CH618611A5 - - Google Patents

Download PDF

Info

Publication number
CH618611A5
CH618611A5 CH379775A CH379775A CH618611A5 CH 618611 A5 CH618611 A5 CH 618611A5 CH 379775 A CH379775 A CH 379775A CH 379775 A CH379775 A CH 379775A CH 618611 A5 CH618611 A5 CH 618611A5
Authority
CH
Switzerland
Prior art keywords
polymer
membrane
carbon atoms
vinyl acetate
lower alkyl
Prior art date
Application number
CH379775A
Other languages
German (de)
English (en)
Inventor
Seymour Shandel Kremen
Gerald Edward Foreman
John Melvin Chirrick
Original Assignee
Universal Oil Prod Co
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 Universal Oil Prod Co filed Critical Universal Oil Prod Co
Publication of CH618611A5 publication Critical patent/CH618611A5/de

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
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/905—Hydrophilic or hydrophobic cellular product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
CH379775A 1974-03-27 1975-03-25 CH618611A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455461A US3877978A (en) 1974-03-27 1974-03-27 Semipermeable membranes

Publications (1)

Publication Number Publication Date
CH618611A5 true CH618611A5 (fr) 1980-08-15

Family

ID=23808896

Family Applications (1)

Application Number Title Priority Date Filing Date
CH379775A CH618611A5 (fr) 1974-03-27 1975-03-25

Country Status (13)

Country Link
US (1) US3877978A (fr)
JP (1) JPS5313431B2 (fr)
AU (1) AU498753B2 (fr)
BE (1) BE826745A (fr)
CA (1) CA1060285A (fr)
CH (1) CH618611A5 (fr)
DK (1) DK146615C (fr)
FR (1) FR2265810B1 (fr)
GB (1) GB1502163A (fr)
IL (1) IL46824A (fr)
IN (1) IN143733B (fr)
IT (1) IT1032462B (fr)
ZA (1) ZA751598B (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957651A (en) * 1971-12-16 1976-05-18 Chemical Systems Incorporated Microporous polyester membranes and polymer assisted phase inversion process for their manufacture
US4478717A (en) * 1980-08-11 1984-10-23 Toray Industries, Inc. Semipermeable membrane treated with modified vinyl polymer
JPS59115704A (ja) * 1982-12-24 1984-07-04 Toray Ind Inc 半透膜の処理法
DE3341113A1 (de) * 1983-11-12 1985-05-23 Akzo Gmbh, 5600 Wuppertal Dialysemembran mit verbesserter vertraeglichkeit
US4704324A (en) * 1985-04-03 1987-11-03 The Dow Chemical Company Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
US4824574A (en) * 1986-04-28 1989-04-25 The Dow Chemical Company Novel water softening process using membranes
US4812270A (en) * 1986-04-28 1989-03-14 Filmtec Corporation Novel water softening membranes
US4765897A (en) * 1986-04-28 1988-08-23 The Dow Chemical Company Polyamide membranes useful for water softening
US4927540A (en) * 1986-09-04 1990-05-22 The Dow Chemical Company Ionic complex for enhancing performance of water treatment membranes
US4894165A (en) * 1987-07-20 1990-01-16 The Dow Chemical Company Rejection enhancing coatings for reverse osmosis membranes
US4909943A (en) * 1987-07-20 1990-03-20 The Dow Chemical Company Rejection enhancing coatings for reverse osmosis membranes
US4828700A (en) * 1987-07-20 1989-05-09 The Dow Chemical Company Rejection enhancing coatings for reverse osmosis membranes
US5258126A (en) * 1989-09-12 1993-11-02 Pall Corporation Method for obtaining platelets
US5360545A (en) * 1989-09-12 1994-11-01 Pall Corporation Filter for obtaining platelets
US5266219A (en) * 1989-12-28 1993-11-30 Pall Corporation Device and method for separating plasma from blood
US5985043A (en) * 1997-07-21 1999-11-16 Miguel Albert Capote Polymerizable fluxing agents and fluxing adhesive compositions therefrom
US5985456A (en) * 1997-07-21 1999-11-16 Miguel Albert Capote Carboxyl-containing polyunsaturated fluxing adhesive for attaching integrated circuits
US6017634A (en) * 1997-07-21 2000-01-25 Miguel Albert Capote Carboxyl-containing polyunsaturated fluxing agent and carboxyl-reactive neutralizing agent as adhesive
JP4868108B2 (ja) 2004-10-18 2012-02-01 栗田工業株式会社 透過膜の阻止率向上剤、阻止率向上方法、透過膜及び水処理方法
JP5151152B2 (ja) * 2006-03-29 2013-02-27 栗田工業株式会社 ナノろ過膜又は逆浸透膜の阻止率向上剤、阻止率向上方法、ナノろ過膜又は逆浸透膜、水処理方法、及び、水処理装置
US9216385B2 (en) 2010-10-04 2015-12-22 Saudi Arabian Oil Company Application of rejection enhancing agents (REAs) that do not have cloud point limitations on desalination membranes
WO2021079867A1 (fr) * 2019-10-24 2021-04-29 三菱パワー株式会社 Agent de restauration de performance de dessalement pour membrane à base d'acétate de cellulose et procédé de restauration de performance de dessalement d'une membrane à base d'acétate de cellulose
CN112473391A (zh) * 2020-12-23 2021-03-12 安徽昂可特膜科技有限公司 一种反渗透膜缺陷的修复方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593540A (en) * 1945-09-01 1952-04-22 American Viscose Corp Semipermeable membrane
US2973285A (en) * 1958-12-31 1961-02-28 Dow Chemical Co Preparation of coated articles using gellable aqueous cationic polymer coating compositions and printing inks
US3236685A (en) * 1962-06-20 1966-02-22 Eastman Kodak Co Process for treating textile fibers and other shaped products with coatings
US3373056A (en) * 1964-08-28 1968-03-12 Aerojet General Co Modifying cellulose ester osmotic membranes
US3503789A (en) * 1967-05-05 1970-03-31 Atomic Energy Commission Method of making a dynamic solute-rejecting membrane
US3676203A (en) * 1970-08-07 1972-07-11 Us Interior Semipermeable membranes

Also Published As

Publication number Publication date
DE2512982B2 (de) 1976-10-21
IL46824A (en) 1978-01-31
FR2265810B1 (fr) 1978-02-03
ZA751598B (en) 1976-02-25
JPS50140378A (fr) 1975-11-11
DE2512982A1 (de) 1975-10-09
DK146615C (da) 1984-04-30
AU7922675A (en) 1976-09-23
DK133275A (fr) 1975-09-28
IL46824A0 (en) 1975-05-22
DK146615B (da) 1983-11-21
US3877978A (en) 1975-04-15
FR2265810A1 (fr) 1975-10-24
CA1060285A (fr) 1979-08-14
BE826745A (fr) 1975-07-16
JPS5313431B2 (fr) 1978-05-10
IN143733B (fr) 1978-01-21
IT1032462B (it) 1979-05-30
GB1502163A (en) 1978-02-22
AU498753B2 (en) 1979-03-22

Similar Documents

Publication Publication Date Title
CH618611A5 (fr)
DE3112937C2 (de) Verfahren zur Herstellung einer selektiv durchlässigen Polyimidmembran
DE2236663A1 (de) Vernetzte interpolymermembran mit fixierter ladung und verfahren zu deren herstellung
DE3043766A1 (de) Verfahren zur wiedergewinnung von carbonsaeuren
DE1904941A1 (de) Polyoxycarbonsaeuren
DE2422365A1 (de) Fotopolymerisierbare polymere mit anhydrid enthaltenden gruppen
DE2727755A1 (de) Ionisch modifizierte cellulosematerialien
DE2621519A1 (de) Verfahren zur herstellung von membranen zur osmotischen trennung
DE2009336A1 (de) Halbdurchlassige Membran zur Entsalzung von Brack und Meerwasser mittels Hyperfil tration und Verfahren zu ihrer Herstellung
DE2939071A1 (de) Modifizierte membran zur membranfiltration
DE2427088A1 (de) Verfahren zur beseitigung der im abwasser enthaltenen alpha, beta-aethylenischungesaettigten aldehyde oder ketone
DE1570407A1 (de) Verfahren zur Herstellung der waessrigen Loesung eines Flockungsmittels hohen Molekulargewichtes vom Polyakrylamid-Typ
DE2505254A1 (de) Poroese membran und verfahren zu ihrer herstellung
DE2409951A1 (de) Ionenaustauschermaterial
DE2323189C2 (de) Verfahren zum Herstellen von löslichen Polyionkomplexen
DE2505255A1 (de) Verfahren zur abtrennung von metallionen
DE2423593C2 (de) Phosphorylierte Celluloseacetatmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung
DE2300497A1 (de) Asymmetrische celluloseester-umkehrosmosemembran
DE2512982C3 (de) Verfahren zur Verbesserung der Abweiseleistung von halbdurchlässigen Membranen
DE2352332A1 (de) Verfahren zur modifizierung von formkoerpern aus polyaminosaeuren
DE3336129C2 (fr)
DE2120493A1 (de) Verfahren zur Herstellung eines Trennungsmediums für die Gelfiltration
DE3019555C2 (fr)
CH634801A5 (de) Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen.
DE2051631A1 (de) Verfahren zur Abtrennung elektrisch aufgeladener Teilchen bzw polarer Moleküle aus Losungsmitteln

Legal Events

Date Code Title Description
PL Patent ceased