IT1267191B1 - POLYVINYLIDENE FLUORIDE MEMBRANE - Google Patents

POLYVINYLIDENE FLUORIDE MEMBRANE

Info

Publication number
IT1267191B1
IT1267191B1 IT94TO000998A ITTO940998A IT1267191B1 IT 1267191 B1 IT1267191 B1 IT 1267191B1 IT 94TO000998 A IT94TO000998 A IT 94TO000998A IT TO940998 A ITTO940998 A IT TO940998A IT 1267191 B1 IT1267191 B1 IT 1267191B1
Authority
IT
Italy
Prior art keywords
polyvinylidene fluoride
fluoride membrane
membrane
polyvinylidene
fluoride
Prior art date
Application number
IT94TO000998A
Other languages
Italian (it)
Inventor
Peter J Degen
Joannis P Sipsas
Gregory C Rapisarda
Joseph Gregg
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 claimed from US08/327,622 external-priority patent/US5736051A/en
Application filed by Pall Corp filed Critical Pall Corp
Publication of ITTO940998A0 publication Critical patent/ITTO940998A0/en
Publication of ITTO940998A1 publication Critical patent/ITTO940998A1/en
Application granted granted Critical
Publication of IT1267191B1 publication Critical patent/IT1267191B1/en

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
    • B01D67/0093—Chemical modification
    • B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
    • 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
    • B01D67/0095—Drying
    • 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
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • 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
    • B01D67/0093—Chemical modification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/38—Graft polymerization
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/18—Membrane materials having mixed charged functional groups
IT94TO000998A 1993-12-22 1994-12-07 POLYVINYLIDENE FLUORIDE MEMBRANE IT1267191B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17375593A 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
ITTO940998A0 ITTO940998A0 (en) 1994-12-07
ITTO940998A1 ITTO940998A1 (en) 1996-06-07
IT1267191B1 true IT1267191B1 (en) 1997-01-28

Family

ID=26869498

Family Applications (1)

Application Number Title Priority Date Filing Date
IT94TO000998A IT1267191B1 (en) 1993-12-22 1994-12-07 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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU738323B2 (en) * 1998-03-16 2001-09-13 Asahi Kasei Kabushiki Kaisha Microporous membrane
TW581709B (en) 1999-10-22 2004-04-01 Asahi Kasei Corp Heat-resistant microporous film
WO2003026779A1 (en) 2001-08-01 2003-04-03 Asahi Kasei Kabushiki Kaisha Multilayer microporous film
US7459085B2 (en) 2002-10-18 2008-12-02 Asahi Kasei Medical Co., Ltd. Microporous hydrophilic membrane
WO2007078878A1 (en) * 2005-12-30 2007-07-12 3M Innovative Properties Company Functionalized substrates
ITMI20060601A1 (en) 2006-03-30 2007-09-30 Gvs Spa PROCEDURE FOR THE PREPARATION OF MICROPOROSE MEMBRANES IN POLYVINYL DENFLUORIDE PVDF
JP5026888B2 (en) * 2007-08-14 2012-09-19 日東電工株式会社 Fluororesin molded body having hydrophilic polymer on surface and method for producing the same
JP5732719B2 (en) 2008-09-19 2015-06-10 東レ株式会社 Separation membrane and manufacturing method thereof
FR3089226B1 (en) * 2018-11-30 2021-08-06 Arkema France Process for preparing porous fluoropolymer films
CN114028956B (en) * 2021-11-18 2023-05-26 浙江机电职业技术学院 Reverse osmosis membrane and preparation method and application thereof

Family Cites Families (6)

* 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 DRY AND HYDROPHILIC SEMI-PERMEABLE MEMBRANES BASED ON VINYLIDENE POLYFLUORIDE
US5019260A (en) * 1986-12-23 1991-05-28 Pall Corporation Filtration media with low protein adsorbability
JP2898665B2 (en) * 1989-09-28 1999-06-02 テルモ株式会社 Plasma separation membrane and plasma separator using the same
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
EP0639106B1 (en) * 1992-05-06 1998-12-23 Costar Corporation Method for the preparation of a polyvinylidene fluoride microporous membrane

Also Published As

Publication number Publication date
JPH07265674A (en) 1995-10-17
ITTO940998A0 (en) 1994-12-07
DK144294A (en) 1995-06-23
SE9404249D0 (en) 1994-12-07
SE9404249L (en) 1995-06-23
JP3443735B2 (en) 2003-09-08
FR2713951B1 (en) 1996-12-06
ITTO940998A1 (en) 1996-06-07
GB2285010B (en) 1997-11-19
FR2713951A1 (en) 1995-06-23
ES2109146A1 (en) 1998-01-01
CA2138681A1 (en) 1995-06-23
NL9402134A (en) 1995-07-17
CH688612A5 (en) 1997-12-15
JP2001187325A (en) 2001-07-10
DE4445973B4 (en) 2006-06-29
CA2138681C (en) 2001-08-14
DE4445973A1 (en) 1995-06-29
ES2109146B1 (en) 1998-08-16
JP3178772B2 (en) 2001-06-25
GB2285010A (en) 1995-06-28
SE510792C2 (en) 1999-06-21
GB9424308D0 (en) 1995-01-18

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Legal Events

Date Code Title Description
0001 Granted