturing regenerated cellulose hollow fiber
EP0824960A1 (en)	1998-02-25	Hollow-fiber membrane of polysulfone polymer and process for the production thereof
US4830796A (en)	1989-05-16	Process for preparing a polyester-amide hollow fiber membrane
US4587168A (en)	1986-05-06	Hollow fiber membrane for dialysis
JPS60193504A (ja)	1985-10-02	透析用中空繊維膜
JP2818359B2 (ja)	1998-10-30	セルローストリアセテート中空糸膜の製造方法

CA1107020A - Cellulose acetate hollow fiber and method for making same - Google Patents

Info

Links

Classifications

Landscapes

Applications Claiming Priority (2)

Publications (1)

Family

ID=25211003

Family Applications (1)

Country Status (18)

Cited By (1)

Families Citing this family (11)

Family Cites Families (6)

Cited By (1)

Also Published As

Similar Documents

Legal Events