ZA813985B - A dialysis membrane of cellulose - Google Patents

A dialysis membrane of cellulose

Info

Publication number
ZA813985B
ZA813985B ZA813985A ZA813985A ZA813985B ZA 813985 B ZA813985 B ZA 813985B ZA 813985 A ZA813985 A ZA 813985A ZA 813985 A ZA813985 A ZA 813985A ZA 813985 B ZA813985 B ZA 813985B
Authority
ZA
South Africa
Prior art keywords
weight
cellulose
dialysis membrane
temperatures
degrees
Prior art date
Application number
ZA813985A
Inventor
Klaus Gerlach
Joachim Behnke
Alexander Brandner
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
Application filed by Akzo Nv filed Critical Akzo Nv
Publication of ZA813985B publication Critical patent/ZA813985B/en

Links

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
    • B01D71/10—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • C08L1/06—Cellulose hydrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • External Artificial Organs (AREA)
  • Artificial Filaments (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Prostheses (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)

Abstract

1. A process for the production of a dialysis membrane of regenerated cellulose in the form of flat films, tubular films or hollow filaments, characterized in that a mixture of from 7 to 25 % by weight of cellulose, from 93 to 50 % by weight of tertiary amine oxide, optionally up to 25 % by weight of a diluent which does not dissolve the cellulose and up to 10 % by weight of standard additives, based in each case on the weight of the spinning solution, is dissolved in less than 8 minutes at temperatures of from 80 to 150 degrees C in a mixing unit, in that the solution is degassed, extruded through a wide slot die, annular slot die or hollow filament die into a precipitation bath, washed and, after addition of plasticizer, is dried without shrinkage at temperatures of from 50 to 110 degrees C and wound into roll form.
ZA813985A 1980-06-12 1981-06-12 A dialysis membrane of cellulose ZA813985B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3021943A DE3021943A1 (en) 1980-06-12 1980-06-12 CELLULOSE DIALYSIS MEMBRANE

Publications (1)

Publication Number Publication Date
ZA813985B true ZA813985B (en) 1982-06-30

Family

ID=6104375

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA813985A ZA813985B (en) 1980-06-12 1981-06-12 A dialysis membrane of cellulose

Country Status (16)

Country Link
EP (1) EP0042517B1 (en)
JP (1) JPS5724606A (en)
AT (1) ATE7206T1 (en)
AU (1) AU7147981A (en)
BR (1) BR8103677A (en)
CA (1) CA1171615A (en)
DD (1) DD159527A5 (en)
DE (1) DE3021943A1 (en)
DK (1) DK254081A (en)
ES (1) ES8203629A1 (en)
FI (1) FI811840L (en)
GR (1) GR74574B (en)
IL (1) IL63068A0 (en)
NO (1) NO811958L (en)
PT (1) PT73167B (en)
ZA (1) ZA813985B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317037A1 (en) * 1983-05-10 1984-11-15 Hoechst Ag, 6230 Frankfurt REGENERATED CELLULOSE MEMBRANE WITH IMPROVED DIFFUSION PROPERTIES AND METHOD FOR PRODUCING THE SAME
US4496456A (en) * 1983-06-03 1985-01-29 Exxon Research & Engineering Co. Method for preparing thin regenerated cellulose membranes of high flux and selectivity for organic liquids separations
SE8303413L (en) * 1983-06-15 1984-12-16 Gambro Dialysatoren SETTLE TO TREAT A CELLULOSA FIBER
JPS61146306A (en) * 1984-12-20 1986-07-04 Terumo Corp Preparation of hollow yarn for dialysis
DE4038247A1 (en) * 1990-11-30 1992-06-04 Akzo Gmbh CELLULOSE HOLLOW DIALYSIS THREAD
USH1592H (en) * 1992-01-17 1996-09-03 Viskase Corporation Cellulosic food casing
US5702783A (en) * 1992-01-17 1997-12-30 Viskase Corporation Food casing of nonderivatized cellulose
US5451364A (en) * 1992-01-17 1995-09-19 Viskase Corporation Cellulose food casing manufacturing method
US5277857A (en) * 1992-01-17 1994-01-11 Viskase Corporation Method of making a cellulose food casing
AT399519B (en) * 1993-09-14 1995-05-26 Chemiefaser Lenzing Ag FORM- OR SPINNING CONTAINER CONTAINING CELLULOSE AND METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
AT400581B (en) * 1993-10-19 1996-01-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING SOLUTIONS OF CELLULOSE
US5603884A (en) * 1994-11-18 1997-02-18 Viskase Corporation Reinforced cellulosic film
DE19515137A1 (en) * 1995-04-25 1996-10-31 Thueringisches Inst Textil Process for the production of flat cellulose films
EP0807460A1 (en) * 1996-05-15 1997-11-19 Akzo Nobel N.V. Cellulosic dialysis membrane
AT404731B (en) 1997-04-25 1999-02-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC FLAT FILMS AND THEIR USE
US5942167A (en) 1997-08-12 1999-08-24 Viskase Corporation Method of making a cellulose food casing including solvent recovery
DE19750527C2 (en) * 1997-11-14 1999-11-18 Akzo Nobel Nv Cellulosic separation membrane
AT407156B (en) * 1998-06-04 2001-01-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
AT408656B (en) * 1998-06-04 2002-02-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
EP1123190B1 (en) * 1998-10-21 2006-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Cellulose extrusion and apparatus therefor
AT406958B (en) * 1998-10-22 2000-11-27 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC FLAT FILMS
FR2815886B1 (en) 2000-10-30 2002-12-06 Hospal Ind HOLLOW FIBER BEAM FOR AN APPARATUS FOR THE EXTRACORPORAL TREATMENT OF BLOOD AND PLASMA AND ITS MANUFACTURING PROCESS
JP2002177748A (en) * 2000-12-08 2002-06-25 Nok Corp Method for treating porous organic hollow fiber membrane
AT506657A1 (en) * 2008-04-14 2009-10-15 Chemiefaser Lenzing Ag CELLULOSE-BASED HYDROGEL AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1028461A (en) * 1962-05-31 1966-05-04 Stephen Robert Mercer Elllis Cellulosic films for use as semi-permeable membranes in permeation processes
US3447939A (en) * 1966-09-02 1969-06-03 Eastman Kodak Co Compounds dissolved in cyclic amine oxides
IL52259A (en) * 1976-06-22 1981-02-27 Akzo Nv Dialysis membrane and its manufacture
DE2705735C3 (en) * 1977-02-11 1982-05-19 Akzo Gmbh, 5600 Wuppertal Dialysis membrane for hemodialysis
US4144080A (en) * 1977-07-26 1979-03-13 Akzona Incorporated Process for making amine oxide solution of cellulose
US4142913A (en) * 1977-07-26 1979-03-06 Akzona Incorporated Process for making a precursor of a solution of cellulose
DE2736569B2 (en) * 1977-08-13 1979-07-19 Hoechst Ag, 6000 Frankfurt Viscous membrane for hemodialysis and process for their manufacture
US4196282A (en) * 1977-11-25 1980-04-01 Akzona Incorporated Process for making a shapeable cellulose and shaped cellulose products
DE2823985C2 (en) * 1978-06-01 1986-01-02 Akzo Gmbh, 5600 Wuppertal Dialysis membrane

Also Published As

Publication number Publication date
CA1171615A (en) 1984-07-31
DD159527A5 (en) 1983-03-16
DE3021943A1 (en) 1982-01-21
ES502962A0 (en) 1982-04-01
IL63068A0 (en) 1981-09-13
JPH0460692B2 (en) 1992-09-28
NO811958L (en) 1982-03-22
DK254081A (en) 1981-12-13
DE3021943C2 (en) 1987-07-30
ES8203629A1 (en) 1982-04-01
PT73167B (en) 1982-07-16
AU7147981A (en) 1981-12-17
JPS5724606A (en) 1982-02-09
BR8103677A (en) 1982-03-02
GR74574B (en) 1984-06-29
FI811840L (en) 1981-12-13
PT73167A (en) 1981-07-01
EP0042517A1 (en) 1981-12-30
ATE7206T1 (en) 1984-05-15
EP0042517B1 (en) 1984-04-25

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