CA2008328A1 - Semipermeable membrane made from a homogeneously miscible polymer blend - Google Patents

Semipermeable membrane made from a homogeneously miscible polymer blend

Info

Publication number
CA2008328A1
CA2008328A1 CA002008328A CA2008328A CA2008328A1 CA 2008328 A1 CA2008328 A1 CA 2008328A1 CA 002008328 A CA002008328 A CA 002008328A CA 2008328 A CA2008328 A CA 2008328A CA 2008328 A1 CA2008328 A1 CA 2008328A1
Authority
CA
Canada
Prior art keywords
membrane
polymer blend
phenylene
miscible polymer
homogeneously miscible
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.)
Granted
Application number
CA002008328A
Other languages
French (fr)
Other versions
CA2008328C (en
Inventor
Michael Haubs
Willi Kreuder
Claus-Peter Krieg
Juergen Wildhardt
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.)
Hoechst AG
Original Assignee
Michael Haubs
Willi Kreuder
Claus-Peter Krieg
Juergen Wildhardt
Hoechst Aktiengesellschaft
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 Michael Haubs, Willi Kreuder, Claus-Peter Krieg, Juergen Wildhardt, Hoechst Aktiengesellschaft filed Critical Michael Haubs
Publication of CA2008328A1 publication Critical patent/CA2008328A1/en
Application granted granted Critical
Publication of CA2008328C publication Critical patent/CA2008328C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0083—Thermal after-treatment
    • 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

Abstract

A semipermeable membrane is described which comprises a homogeneously miscible polymer blend of an aromatic polyamide and polyvinylpyrrolidone. The aromatic polyamide is in particular formed of recurrent units of the formula I:
(see formula I) wherein E1 and E2 are identical or different and are selected from the groupings (see formula II) -Ar1-, and -Ar1-X-Ar2, where Ar1 and Ar2 are the same or different 1,2-phenylene, 1,3-phenylene or 1,4-phenylene groups which may be substituted by (C1-C6) -alkyl , (C1-C6)-alkoxy, -CF3 or halogen and X denotes a) a direct bond or one of the following divalent groups -O-, -C (CF3)2-, -SO2-, -CO-, -C(R1)2-, with R2 being hydrogen, (C1-C6)-alkyl or fluoroalkyl having from 1 to 4 carbon atoms in the alkyl group or b) -Z-Ar1-Z-, where Z is one of the groups -O- and -C(CH3)2 or c) -O-Ar1-Y-Ar2-O-, where Y has the meaning given under Xa) above.
The membrane has pronounced hydrophilic properties and is moreover stable to hydrolyzing agents and oxidants and to the action of heat. It is also resistant to organic solvents and microorganisms and exhibits low adsorption of proteins.
A process for producing the membrane and a process for modifying the retention capacity thereof are also described. The membrane is produced by spreading a solution of the homogeneously miscible polymer blend on a planar substrate and precipitating the blend. Retention capacity is modified by heat treatment.
CA002008328A 1989-02-02 1990-01-23 Semipermeable membrane made from a homogeneously miscible polymer blend Expired - Fee Related CA2008328C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3903098A DE3903098A1 (en) 1989-02-02 1989-02-02 SEMIPERMEABLE MEMBRANE MADE OF A HOMOGENOUSLY MIXABLE POLYMER ALLOY
DEP3903098.9 1989-02-02

Publications (2)

Publication Number Publication Date
CA2008328A1 true CA2008328A1 (en) 1990-08-02
CA2008328C CA2008328C (en) 2001-04-10

Family

ID=6373294

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002008328A Expired - Fee Related CA2008328C (en) 1989-02-02 1990-01-23 Semipermeable membrane made from a homogeneously miscible polymer blend

Country Status (13)

Country Link
US (1) US5152894A (en)
EP (1) EP0382009B1 (en)
JP (1) JPH03196822A (en)
KR (1) KR0159772B1 (en)
AT (1) ATE120982T1 (en)
AU (1) AU630148B2 (en)
CA (1) CA2008328C (en)
DE (2) DE3903098A1 (en)
DK (1) DK0382009T3 (en)
ES (1) ES2071686T3 (en)
FI (1) FI98497C (en)
NO (1) NO174375C (en)
NZ (1) NZ232314A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW205513B (en) * 1991-02-28 1993-05-11 Hoechst Ag
EP0543171B1 (en) * 1991-10-26 1997-02-05 Hoechst Aktiengesellschaft Semi-permeable porous asymmetric polyether amide membranes
DE59206996D1 (en) * 1991-10-26 1996-10-02 Hoechst Ag Hydrophilic, asymmetrical, chemical-resistant polyaramid membrane
US5562826A (en) * 1991-10-26 1996-10-08 Hoechst Aktiengesellschaft Semipermeable, porous, asymmetric polyether amide membranes
EP0604882B1 (en) * 1992-12-30 1998-08-26 Hoechst Aktiengesellschaft Semipermeable membranes made of homogeneous mixable polymeric alloys
DE4418843A1 (en) 1994-05-30 1995-12-07 Hoechst Ag Porous membrane made from aromatic polyamide
DE4432859C2 (en) * 1994-09-15 1996-10-31 Seitz Filter Werke Symmetrical microfiltration membrane made from aromatic polyamide and process for its production
DE19514540A1 (en) * 1995-04-20 1996-10-24 Gambro Dialysatoren Membrane sterilizable with heat
DE19549001A1 (en) * 1995-12-28 1997-07-03 Hoechst Ag Process for the preparation of polyether amide solutions, steam-sterilizable dialysis membranes obtainable using the polyether amide solutions, and process for the production of these membranes
US6306301B1 (en) * 1996-10-31 2001-10-23 University Of Kentucky Research Foundation Silica-based membrane sorbent for heavy metal sequestration
US6103121A (en) * 1996-10-31 2000-08-15 University Of Kentucky Research Foundation Membrane-based sorbent for heavy metal sequestration
US6139742A (en) * 1996-10-31 2000-10-31 University Of Kentucky Research Foundation Membrane-based sorbent for heavy metal sequestration
DE19962319A1 (en) * 1999-12-23 2001-06-28 Clariant Gmbh Water-dilutable binder for quick-drying coating materials, e.g. paint, plaster or masonry paint, based on polymer dispersion containing polyacid-polyvinylpyrrolidone complex
TW504400B (en) * 2001-01-31 2002-10-01 Toshiba Corp Filtering apparatus, back wash method therefor, filtering device and power plant
JP2002306059A (en) * 2001-04-17 2002-10-22 Gunze Kobunshi Corp Casing film for food
NL1030288C2 (en) * 2004-10-29 2006-10-09 Toray Industries Semi-permeable composite membrane, production method thereof, and element, fluid separation plant and method for treatment of water using the same.
EP2373638A4 (en) * 2008-12-04 2014-01-15 Univ Akron Polymer composition and dialysis membrane formed from the polymer composition
US20120003361A1 (en) * 2009-03-17 2012-01-05 Ube Industries, Ltd. Polyamide resin composition, film comprising the same and polyamide-based laminate film
CN102781560B (en) * 2010-02-23 2015-05-20 东丽株式会社 Composite semipermeable membrane and process for production thereof
WO2011130206A1 (en) * 2010-04-14 2011-10-20 The University Of Akron Polymer composition with phytochemical and dialysis membrane formed from the polymer composition
CN104524995B (en) * 2014-12-23 2017-01-04 大连理工大学 A kind of Stable structure separation film and preparation method thereof
CN104801205B (en) * 2015-04-20 2017-06-06 天津工业大学 A kind of preparation method of the enhanced PPTA hollow-fibre membranes of homogeneity
EP3095509A1 (en) * 2015-05-18 2016-11-23 Defymed Membranes functionalized with heparin for bioartificial organs

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526588A (en) * 1967-09-21 1970-09-01 Amicon Corp Macromolecular fractionation process
US3615024A (en) * 1968-08-26 1971-10-26 Amicon Corp High flow membrane
US4051300A (en) * 1973-09-03 1977-09-27 Gulf South Research Institute Hollow synthetic fibers
DE2751910B2 (en) * 1977-11-21 1979-09-20 Hoechst Ag, 6000 Frankfurt Permselective, asymmetric hemofiltration membrane with heteroporous structure
US4900443A (en) * 1980-03-14 1990-02-13 Memtec North America Corporation Porous aramid membranes and emulsions useful for the casting thereof
JPS5858106A (en) * 1981-09-30 1983-04-06 Kuraray Co Ltd Separation of mixed liquid
ES8308901A1 (en) * 1981-10-21 1983-10-01 Du Pont Supported reverse osmosis membranes.
DE3149976A1 (en) * 1981-12-17 1983-06-30 Hoechst Ag, 6230 Frankfurt MACROPOROUS ASYMMETRIC HYDROPHILE MEMBRANE MADE OF SYNTHETIC POLYMER
US4906375A (en) * 1984-07-14 1990-03-06 Fresenius, Ag Asymmetrical microporous hollow fiber for hemodialysis
DE3426331A1 (en) * 1984-07-17 1986-01-30 6380 Bad Homburg Fresenius AG ASYMMETRIC MICROPOROUS HOLLOW FIBER FOR HAEMODIALYSIS AND METHOD FOR THE PRODUCTION THEREOF
AU4787685A (en) * 1984-09-27 1986-04-10 E.I. Du Pont De Nemours And Company Aromatic polyamide membrane for reverse osmosis
JPS61271006A (en) * 1985-05-28 1986-12-01 Nok Corp Ultrafiltration membrane
JPS6297624A (en) * 1985-10-24 1987-05-07 イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− Gas separation method and membrane
IL81082A (en) * 1985-12-23 1990-07-12 Gelman Sciences Inc Polymeric microporous membranes suitable for the electronic and pharmaceutical industries and their preparation
SE460521B (en) * 1987-08-31 1989-10-23 Gambro Dialysatoren PERMSELECTIVE ASYMMETRIC MEMBRANE AND PROCEDURES FOR ITS PREPARATION
DE3802030A1 (en) * 1988-01-25 1989-07-27 Hoechst Ag MACROPOROISE, ASYMMETRICAL, HYDROPHILE MEMBRANE MADE OF POLYARAMIDE

Also Published As

Publication number Publication date
KR900012982A (en) 1990-09-03
FI98497C (en) 1997-07-10
DE59008872D1 (en) 1995-05-18
AU630148B2 (en) 1992-10-22
DE3903098A1 (en) 1990-08-16
US5152894A (en) 1992-10-06
NO174375C (en) 1994-04-27
NO900475L (en) 1990-08-03
EP0382009B1 (en) 1995-04-12
CA2008328C (en) 2001-04-10
AU4900190A (en) 1990-08-09
DK0382009T3 (en) 1995-07-03
EP0382009A1 (en) 1990-08-16
JPH03196822A (en) 1991-08-28
ES2071686T3 (en) 1995-07-01
NZ232314A (en) 1992-06-25
KR0159772B1 (en) 1998-11-16
FI900483A0 (en) 1990-01-31
NO174375B (en) 1994-01-17
ATE120982T1 (en) 1995-04-15
NO900475D0 (en) 1990-02-01
FI98497B (en) 1997-03-27

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