IT1105155B - Membrana di cellulosa per emodialisi e procedimento per la sua produzione - Google Patents

Membrana di cellulosa per emodialisi e procedimento per la sua produzione

Info

Publication number
IT1105155B
IT1105155B IT47840/78A IT4784078A IT1105155B IT 1105155 B IT1105155 B IT 1105155B IT 47840/78 A IT47840/78 A IT 47840/78A IT 4784078 A IT4784078 A IT 4784078A IT 1105155 B IT1105155 B IT 1105155B
Authority
IT
Italy
Prior art keywords
hemodialysis
procedure
production
cellulose membrane
cellulose
Prior art date
Application number
IT47840/78A
Other languages
English (en)
Other versions
IT7847840A0 (it
Original Assignee
Akzo Nv
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.)
Filing date
Publication date
Priority claimed from DE2705733A external-priority patent/DE2705733C2/de
Priority claimed from DE2705735A external-priority patent/DE2705735C3/de
Application filed by Akzo Nv filed Critical Akzo Nv
Publication of IT7847840A0 publication Critical patent/IT7847840A0/it
Application granted granted Critical
Publication of IT1105155B publication Critical patent/IT1105155B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B01D69/04—Tubular 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
    • B01D69/085—Details relating to the spinneret
    • 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
    • B01D69/088—Co-extrusion; Co-spinning
    • 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
    • B01D69/1212—Coextruded layers
    • 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
    • B01D69/1213—Laminated layers
    • 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
    • B01D69/1216—Three or more layers
    • 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
    • B01D71/10—Cellulose; Modified cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/18—Cellulose, modified cellulose or cellulose derivatives, e.g. viscose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2535/00—Medical equipment, e.g. bandage, prostheses or catheter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)
IT47840/78A 1977-02-11 1978-01-30 Membrana di cellulosa per emodialisi e procedimento per la sua produzione IT1105155B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2705733A DE2705733C2 (de) 1977-02-11 1977-02-11 Dialysemembran für die Hämodialyse
DE2705735A DE2705735C3 (de) 1977-02-11 1977-02-11 Dialysemembran für die Hämodialyse

Publications (2)

Publication Number Publication Date
IT7847840A0 IT7847840A0 (it) 1978-01-30
IT1105155B true IT1105155B (it) 1985-10-28

Family

ID=25771589

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47840/78A IT1105155B (it) 1977-02-11 1978-01-30 Membrana di cellulosa per emodialisi e procedimento per la sua produzione

Country Status (8)

Country Link
US (1) US4276172A (it)
JP (1) JPS53100698A (it)
AT (1) AT371341B (it)
CS (1) CS220316B2 (it)
DD (1) DD133900A5 (it)
FR (1) FR2380052A1 (it)
GB (1) GB1562069A (it)
IT (1) IT1105155B (it)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU81736A1 (de) * 1978-10-02 1980-01-24 Akzo Nv Dialysehohlfadenmembran mit laengswellen
NL7907214A (nl) * 1978-10-02 1980-06-25 Akzo Nv Dunwandige holle-vezel-membraan voor dialyse.
NL7907212A (nl) * 1978-10-02 1980-04-08 Akzo Nv Holle-vezel-dialysemembraan met verbeterd uitwisselingsoppervlak.
US4645602A (en) * 1981-12-18 1987-02-24 Barnes Jr Robert G Process for producing reinforced microporous membrane
DE3341113A1 (de) * 1983-11-12 1985-05-23 Akzo Gmbh, 5600 Wuppertal Dialysemembran mit verbesserter vertraeglichkeit
EP0155534B1 (de) * 1984-03-20 1988-12-28 Akzo Patente GmbH Dialysemembran aus Cellulose mit verbesserter Biokompatibilität
DE3572771D1 (en) * 1984-08-18 1989-10-12 Akzo Gmbh Modified cellulose dialysis membrane with improved biocompatibility
US4861661A (en) * 1986-06-27 1989-08-29 E. I. Du Pont De Nemours And Company Co-spun filament within a hollow filament and spinneret for production thereof
US4882106A (en) * 1987-02-27 1989-11-21 Baxter Travenol Laboratories, Inc. Methods of manufacturing nucleophilic material modified for improved biocompatibility
US4857081A (en) * 1987-10-15 1989-08-15 Separation Dynamics, Inc. Separation of water from hydrocarbons and halogenated hydrocarbons
DE3814326A1 (de) * 1988-04-28 1989-11-09 Akzo Gmbh Verfahren zur modifizierung von cellulosischen dialysemembranen zur verbesserung der biocompatibilitaet und vorrichtung zur durchfuehrung des verfahrens
US4963265A (en) * 1988-05-06 1990-10-16 Applied Immunesciences, Inc. Plasma processing device with anaphylatoxin remover
US4978451A (en) * 1989-09-05 1990-12-18 Separation Dynamics, Inc. Supported hydrophilic membrane
FR2656234B1 (fr) * 1989-12-22 1992-03-20 Hospal Ind Membrane semi-permeable asymetrique pour le traitement des liquides biologiques.
US5076933A (en) * 1990-06-29 1991-12-31 Coulter Corporation Process and apparatus for removal of dna and viruses
US5221483A (en) * 1990-06-29 1993-06-22 Coulter Corporation Process and apparatus for removal of DNA, viruses and endotoxins
US5256294A (en) * 1990-09-17 1993-10-26 Genentech, Inc. Tangential flow filtration process and apparatus
NL9102151A (nl) * 1991-12-20 1993-07-16 Delair Droogtech & Lucht Het spinnen van asymmetrische holle vezelmembranen met een dichte, niet-poreuze toplaag en een poreuze onderlaag, resp. met zowel een poreuze toplaag als een poreuze onderlaag.
EP0550879B1 (de) * 1992-01-07 1997-03-12 Akzo Nobel N.V. Verfahren zum Beschichten cellulosischer Membranen
US5240614A (en) * 1992-01-10 1993-08-31 Baxter International Inc. Process for removing unwanted materials from fluids and for producing biological products
US5480552A (en) * 1992-01-10 1996-01-02 Baxter International Inc. Method for concentrating a solute with an oscillating filtration device
JPH05310801A (ja) * 1992-05-08 1993-11-22 Teijin Ltd 変性セルロース系ポリマー、血液処理器及びその製造方法
EP0653241A1 (en) * 1993-11-16 1995-05-17 Hoechst Celanese Corporation Coated fibers
US5522991A (en) * 1994-07-20 1996-06-04 Millipore Investment Holdings Limited Cellulosic ultrafiltration membrane
WO1996009541A1 (fr) 1994-09-19 1996-03-28 Sekisui Kagaku Kogyo Kabushiki Kaisha Inhibiteur d'adherence des facteurs sanguins, accelerateur de coagulation sanguine, procede d'utilisation de ces agents, et recipient et support pour examens sanguins
US6706184B2 (en) * 2000-08-07 2004-03-16 Cuno Incorporated Unsupported multizone microporous membrane
FR2920786B1 (fr) * 2007-09-07 2010-09-10 Univ Claude Bernard Lyon Fibres creuses, notamment multi membranaires, leur procede de preparation par filage et dispositif pour la mise en oeuvre dudit procede
DE102008003090A1 (de) 2008-01-03 2009-07-16 Fresenius Medical Care Deutschland Gmbh Hohlfasermembran
SG188832A1 (en) * 2008-02-29 2013-04-30 Agency Science Tech & Res Hydrodynamic spinning of polymer fiber in coaxial laminar flows
DE102010055731A1 (de) 2010-12-22 2012-06-28 Fresenius Medical Care Deutschland Gmbh Delaminationsfreie Membran
DE102011010921A1 (de) 2011-02-10 2012-08-16 Fresenius Medical Care Deutschland Gmbh Delaminationsfreie Membran
JP6018076B2 (ja) 2010-12-22 2016-11-02 フレゼニウス メディカル ケアー ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツングＦｒｅｓｅｎｉｕｓ Ｍｅｄｉｃａｌ Ｃａｒｅ Ｄｅｕｔｓｃｈｌａｎｄ ＧｍｂＨ 層間剥離が生じない膜
EP3398675A1 (en) * 2017-05-02 2018-11-07 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Macroporous or mesoporous polymer films in hollow fiber or flat sheet geometry

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054995A (it) * 1900-01-01
FR776961A (fr) * 1933-10-26 1935-02-08 Comptoir Textiles Artificiels Procédé et dispositifs pour l'obtention de textiles artificiels nouveaux
US3276996A (en) * 1963-07-15 1966-10-04 Lazare Leon Separating water from saline solutions
US3441142A (en) * 1966-07-21 1969-04-29 Dow Chemical Co Nonthrombogenic plastic membranes
CH507012A (de) * 1966-09-02 1971-05-15 Dietzsch Gmbh Hans Joachim Verfahren zur Herstellung einer Kapillare für Membrankapillaren-Austauscher
US3600487A (en) * 1969-09-08 1971-08-17 Phillips Petroleum Co Forming parisons with nucleated inner layer
US3673612A (en) * 1970-08-28 1972-07-04 Massachusetts Inst Technology Non-thrombogenic materials and methods for their preparation
US3888771A (en) * 1972-06-02 1975-06-10 Asahi Chemical Ind Hollow fibers of cuprammonium cellulose and a process of the manufacture of same
US4071590A (en) * 1974-11-02 1978-01-31 Forschungsinstitute Bergof Gmbh Composite asymmetrical membranes
US3969240A (en) * 1975-02-03 1976-07-13 The United States Of America As Represented By The Department Of Health, Education And Welfare Polysiloxane membrane lung
US4127625A (en) * 1975-03-27 1978-11-28 Daicel Ltd. Process for preparing hollow fiber having selective gas permeability
DE2522821A1 (de) * 1975-05-23 1976-11-25 Battelle Institut E V Permselektive membran fuer kuenstliche nieren
GB1566581A (en) * 1975-12-29 1980-05-08 Nippon Zeon Co Hollow fibres and methods of manufacturing such fibres
US4061461A (en) * 1976-05-10 1977-12-06 Thermoplastice Processes Inc. Compound extrusion die for producing an internally lined extrudate

Also Published As

Publication number Publication date
DD133900A5 (de) 1979-01-31
ATA91078A (de) 1982-11-15
US4276172A (en) 1981-06-30
FR2380052A1 (fr) 1978-09-08
CS220316B2 (en) 1983-03-25
AT371341B (de) 1983-06-27
JPS53100698A (en) 1978-09-02
IT7847840A0 (it) 1978-01-30
FR2380052B1 (it) 1982-09-03
GB1562069A (en) 1980-03-05
JPS5735018B2 (it) 1982-07-27

Similar Documents

Publication Publication Date Title
IT1105155B (it) Membrana di cellulosa per emodialisi e procedimento per la sua produzione
IT1078944B (it) Membrana di dialisi per emodialisi e procedimento per la sua produzione
IT7867928A0 (it) Membrana rivestita particolarmente per deionizzatori e procedimentoper la sua fabbricazione
NO155816C (no) Fiberprodukt inneholdende cellulosefibre og fremgangsmaate til fremstilling derav.
IT1192585B (it) Polisaccaride avente attivita' anti-tumorale,procedimento per la sua produzione e sostanza anti-tumorale comprendente detto polisaccaride
RO77343A (ro) Solutia fasonabila din celuloza
DK142974C (da) Fremgangsmaade til fremstilling af rynket celluloseskind
IT1086695B (it) Membrana oculare e metodo per la sua preparazione
DK409478A (da) Semipermeable membraner
IT1068324B (it) Dializzatore specialmente per la emodialisi e procedimento per la sua fabbricazione
IT1117773B (it) Perfezionamento nelle membrane di dialisi in cellulosa rigenerata
BR7807522A (pt) Filtro de pressao com membrana
IT1132870B (it) Ossigenatore del sangue
PL209331A1 (pl) Sposob wytwarzania celulozy
IT8149622A0 (it) Membrana di cellulosa microporosa eprocedimento per la sua produzione
SE7808283L (sv) Membrandekoffinering
IT1133747B (it) Ossigenatore del sangue
IT7950414A0 (it) Perfezionamento nelle membrane di dialisi in cellulosa e procedimentodi produzione
IT1119314B (it) Procedimento per la sbianca della cellulosa
BR7604276A (pt) Membrana de cura
IT1008991B (it) Fibra antistatica e procedimento per la sua preparazione
IT1067317B (it) Membrana da dialisi con aperture di diametro uniforme e procedimento per la sua produzione
IT1082134B (it) Soluzioni di cellulosa foggiabili e procedimento per ottenerle
SE7802012L (sv) Proteinfibrer
IT1101746B (it) Involgoro cellulosico per generi alimentari e procedimento per la sua preparazione

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951218