CH632536A5 - Fibre creuse d'acetate de cellulose et procede pour sa fabrication. - Google Patents

Fibre creuse d'acetate de cellulose et procede pour sa fabrication. Download PDF

Info

Publication number: CH632536A5
Authority: CH; Switzerland
Prior art keywords: fibers; cellulose acetate; coefficient; glycerin; water
Prior art date: 1977-07-05

Application number

CH727578A

Other languages

English (en)

French (fr)

Inventor

Michael J Kell

Robert D Mahoney

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

1978-07-04

Publication date

1982-10-15

1978-07-04 Application filed by Cordis Dow Corp filed Critical Cordis Dow Corp

1982-10-15 Publication of CH632536A5 publication Critical patent/CH632536A5/fr

Links

229920002301 cellulose acetate Polymers 0.000 title claims description 51
239000012510 hollow fiber Substances 0.000 title claims description 23
238000000034 method Methods 0.000 title claims description 17
238000004519 manufacturing process Methods 0.000 title claims description 9
230000008569 process Effects 0.000 title description 11
239000000835 fiber Substances 0.000 claims description 144
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 88
239000000203 mixture Substances 0.000 claims description 49
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
235000011187 glycerol Nutrition 0.000 claims description 44
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 24
239000004202 carbamide Substances 0.000 claims description 21
DDRJAANPRJIHGJ-UHFFFAOYSA-N creatinine Chemical compound CN1CC(=O)NC1=N DDRJAANPRJIHGJ-UHFFFAOYSA-N 0.000 claims description 20
238000010622 cold drawing Methods 0.000 claims description 19
238000001816 cooling Methods 0.000 claims description 17
230000035699 permeability Effects 0.000 claims description 16
238000002386 leaching Methods 0.000 claims description 15
229920001223 polyethylene glycol Polymers 0.000 claims description 15
239000002202 Polyethylene glycol Substances 0.000 claims description 14
239000008280 blood Substances 0.000 claims description 14
210000004369 blood Anatomy 0.000 claims description 14
238000001631 haemodialysis Methods 0.000 claims description 13
230000000322 hemodialysis Effects 0.000 claims description 13
229940109239 creatinine Drugs 0.000 claims description 10
238000000108 ultra-filtration Methods 0.000 claims description 8
230000015572 biosynthetic process Effects 0.000 claims description 7
238000001035 drying Methods 0.000 claims description 6
229930003779 Vitamin B12 Natural products 0.000 claims description 5
239000011715 vitamin B12 Substances 0.000 claims description 5
235000019163 vitamin B12 Nutrition 0.000 claims description 5
239000000155 melt Substances 0.000 claims description 3
FDJOLVPMNUYSCM-WZHZPDAFSA-L cobalt(3+);[(2r,3s,4r,5s)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2r)-1-[3-[(1r,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 Chemical compound [Co+3].N#[C-].N([C@@H]([C@]1(C)[N-]\C([C@H]([C@@]1(CC(N)=O)C)CCC(N)=O)=C(\C)/C1=N/C([C@H]([C@@]1(CC(N)=O)C)CCC(N)=O)=C\C1=N\C([C@H](C1(C)C)CCC(N)=O)=C/1C)[C@@H]2CC(N)=O)=C\1[C@]2(C)CCC(=O)NC[C@@H](C)OP([O-])(=O)O[C@H]1[C@@H](O)[C@@H](N2C3=CC(C)=C(C)C=C3N=C2)O[C@@H]1CO FDJOLVPMNUYSCM-WZHZPDAFSA-L 0.000 claims 1
239000011872 intimate mixture Substances 0.000 claims 1
210000003734 kidney Anatomy 0.000 description 32
239000004014 plasticizer Substances 0.000 description 24
238000009987 spinning Methods 0.000 description 18
239000012528 membrane Substances 0.000 description 16
239000000463 material Substances 0.000 description 14
239000000783 alginic acid Substances 0.000 description 13
239000002904 solvent Substances 0.000 description 13
229920000642 polymer Polymers 0.000 description 12
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
238000012360 testing method Methods 0.000 description 11
239000000243 solution Substances 0.000 description 10
238000000502 dialysis Methods 0.000 description 9
239000000470 constituent Substances 0.000 description 8
239000012530 fluid Substances 0.000 description 8
229920002678 cellulose Polymers 0.000 description 7
229920003043 Cellulose fiber Polymers 0.000 description 6
239000001913 cellulose Substances 0.000 description 5
239000007789 gas Substances 0.000 description 5
238000002074 melt spinning Methods 0.000 description 5
230000004048 modification Effects 0.000 description 5
238000012986 modification Methods 0.000 description 5
238000000926 separation method Methods 0.000 description 5
HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 5
239000007864 aqueous solution Substances 0.000 description 4
235000010980 cellulose Nutrition 0.000 description 4
AGVAZMGAQJOSFJ-WZHZPDAFSA-M cobalt(2+);[(2r,3s,4r,5s)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2r)-1-[3-[(1r,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 Chemical compound [Co+2].N#[C-].[N-]([C@@H]1[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)\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 AGVAZMGAQJOSFJ-WZHZPDAFSA-M 0.000 description 4
230000000875 corresponding effect Effects 0.000 description 4
230000007423 decrease Effects 0.000 description 4
230000000694 effects Effects 0.000 description 4
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
238000002156 mixing Methods 0.000 description 4
238000012545 processing Methods 0.000 description 4
235000002639 sodium chloride Nutrition 0.000 description 4
239000000126 substance Substances 0.000 description 4
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 3
TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 3
238000000578 dry spinning Methods 0.000 description 3
150000002334 glycols Chemical class 0.000 description 3
239000007788 liquid Substances 0.000 description 3
229920005862 polyol Polymers 0.000 description 3
150000003077 polyols Chemical class 0.000 description 3
238000011160 research Methods 0.000 description 3
238000005070 sampling Methods 0.000 description 3
239000013535 sea water Substances 0.000 description 3
229940116269 uric acid Drugs 0.000 description 3
238000004804 winding Methods 0.000 description 3
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
229920001747 Cellulose diacetate Polymers 0.000 description 2
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
230000001427 coherent effect Effects 0.000 description 2
238000010612 desalination reaction Methods 0.000 description 2
238000010586 diagram Methods 0.000 description 2
230000036541 health Effects 0.000 description 2
239000012768 molten material Substances 0.000 description 2
238000005086 pumping Methods 0.000 description 2
238000000746 purification Methods 0.000 description 2
230000009467 reduction Effects 0.000 description 2
230000001105 regulatory 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
238000001228 spectrum Methods 0.000 description 2
238000012546 transfer Methods 0.000 description 2
ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 2
ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
229940045136 urea Drugs 0.000 description 2
238000003466 welding Methods 0.000 description 2
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-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
150000001242 acetic acid derivatives Chemical class 0.000 description 1
125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
238000004026 adhesive bonding Methods 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
230000033228 biological regulation Effects 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000007547 defect Effects 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
201000010099 disease Diseases 0.000 description 1
208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
229920006240 drawn fiber Polymers 0.000 description 1
150000002148 esters Chemical class 0.000 description 1
238000000605 extraction Methods 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000009472 formulation Methods 0.000 description 1
238000001879 gelation Methods 0.000 description 1
-1 glycols Chemical class 0.000 description 1
238000007654 immersion Methods 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000010348 incorporation Methods 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
238000005342 ion exchange Methods 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
238000005457 optimization 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
BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
229910052938 sodium sulfate Inorganic materials 0.000 description 1
235000011152 sodium sulphate Nutrition 0.000 description 1
238000011144 upstream manufacturing Methods 0.000 description 1
229930003231 vitamin Natural products 0.000 description 1
235000013343 vitamin Nutrition 0.000 description 1
239000011782 vitamin Substances 0.000 description 1
229940088594 vitamin Drugs 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)

CH727578A 1977-07-05 1978-07-04 Fibre creuse d'acetate de cellulose et procede pour sa fabrication. CH632536A5 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US81292977A	1977-07-05	1977-07-05

Publications (1)

Publication Number	Publication Date
CH632536A5 true CH632536A5 (fr)	1982-10-15

Family

ID=25211003

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH727578A CH632536A5 (fr)	1977-07-05	1978-07-04	Fibre creuse d'acetate de cellulose et procede pour sa fabrication.

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)

Families Citing this family (12)

* 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
CA1272139A (en) *	1984-11-16	1990-07-31	Shoji Mizutani	Fluid separator, hollow fiber to be used for construction thereof and process for preparation of said hollow fibers
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

Also Published As

Publication number	Publication date
BR7804325A (pt)	1979-04-17
SE428221B (sv)	1983-06-13
CA1107020A (en)	1981-08-18
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
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
1986-01-15	PFA	Name/firm changed	Owner name: CD MEDICAL, INC.
1992-03-31	PL	Patent ceased
2024-10-31	PL	Patent ceased

Publication	Publication Date	Title
EP0436447B1 (fr)	1994-06-01	Membrane semi-perméable asymétrique pour le traitement des liquides biologiques
US4276173A (en)	1981-06-30	Cellulose acetate hollow fiber and method for making same
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JP6465234B2 (ja)	2019-02-06	中空糸膜モジュール、中空糸膜の製造方法および中空糸膜モジュールの製造方法
FR2485943A1 (fr)	1982-01-08	Membranes pour la microfiltration, l'ultrafiltration ou la dialyse, a base de copolymeres de methacrylate de methyle
FR2600265A1 (fr)	1987-12-24	Membranes semi-permeables sechables et hydrophiles a base de polyfluorure de vinylidene
FR2521572A1 (fr)	1983-08-19	Procede de fabrication de corps poreux ayant un volume total de pores reglable, une dimension de pores reglable et une paroi de pores reglable
US4980063A (en)	1990-12-25	Compositions useful for preparing cellulose ester membranes for liquid separations
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JP3392141B2 (ja)	2003-03-31	高流量中空糸膜
FR2473340A1 (fr)	1981-07-17	Fibre cellulosique creuse semi-permeable, son procede de production et son application a l'hemodialyse et a l'hemofiltration
JPS6317922B2 (da)	1988-04-15
FR2499866A1 (fr)	1982-08-20	Membrane cellulosique microporeuse, son procede de preparation d'une membrane d'hydrate de cellulose regeneree, a partir de solutions de cuoxame-cellulose contenant du polyethyleneglycol; et son utilisation en micro-filtration et plasmophorese
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JPH0278425A (ja)	1990-03-19	ポリ弗化ビニリデンに基づく親水性かつ乾燥性の半透膜
EP0100285B1 (fr)	1986-09-03	Fibre creuse pour le traitement du sang
GB1565113A (en)	1980-04-16	Semipermeable membranes and method for producing same
WO2022231002A1 (ja)	2022-11-03	中空糸膜およびその製造方法
FR2476500A1 (fr)	1981-08-28	Membrane pour la plasmaphorese, son procede de fabrication et sa constitution
FR2490231A1 (fr)	1982-03-19	Composition liquide pour la preparation d'une membrane, procede de fabrication de cette membrane et membrane ainsi obtenue
JP4055634B2 (ja)	2008-03-05	血液透析膜およびその製造方法
JPS59166208A (ja)	1984-09-19	気体分離膜の製造法
WO2020175375A1 (ja)	2020-09-03	中空糸膜、中空糸膜の製造方法、中空糸膜モジュール、膜分離装置および膜分離方法
JPS6411322B2 (da)	1989-02-23
JPH02187133A (ja)	1990-07-23	セルロース系中空系およびその製造方法