JPS61257203A - Hydrophilic porous membrane and its preparation - Google Patents

Hydrophilic porous membrane and its preparation

Info

Publication number
JPS61257203A
JPS61257203A JP9801885A JP9801885A JPS61257203A JP S61257203 A JPS61257203 A JP S61257203A JP 9801885 A JP9801885 A JP 9801885A JP 9801885 A JP9801885 A JP 9801885A JP S61257203 A JPS61257203 A JP S61257203A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
polymer
hydrophilic
hydrophobic polymer
porous membrane
solvent
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 - Lifetime
Application number
JP9801885A
Other versions
JPH0451209B2 (en )
Inventor
Masaaki Kasai
Noriyuki Koyama
Original Assignee
Terumo Corp
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/30Polyalkenyl halides
    • B01D71/32Polyalkenyl halides containing fluorine atoms
    • B01D71/34Polyvinylidene fluoride
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane formation
    • B01D67/0009Organic membrane formation by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011Casting solutions therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0039Inorganic membrane formation
    • B01D67/0046Inorganic membrane formation by slurry techniques, e.g. die or slip-casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/12Specific ratios of components used
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/36Hydrophilic membranes

Abstract

PURPOSE:To obtain porous membrane having elevated water permeability while maintaining high strength, chemical resistance and heat resistance by using a mixture of a hydrophilic water-insoluble polymer with a hydrophobic polymer having common solvent with the hydrophilic polymer. CONSTITUTION:A mixture of a hydrophobic polymer with a hydrophilic water- insoluble polymer is used as a material for prepg. the porous membrane. The proportion of the hydrophilic polymer to be mixed with the hydrophobic polymer is 10-50wt% basing on the amt. of the hydrophobic polymer. It is necessary that the hydrophilic polymer and the hydrophobic polymer have a common solvent. Both polymers are dissolved in the common solvent. Preferred concn. is 15-25wt%. Further, the solvent consists preferably of a quick drying solvent and slow drying solvent in 50:50-95:5 weight ratio. The solution is casted and casted film is allowed to contact with a nonsolvent for the hydrophobic polymer to cause coagulation. Thus, hydrophilic porous membrane is obtd.
JP9801885A 1985-05-10 1985-05-10 Expired - Lifetime JPH0451209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9801885A JPH0451209B2 (en) 1985-05-10 1985-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9801885A JPH0451209B2 (en) 1985-05-10 1985-05-10

Publications (2)

Publication Number Publication Date
JPS61257203A true true JPS61257203A (en) 1986-11-14
JPH0451209B2 JPH0451209B2 (en) 1992-08-18

Family

ID=14208108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9801885A Expired - Lifetime JPH0451209B2 (en) 1985-05-10 1985-05-10

Country Status (1)

Country Link
JP (1) JPH0451209B2 (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01145065A (en) * 1987-08-26 1989-06-07 Cobe Lab Inc Device to collect blood component
US4935141A (en) * 1987-08-31 1990-06-19 Gambro, Dialysatoren Kg Selectively permeable asymmetric membranes suitable for use in hemodialysis and processes for manufacturing such membranes
WO1990011820A2 (en) * 1989-04-06 1990-10-18 Beam Tech Limited Porous articles
WO2002038256A1 (en) * 2000-11-13 2002-05-16 Usf Filtration And Separations Group Inc. Modified membranes
WO2006001528A1 (en) * 2004-06-28 2006-01-05 Kureha Corporation Porous membrane for water treatment and process for producing the same
WO2008001426A1 (en) 2006-06-27 2008-01-03 Toray Industries, Inc. Polymer separation membrane and process for producing the same
US8057574B2 (en) 2003-07-08 2011-11-15 Siemens Industry, Inc. Membrane post treatment
JP2012506772A (en) * 2008-10-28 2012-03-22 アーケマ・インコーポレイテッド Water flux polymer film
US8268176B2 (en) 2003-08-29 2012-09-18 Siemens Industry, Inc. Backwash
US8287743B2 (en) 2007-05-29 2012-10-16 Siemens Industry, Inc. Membrane cleaning with pulsed airlift pump
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US8318028B2 (en) 2007-04-02 2012-11-27 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US8377305B2 (en) 2004-09-15 2013-02-19 Siemens Industry, Inc. Continuously variable aeration
US8382981B2 (en) 2008-07-24 2013-02-26 Siemens Industry, Inc. Frame system for membrane filtration modules
US8858796B2 (en) 2005-08-22 2014-10-14 Evoqua Water Technologies Llc Assembly for water filtration using a tube manifold to minimise backwash
US8956464B2 (en) 2009-06-11 2015-02-17 Evoqua Water Technologies Llc Method of cleaning membranes
US9022224B2 (en) 2010-09-24 2015-05-05 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
US9533261B2 (en) 2012-06-28 2017-01-03 Evoqua Water Technologies Llc Potting method
US9604166B2 (en) 2011-09-30 2017-03-28 Evoqua Water Technologies Llc Manifold arrangement
US9675938B2 (en) 2005-04-29 2017-06-13 Evoqua Water Technologies Llc Chemical clean for membrane filter
US9764289B2 (en) 2012-09-26 2017-09-19 Evoqua Water Technologies Llc Membrane securement device
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
US9815027B2 (en) 2012-09-27 2017-11-14 Evoqua Water Technologies Llc Gas scouring apparatus for immersed membranes
US9868834B2 (en) 2012-09-14 2018-01-16 Evoqua Water Technologies Llc Polymer blend for membranes
US9914097B2 (en) 2010-04-30 2018-03-13 Evoqua Water Technologies Llc Fluid flow distribution device
US9925499B2 (en) 2011-09-30 2018-03-27 Evoqua Water Technologies Llc Isolation valve with seal for end cap of a filtration system
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344486A (en) * 1976-10-05 1978-04-21 Nisshinbo Ind Inc Membrane for separating material and separating method
JPS5750507A (en) * 1980-09-11 1982-03-25 Mitsubishi Rayon Co Ltd Permselective membrane and its production
JPS5891731A (en) * 1981-11-27 1983-05-31 Teijin Ltd Asymmetrical porous membrane of polyvinyl fluoride and its production
JPS58205503A (en) * 1982-05-22 1983-11-30 Kanebo Ltd Oil-water separating film and its production
JPS60202702A (en) * 1984-03-26 1985-10-14 Showa Denko Kk Dialysis membrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344486A (en) * 1976-10-05 1978-04-21 Nisshinbo Ind Inc Membrane for separating material and separating method
JPS5750507A (en) * 1980-09-11 1982-03-25 Mitsubishi Rayon Co Ltd Permselective membrane and its production
JPS5891731A (en) * 1981-11-27 1983-05-31 Teijin Ltd Asymmetrical porous membrane of polyvinyl fluoride and its production
JPS58205503A (en) * 1982-05-22 1983-11-30 Kanebo Ltd Oil-water separating film and its production
JPS60202702A (en) * 1984-03-26 1985-10-14 Showa Denko Kk Dialysis membrane

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01145065A (en) * 1987-08-26 1989-06-07 Cobe Lab Inc Device to collect blood component
US4935141A (en) * 1987-08-31 1990-06-19 Gambro, Dialysatoren Kg Selectively permeable asymmetric membranes suitable for use in hemodialysis and processes for manufacturing such membranes
WO1990011820A2 (en) * 1989-04-06 1990-10-18 Beam Tech Limited Porous articles
WO1990011820A3 (en) * 1989-04-06 1990-11-29 Beam Tech Ltd Porous articles
WO2002038256A1 (en) * 2000-11-13 2002-05-16 Usf Filtration And Separations Group Inc. Modified membranes
US8057574B2 (en) 2003-07-08 2011-11-15 Siemens Industry, Inc. Membrane post treatment
US8262778B2 (en) 2003-07-08 2012-09-11 Siemens Industry, Inc. Membrane post treatment
US8268176B2 (en) 2003-08-29 2012-09-18 Siemens Industry, Inc. Backwash
WO2006001528A1 (en) * 2004-06-28 2006-01-05 Kureha Corporation Porous membrane for water treatment and process for producing the same
US8377305B2 (en) 2004-09-15 2013-02-19 Siemens Industry, Inc. Continuously variable aeration
US9675938B2 (en) 2005-04-29 2017-06-13 Evoqua Water Technologies Llc Chemical clean for membrane filter
US8894858B1 (en) 2005-08-22 2014-11-25 Evoqua Water Technologies Llc Method and assembly for water filtration using a tube manifold to minimize backwash
US8858796B2 (en) 2005-08-22 2014-10-14 Evoqua Water Technologies Llc Assembly for water filtration using a tube manifold to minimise backwash
US9259690B2 (en) 2006-06-27 2016-02-16 Toray Industries, Inc. Polymer separation membrane and process for producing the same
WO2008001426A1 (en) 2006-06-27 2008-01-03 Toray Industries, Inc. Polymer separation membrane and process for producing the same
EP2033705A4 (en) * 2006-06-27 2011-06-29 Toray Industries Polymer separation membrane and process for producing the same
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US8318028B2 (en) 2007-04-02 2012-11-27 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
US8840783B2 (en) 2007-05-29 2014-09-23 Evoqua Water Technologies Llc Water treatment membrane cleaning with pulsed airlift pump
US8287743B2 (en) 2007-05-29 2012-10-16 Siemens Industry, Inc. Membrane cleaning with pulsed airlift pump
US8372276B2 (en) 2007-05-29 2013-02-12 Siemens Industry, Inc. Membrane cleaning with pulsed airlift pump
US9206057B2 (en) 2007-05-29 2015-12-08 Evoqua Water Technologies Llc Membrane cleaning with pulsed airlift pump
US9573824B2 (en) 2007-05-29 2017-02-21 Evoqua Water Technologies Llc Membrane cleaning with pulsed airlift pump
US9023206B2 (en) 2008-07-24 2015-05-05 Evoqua Water Technologies Llc Frame system for membrane filtration modules
US8382981B2 (en) 2008-07-24 2013-02-26 Siemens Industry, Inc. Frame system for membrane filtration modules
US9707524B2 (en) 2008-10-28 2017-07-18 Arkema Inc. Water flux polymer membranes
JP2012506772A (en) * 2008-10-28 2012-03-22 アーケマ・インコーポレイテッド Water flux polymer film
US8956464B2 (en) 2009-06-11 2015-02-17 Evoqua Water Technologies Llc Method of cleaning membranes
US9914097B2 (en) 2010-04-30 2018-03-13 Evoqua Water Technologies Llc Fluid flow distribution device
US9630147B2 (en) 2010-09-24 2017-04-25 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
US9022224B2 (en) 2010-09-24 2015-05-05 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
US9604166B2 (en) 2011-09-30 2017-03-28 Evoqua Water Technologies Llc Manifold arrangement
US9925499B2 (en) 2011-09-30 2018-03-27 Evoqua Water Technologies Llc Isolation valve with seal for end cap of a filtration system
US9533261B2 (en) 2012-06-28 2017-01-03 Evoqua Water Technologies Llc Potting method
US9868834B2 (en) 2012-09-14 2018-01-16 Evoqua Water Technologies Llc Polymer blend for membranes
US9764289B2 (en) 2012-09-26 2017-09-19 Evoqua Water Technologies Llc Membrane securement device
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods
US9815027B2 (en) 2012-09-27 2017-11-14 Evoqua Water Technologies Llc Gas scouring apparatus for immersed membranes

Also Published As

Publication number Publication date Type
JPH0451209B2 (en) 1992-08-18 grant

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Legal Events

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EXPY Cancellation because of completion of term