JPH01144409A - Hydrophilic sequence copolymer of vinylidene fluoride and n-alkylacrylamide and its preparation - Google Patents

Hydrophilic sequence copolymer of vinylidene fluoride and n-alkylacrylamide and its preparation

Info

Publication number
JPH01144409A
JPH01144409A JP22671088A JP22671088A JPH01144409A JP H01144409 A JPH01144409 A JP H01144409A JP 22671088 A JP22671088 A JP 22671088A JP 22671088 A JP22671088 A JP 22671088A JP H01144409 A JPH01144409 A JP H01144409A
Authority
JP
Japan
Prior art keywords
vinylidene fluoride
copolymer
free radical
radical initiator
polymerizing
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.)
Pending
Application number
JP22671088A
Inventor
Robinson Donald Nellis
Humphrey Jr James Stevenson
Original Assignee
Pennwalt 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 US9842287A priority Critical
Application filed by Pennwalt Corp filed Critical Pennwalt Corp
Publication of JPH01144409A publication Critical patent/JPH01144409A/en
Application status is Pending legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F259/00Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
    • C08F259/08Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing fluorine
    • 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
    • B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/80Block polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F285/00Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
    • 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
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/40Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters

Abstract

PURPOSE: To prepare the copolymer having high water-permeability, useful as filer membranes, etc., by polymerizing vinylidene fluoride in an aqueous emulsion using a free radical initiator, and further polymerizing the resulting latex by adding N-substituted acrylamide, etc.,. and methacrylate.
CONSTITUTION: The objective copolymer is obtained by polymerizing vinylidene fluoride in an aqueous emulsion in the presence of a free radical initiator to obtain a vinylidene fluoride polymer latex, adding 1-30 wt.%, based on total weight of the added free radical initiator and the copolymer, of an amide having unsaturated terminal group such as N-lower alkyl acrylamide, N,N-di-lower alkyl acrylamide and 1-vinyl-2-pyrrolidinone and 0-29 wt.%, based on total weight of the added free radical initiator and the copolymer, of a lower alkyl methacrylate to 70-99 wt.% of the latex thus obtained, and polymerizing in the presence of the vinylidene fluoride polymer latex.
COPYRIGHT: (C)1989,JPO
JP22671088A 1987-09-18 1988-09-12 Hydrophilic sequence copolymer of vinylidene fluoride and n-alkylacrylamide and its preparation Pending JPH01144409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US9842287A true 1987-09-18 1987-09-18

Publications (1)

Publication Number Publication Date
JPH01144409A true JPH01144409A (en) 1989-06-06

Family

ID=22269207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22671088A Pending JPH01144409A (en) 1987-09-18 1988-09-12 Hydrophilic sequence copolymer of vinylidene fluoride and n-alkylacrylamide and its preparation

Country Status (3)

Country Link
JP (1) JPH01144409A (en)
BE (1) BE1001086A6 (en)
FR (1) FR2620712A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004092257A1 (en) * 2003-04-16 2006-07-06 株式会社クレハ Vinylidene fluoride resin porous membrane and method for producing the same
WO2016133206A1 (en) * 2015-02-20 2016-08-25 ダイキン工業株式会社 Hydrophilizing agent, composition containing hydrophilizing agent, and porous polymer film

Families Citing this family (45)

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US5169902A (en) * 1989-03-31 1992-12-08 Daikin Industries Ltd. Vibration-proof damping polymer material
DE4008063A1 (en) * 1990-03-14 1991-09-19 Behr Gmbh & Co Waermetauscher
EP0660849A1 (en) * 1992-09-18 1995-07-05 Minnesota Mining And Manufacturing Company Fluorochemical polymer systems
NZ336455A (en) 1996-12-20 2001-04-27 Usf Filtration & Separations A method for cleaning porous membranes using a gas bubble system
AUPR143400A0 (en) * 2000-11-13 2000-12-07 Usf Filtration And Separations Group Inc. Modified membranes
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
AUPS300602A0 (en) 2002-06-18 2002-07-11 U.S. Filter Wastewater Group, Inc. Methods of minimising the effect of integrity loss in hollow fibre membrane modules
CA2501628C (en) 2002-10-10 2012-12-04 U.S. Filter Wastewater Group, Inc. A filtration and backwashing arrangement for membrane modules
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
AU2003903507A0 (en) 2003-07-08 2003-07-24 U. S. Filter Wastewater Group, Inc. Membrane post-treatment
US8268176B2 (en) 2003-08-29 2012-09-18 Siemens Industry, Inc. Backwash
NZ546959A (en) 2003-11-14 2008-03-28 Siemens Water Tech Corp Improved cleaning method for a porous membrane filtration module
WO2005092799A1 (en) 2004-03-26 2005-10-06 U.S. Filter Wastewater Group, Inc. Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
AU2005240524C1 (en) 2004-04-22 2009-12-24 Evoqua Water Technologies Llc Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials
CA2571502A1 (en) 2004-07-05 2006-01-12 U.S. Filter Wastewater Group, Inc. Hydrophilic membranes
WO2006017911A1 (en) 2004-08-20 2006-02-23 Siemens Water Technologies Corp. Square mbr manifolding system
EP1807180B1 (en) 2004-09-07 2013-02-13 Siemens Industry, Inc. Reduction of backwash liquid waste
NZ553742A (en) 2004-09-14 2010-09-30 Siemens Water Tech Corp Methods and apparatus for removing solids from a membrane module
WO2006029465A1 (en) 2004-09-15 2006-03-23 Siemens Water Technologies Corp. Continuously variable aeration
KR20070089981A (en) 2004-12-03 2007-09-04 지멘스 워터 테크놀로지스 코포레이션 Membrane post treatment
JP2008525167A (en) 2004-12-24 2008-07-17 シーメンス・ウォーター・テクノロジーズ・コーポレーション Simple gas cleaning method and apparatus in the technical field
CA2591408C (en) 2004-12-24 2015-07-21 Siemens Water Technologies Corp. Cleaning in membrane filtration systems
CN101184548B (en) 2005-04-29 2011-10-05 西门子水技术公司 Chemical clean for membrane filter
CA2614498A1 (en) 2005-07-14 2007-01-18 Siemens Water Technologies Corp. Monopersulfate treatment of membranes
WO2007022576A1 (en) 2005-08-22 2007-03-01 Siemens Water Technologies Corp. An assembly for water filtration using a tube manifold to minimise backwash
WO2007044415A2 (en) 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Method and apparatus for treating wastewater
WO2008051546A2 (en) 2006-10-24 2008-05-02 Siemens Water Technologies Corp. Infiltration/inflow control for membrane bioreactor
WO2008123972A1 (en) 2007-04-02 2008-10-16 Siemens Water Technologies Corp. Improved infiltration/inflow control for membrane bioreactor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
MY162127A (en) 2007-05-29 2017-05-31 Evoqua Water Tech Llc Membrane cleaning with pulsed airlift pump
WO2010009518A1 (en) 2008-07-24 2010-01-28 Siemens Water Technologies Corp. Frame system for membrane filtration modules
WO2010142673A1 (en) 2009-06-11 2010-12-16 Siemens Water Technologies Corp. Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
US9914097B2 (en) 2010-04-30 2018-03-13 Evoqua Water Technologies Llc Fluid flow distribution device
EP2618916A4 (en) 2010-09-24 2016-08-17 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
JP5701131B2 (en) * 2011-04-05 2015-04-15 株式会社クレハ Vinylidene fluoride copolymer and use of the copolymer
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
EP2866922B1 (en) 2012-06-28 2018-03-07 Evoqua Water Technologies LLC A potting method
AU2013315547A1 (en) 2012-09-14 2015-02-26 Evoqua Water Technologies Llc A polymer blend for membranes
AU2013231145B2 (en) 2012-09-26 2017-08-17 Evoqua Water Technologies Llc Membrane potting methods
WO2014052071A1 (en) 2012-09-26 2014-04-03 Evoqua Water Technologies Llc Membrane securement device
KR20150059788A (en) 2012-09-27 2015-06-02 에보쿠아 워터 테크놀로지스 엘엘씨 Gas scouring apparatus for immersed membranes
EP3052221A4 (en) 2013-10-02 2017-06-28 Evoqua Water Technologies LLC A method and device for repairing a membrane filtration module
WO2017011068A1 (en) 2015-07-14 2017-01-19 Evoqua Water Technologies Llc Aeration device for filtration system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004092257A1 (en) * 2003-04-16 2006-07-06 株式会社クレハ Vinylidene fluoride resin porous membrane and method for producing the same
US7947790B2 (en) 2003-04-16 2011-05-24 Kureha Corporation Porous film of vinylidene fluoride resin and method for producing same
JP4785528B2 (en) * 2003-04-16 2011-10-05 株式会社クレハ Vinylidene fluoride resin porous membrane and method for producing the same
WO2016133206A1 (en) * 2015-02-20 2016-08-25 ダイキン工業株式会社 Hydrophilizing agent, composition containing hydrophilizing agent, and porous polymer film
CN107250179A (en) * 2015-02-20 2017-10-13 大金工业株式会社 Hydrophilic agent, the composition comprising hydrophilic agent and high-molecular porous plasma membrane
JPWO2016133206A1 (en) * 2015-02-20 2017-11-24 ダイキン工業株式会社 Hydrophilizing agent, composition containing hydrophilizing agent, and polymer porous membrane

Also Published As

Publication number Publication date
FR2620712A1 (en) 1989-03-24
BE1001086A6 (en) 1989-07-04

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