ES462585A1 - Procedimiento para la obtencion de membranas semipermeables. - Google Patents

Procedimiento para la obtencion de membranas semipermeables.

Info

Publication number
ES462585A1
ES462585A1 ES462585A ES462585A ES462585A1 ES 462585 A1 ES462585 A1 ES 462585A1 ES 462585 A ES462585 A ES 462585A ES 462585 A ES462585 A ES 462585A ES 462585 A1 ES462585 A1 ES 462585A1
Authority
ES
Spain
Prior art keywords
aromatic
disulfimide
semipermeable membranes
membranes
containing polyamides
Prior art date
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
ES462585A
Other languages
English (en)
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.)
Bauer AG
Original Assignee
Bauer 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 Bauer AG filed Critical Bauer AG
Publication of ES462585A1 publication Critical patent/ES462585A1/es
Expired legal-status Critical Current

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
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/69—Polysulfonamides
    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen

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)
  • Polyamides (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Procedimiento para la obtención de membranas semipermeables, caracterizado porque poliamidas aromáticas, conteniendo grupos disulfimida, con viscosidades relativas de et arel >= 1,4, medido en una solución al 0,5% de N-metilpirrolidona a 20ºC se disuelven en cantidades de un 5 hasta 35% en peso, referido a la cantidad total de polímero y disolvente, bajo adición de un 1 hasta 10% en peso de una sal alcalina o alcalino-térrea o de una amina orgánica, en un disolvente aprótico polar y esta solución se conforma a películas, tubos, mangas o fibras huecas.
ES462585A 1976-09-24 1976-09-23 Procedimiento para la obtencion de membranas semipermeables. Expired ES462585A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2642979A DE2642979C2 (de) 1976-09-24 1976-09-24 Semipermeable Membranen aus Polyamiden

Publications (1)

Publication Number Publication Date
ES462585A1 true ES462585A1 (es) 1978-07-16

Family

ID=5988737

Family Applications (1)

Application Number Title Priority Date Filing Date
ES462585A Expired ES462585A1 (es) 1976-09-24 1976-09-23 Procedimiento para la obtencion de membranas semipermeables.

Country Status (12)

Country Link
US (1) US4269967A (es)
JP (1) JPS5339980A (es)
AT (1) AT367649B (es)
BE (1) BE858937A (es)
CA (1) CA1104748A (es)
CH (1) CH629970A5 (es)
DE (1) DE2642979C2 (es)
ES (1) ES462585A1 (es)
FR (1) FR2365361A1 (es)
GB (1) GB1559449A (es)
IE (1) IE45936B1 (es)
NL (1) NL7710362A (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741669A1 (de) * 1977-09-16 1979-03-22 Bayer Ag Semipermeable membranen aus acrylnitrilcopolymerisaten
JPS5569961A (en) * 1978-11-21 1980-05-27 Matsushita Electric Ind Co Ltd Manufacturing method for cadmium plate for cell
DE3220376A1 (de) * 1982-05-29 1983-12-01 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Membranfilter fuer mikrofiltration und verfahren zu seiner herstellung
GB8310666D0 (en) * 1983-04-20 1983-05-25 Limit Instant Ltd Treatment of membranes
US4544484A (en) * 1983-06-24 1985-10-01 E. I. Du Pont De Nemours And Company Reverse osmosis membrane quenching
DE3342823A1 (de) * 1983-11-26 1985-06-05 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Verfahren zum herstellen von filterelementen auf der basis von aromatischem polyamid
JPH0624146B2 (ja) * 1984-07-30 1994-03-30 新神戸電機株式会社 密閉形アルカリ蓄電池製造法
US4695383A (en) * 1986-03-12 1987-09-22 Toyo Boseki Kabushiki Kaisha Permselective membrane
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
AUPP790698A0 (en) * 1998-12-23 1999-01-28 Life Therapeutics Limited Separation of microorganisms
AUPP790898A0 (en) 1998-12-23 1999-01-28 Life Therapeutics Limited Renal dialysis
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
JP2003531362A (ja) 2000-04-18 2003-10-21 グラディポア・リミテッド 試料の電気泳動性分離および処理
AUPQ697300A0 (en) 2000-04-18 2000-05-11 Life Therapeutics Limited Separation apparatus
US6923896B2 (en) * 2000-09-22 2005-08-02 The Texas A&M University System Electrophoresis apparatus and method
EP1341596B1 (en) * 2000-10-06 2010-07-07 Arturus Capital Limited Multi-port electrophoresis separation apparatus and corresponding method
AUPR222300A0 (en) * 2000-12-21 2001-01-25 Life Therapeutics Limited Electrophoresis device and method
EP3238815A4 (en) * 2014-12-26 2018-06-27 Toray Industries, Inc. Composite semipermeable membrane

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1254100A (en) * 1968-02-23 1971-11-17 Bayer Ag Copolyamides having a large disulphimide group content
NL171019C (nl) * 1969-07-08 1983-02-01 Consiglio Nazionale Ricerche Membranen voor omgekeerde osmose.
US3664986A (en) * 1969-10-14 1972-05-23 Du Pont 1,2,5-thiadiazole polymers
DE2017509A1 (de) * 1970-04-13 1971-11-04 Bayer Ag Basisch anfärbbare hochmolekulare aromatische Polyamide
DE2017968A1 (de) * 1970-04-15 1971-10-28 Bayer Sauer modifizierte hochmolekulare Polyamide
US4129559A (en) * 1973-01-16 1978-12-12 Montedison S.P.A. Reverse osmosis anisotropic membranes based on polypiperazine amides
US4123424A (en) * 1973-05-07 1978-10-31 Montedison S.P.A. Polymeric piperazinamides and membranes for reverse osmosis made therefrom
US3993625A (en) * 1973-05-28 1976-11-23 Toray Industries, Inc. Permselective polymeric membranes of organic polyamide or polyhydrazide

Also Published As

Publication number Publication date
GB1559449A (en) 1980-01-16
BE858937A (fr) 1978-03-22
AT367649B (de) 1982-07-26
ATA679877A (de) 1981-12-15
CA1104748A (en) 1981-07-07
CH629970A5 (de) 1982-05-28
US4269967A (en) 1981-05-26
IE45936B1 (en) 1983-01-12
JPS5339980A (en) 1978-04-12
NL7710362A (nl) 1978-03-29
DE2642979C2 (de) 1986-02-06
FR2365361B1 (es) 1983-11-25
IE45936L (en) 1978-03-24
FR2365361A1 (fr) 1978-04-21
DE2642979A1 (de) 1978-03-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990503