DK293775A - Asymmetriske semipermeable membraner - Google Patents

Asymmetriske semipermeable membraner

Info

Publication number
DK293775A
DK293775A DK293775A DK293775A DK293775A DK 293775 A DK293775 A DK 293775A DK 293775 A DK293775 A DK 293775A DK 293775 A DK293775 A DK 293775A DK 293775 A DK293775 A DK 293775A
Authority
DK
Denmark
Prior art keywords
semipermeable membranes
asymmetric semipermeable
asymmetric
membranes
semipermeable
Prior art date
Application number
DK293775A
Other languages
English (en)
Other versions
DK145872B (da
DK145872C (da
Inventor
B Knickel
H Rudolph
J Hocker
J Lewalter
H J Rosenkranz
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of DK293775A publication Critical patent/DK293775A/da
Publication of DK145872B publication Critical patent/DK145872B/da
Application granted granted Critical
Publication of DK145872C publication Critical patent/DK145872C/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain

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)
  • Polyurethanes Or Polyureas (AREA)
DK293775A 1974-06-28 1975-06-27 Asymmetriske, semipermeable membraner af cycliske polyurinstoffer og deres anvendelse til afsaltning af vand eller adskillelse og koncentration af stofblandinger DK145872C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2431071 1974-06-28
DE2431071A DE2431071C2 (de) 1974-06-28 1974-06-28 Asymmetrische, semipermeable Membranen aus cyclischen Polyharnstoffen und deren Verwendung zur Meerwasserentsalzung oder zur Trennung und Konzentrierung von Stoffgemischen

Publications (3)

Publication Number Publication Date
DK293775A true DK293775A (da) 1975-12-29
DK145872B DK145872B (da) 1983-03-28
DK145872C DK145872C (da) 1983-09-12

Family

ID=5919181

Family Applications (1)

Application Number Title Priority Date Filing Date
DK293775A DK145872C (da) 1974-06-28 1975-06-27 Asymmetriske, semipermeable membraner af cycliske polyurinstoffer og deres anvendelse til afsaltning af vand eller adskillelse og koncentration af stofblandinger

Country Status (18)

Country Link
US (1) US4045337A (da)
JP (1) JPS584561B2 (da)
AT (1) AT343601B (da)
BE (1) BE830659A (da)
BR (1) BR7504058A (da)
CA (1) CA1052707A (da)
CH (1) CH618452A5 (da)
DD (1) DD120357A5 (da)
DE (1) DE2431071C2 (da)
DK (1) DK145872C (da)
FI (1) FI751893A (da)
FR (1) FR2276343A1 (da)
GB (1) GB1488300A (da)
IL (1) IL47563A (da)
IT (1) IT1040711B (da)
NL (1) NL7507570A (da)
NO (1) NO141458C (da)
SE (2) SE403570B (da)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272467A (en) * 1975-12-22 1981-06-09 Exxon Research & Engineering Co. Method for producing an essentially gas and liquid impermeable low density, closed-cell, microcellular polyparabanic acid article
US4105616A (en) * 1977-10-26 1978-08-08 Exxon Research & Engineering Co. Heterocyclic polymer solutions and products therefrom
JPS54107882A (en) * 1978-02-13 1979-08-24 Toray Ind Inc Semipermeable membrane
EP0043481B1 (de) * 1980-07-02 1984-11-28 Bayer Ag Semipermeable Membranen
JPH01164402A (ja) * 1987-10-14 1989-06-28 Exxon Res & Eng Co ポリ尿素膜及び芳香族化合物と非芳香族化合物との分離のためのその用途
DE59206996D1 (de) * 1991-10-26 1996-10-02 Hoechst Ag Hydrophile, asymmetrische, chemikalienbeständige Polyaramidmembran
DE4338196A1 (de) * 1993-11-09 1995-05-11 Bayer Ag Verfahren zum Reinigen organischer Syntheseprodukte
AUPP521298A0 (en) * 1998-08-12 1998-09-03 Life Therapeutics Limited Purification of fibrinogen
US20050224355A1 (en) * 1999-12-23 2005-10-13 Brendon Conlan Removal of biological contaminants
AUPP790898A0 (en) 1998-12-23 1999-01-28 Life Therapeutics Limited Renal dialysis
AUPP790698A0 (en) * 1998-12-23 1999-01-28 Life Therapeutics Limited Separation of microorganisms
US7077942B1 (en) 1999-12-23 2006-07-18 Gradipore Limited Removal of biological contaminants
AUPQ691400A0 (en) * 2000-04-14 2000-05-11 Life Therapeutics Limited Separation of micromolecules
AUPQ697300A0 (en) * 2000-04-18 2000-05-11 Life Therapeutics Limited Separation apparatus
ATE449200T1 (de) 2000-04-18 2009-12-15 Gradipore Ltd Trennung und behandlung von proben durch elektrophorese
US6923896B2 (en) * 2000-09-22 2005-08-02 The Texas A&M University System Electrophoresis apparatus and method
CN1235667C (zh) * 2000-10-06 2006-01-11 格拉迪普有限公司 多口分离装置及方法
AUPR222300A0 (en) * 2000-12-21 2001-01-25 Life Therapeutics Limited Electrophoresis device and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE608328A (da) * 1960-09-19
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making
US3503939A (en) * 1967-03-29 1970-03-31 Du Pont Polyamides from heterocyclic diamines
US3526588A (en) * 1967-09-21 1970-09-01 Amicon Corp Macromolecular fractionation process
US3630999A (en) * 1969-11-12 1971-12-28 Pennwalt Corp Tetrasubstituted urea monomers and polymers
US3752784A (en) * 1970-12-23 1973-08-14 Du Pont Process for preparing microporous opencelled cellular polymeric structures
US3901810A (en) * 1972-09-21 1975-08-26 Calgon Corp Ultrafiltration membranes

Also Published As

Publication number Publication date
FI751893A (da) 1975-12-29
GB1488300A (en) 1977-10-12
IL47563A (en) 1977-07-31
SE422004B (sv) 1982-02-15
DD120357A5 (da) 1976-06-12
BR7504058A (pt) 1976-06-29
ATA491375A (de) 1977-10-15
DK145872B (da) 1983-03-28
DE2431071C2 (de) 1982-03-04
US4045337A (en) 1977-08-30
NO141458C (no) 1980-03-19
AU8242975A (en) 1977-01-06
SE403570B (sv) 1978-08-28
SE7507346L (sv) 1975-12-29
DE2431071A1 (de) 1976-01-15
NO141458B (no) 1979-12-10
BE830659A (fr) 1975-12-29
JPS5127880A (en) 1976-03-09
FR2276343B1 (da) 1978-10-27
NO752114L (da) 1975-12-30
DK145872C (da) 1983-09-12
AT343601B (de) 1978-06-12
IT1040711B (it) 1979-12-20
IL47563A0 (en) 1975-08-31
SE7800543L (sv) 1978-01-17
FR2276343A1 (fr) 1976-01-23
CH618452A5 (da) 1980-07-31
CA1052707A (en) 1979-04-17
JPS584561B2 (ja) 1983-01-27
NL7507570A (nl) 1975-12-30

Similar Documents

Publication Publication Date Title
BE833473A (fr) Membrane
FR2336962A1 (fr) Membranes semi-permeables composees
DK146878C (da) Fremgangsmaade til fremstilling af separationsmembraner
AT318656B (de) Semipermeable Membranen
SE411301B (sv) Blodfiltreringspase
BE822901A (fr) Membranes
DK146615C (da) Fremgangsmaade til forbedring af semipermeable membraners frastoedningsydeevne
DK293775A (da) Asymmetriske semipermeable membraner
AT343084B (de) Asymmetrische, semipermeable membranen
IT1032540B (it) Membrane ad levata diffusivita
AT367649B (de) Semipermeable membranen
NL7514720A (nl) Microfilter.
IT994997B (it) Membrane semipermeabili
BE849098A (fr) Membranes semi-permeables en copolyamides,
NL7509646A (nl) Membraanfilterinrichting.
SE7506325L (sv) Selektiv dialys.
BE842345R (fr) Membranes
BE849099A (fr) Membranes semi-permeables en copolyamides,
DK148436C (da) Fibroest baerelag for semipermeable membraner
FR2295065A1 (fr) Membrane de separation de solute
AT334403B (de) Membranfiltrationsanlage
BE842016A (nl) Semipermeabele membranen
IT1034713B (it) Cartuccia per dializzatori
DK135881B (da) Membranfiltreringsapparat.
DK136759B (da) Membranfiltreringsapparat.

Legal Events

Date Code Title Description
PBP Patent lapsed