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GB2285010B - Polyvinylidene fluoride membrane - Google Patents

Polyvinylidene fluoride membrane

Info

Publication number
GB2285010B
GB2285010B GB9424308A GB9424308A GB2285010B GB 2285010 B GB2285010 B GB 2285010B GB 9424308 A GB9424308 A GB 9424308A GB 9424308 A GB9424308 A GB 9424308A GB 2285010 B GB2285010 B GB 2285010B
Authority
GB
UNITED KINGDOM
Prior art keywords
polyvinylidene fluoride
fluoride membrane
membrane
polyvinylidene
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
GB9424308A
Other versions
GB9424308D0 (en
GB2285010A (en
Inventor
Peter J Degen
Joseph A Gregg
Gregory C Rapisarda
Ioannis P Sipsas
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.)
Pall Corp
Original Assignee
Pall 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
Priority to US17375593A priority Critical
Priority to US08/327,622 priority patent/US5736051A/en
Application filed by Pall Corp filed Critical Pall Corp
Publication of GB9424308D0 publication Critical patent/GB9424308D0/en
Publication of GB2285010A publication Critical patent/GB2285010A/en
Application granted granted Critical
Publication of GB2285010B publication Critical patent/GB2285010B/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • 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
    • B01D67/0081After-treatment of organic or inorganic membranes
    • B01D67/0095Drying
    • 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
    • B01D67/0081After-treatment of organic or inorganic membranes
    • B01D67/0093Chemical modification
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/12Specific ratios of components used
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/30Cross-linking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/38Graft polymerization
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/18Membrane materials having mixed charged functional groups
GB9424308A 1993-12-22 1994-12-01 Polyvinylidene fluoride membrane Expired - Lifetime GB2285010B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17375593A true 1993-12-22 1993-12-22
US08/327,622 US5736051A (en) 1993-12-22 1994-10-24 Polyvinylidene fluoride membrane and method for removing viruses from solutions

Publications (3)

Publication Number Publication Date
GB9424308D0 GB9424308D0 (en) 1995-01-18
GB2285010A GB2285010A (en) 1995-06-28
GB2285010B true GB2285010B (en) 1997-11-19

Family

ID=26869498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9424308A Expired - Lifetime GB2285010B (en) 1993-12-22 1994-12-01 Polyvinylidene fluoride membrane

Country Status (11)

Country Link
JP (2) JP3178772B2 (en)
CA (1) CA2138681C (en)
CH (1) CH688612A5 (en)
DE (1) DE4445973B4 (en)
DK (1) DK144294A (en)
ES (1) ES2109146B1 (en)
FR (1) FR2713951B1 (en)
GB (1) GB2285010B (en)
IT (1) IT1267191B1 (en)
NL (1) NL9402134A (en)
SE (1) SE510792C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2322855A1 (en) * 1998-03-16 1999-09-23 Toshinori Koizumi Microporous membrane
TW581709B (en) 1999-10-22 2004-04-01 Asahi Kasei Corp Heat-resistant microporous film
CA2456170C (en) 2001-08-01 2007-09-25 Asahi Kasei Kabushiki Kaisha Multilayer microporous membrane
CA2502577C (en) 2002-10-18 2008-11-04 Asahi Kasei Pharma Corporation Hydrophilic microporous membrane
JP2009522405A (en) * 2005-12-30 2009-06-11 スリーエム イノベイティブ プロパティズ カンパニー Methods of making functionalized substrates
ITMI20060601A1 (en) 2006-03-30 2007-09-30 Gvs Spa Process for the preparation of microporous membranes in polyvinylidene fluoride PVDF
JP5026888B2 (en) * 2007-08-14 2012-09-19 日東電工株式会社 Fluorine-containing resin molded article and a method of manufacturing a hydrophilic polymer on the surface
CN102159305B (en) 2008-09-19 2015-08-19 东丽株式会社 Separation membrane and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420765A2 (en) * 1989-09-28 1991-04-03 Terumo Kabushiki Kaisha Blood plasma-separating membrane and blood plasma separator using the membrane
WO1993022034A1 (en) * 1992-05-06 1993-11-11 Costar Corporation Polyvinylidene fluoride microporous membrane and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600265B1 (en) * 1986-06-20 1991-09-06 Rhone Poulenc Rech semi-permeable membranes dryable and has hydrophilic basic polyvinylidene fluoride
US5019260A (en) * 1986-12-23 1991-05-28 Pall Corporation Filtration media with low protein adsorbability
US5079272A (en) * 1989-11-30 1992-01-07 Millipore Corporation Porous membrane formed from interpenetrating polymer network having hydrophilic surface
US5198505A (en) * 1991-04-11 1993-03-30 Pall Corporation Uniform polyvinylidene difluoride membranes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420765A2 (en) * 1989-09-28 1991-04-03 Terumo Kabushiki Kaisha Blood plasma-separating membrane and blood plasma separator using the membrane
WO1993022034A1 (en) * 1992-05-06 1993-11-11 Costar Corporation Polyvinylidene fluoride microporous membrane and method

Also Published As

Publication number Publication date
GB9424308D0 (en) 1995-01-18
SE510792C2 (en) 1999-06-21
DE4445973A1 (en) 1995-06-29
CA2138681A1 (en) 1995-06-23
SE9404249D0 (en) 1994-12-07
ITTO940998D0 (en) 1994-12-07
ES2109146B1 (en) 1998-08-16
DE4445973B4 (en) 2006-06-29
CH688612A5 (en) 1997-12-15
CA2138681C (en) 2001-08-14
FR2713951B1 (en) 1996-12-06
ITTO940998A1 (en) 1995-06-22
JP2001187325A (en) 2001-07-10
IT1267191B1 (en) 1997-01-28
JP3178772B2 (en) 2001-06-25
SE9404249L (en) 1995-06-23
DK144294A (en) 1995-06-23
NL9402134A (en) 1995-07-17
JP3443735B2 (en) 2003-09-08
FR2713951A1 (en) 1995-06-23
GB2285010A (en) 1995-06-28
JPH07265674A (en) 1995-10-17
ES2109146A1 (en) 1998-01-01

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20141130