GB997290A - Cation exchange resins - Google Patents

Cation exchange resins

Info

Publication number
GB997290A
GB997290A GB968062A GB968062A GB997290A GB 997290 A GB997290 A GB 997290A GB 968062 A GB968062 A GB 968062A GB 968062 A GB968062 A GB 968062A GB 997290 A GB997290 A GB 997290A
Authority
GB
United Kingdom
Prior art keywords
divinyl
exchange resins
acrylonitrile
cation exchange
monomer
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
Application number
GB968062A
Inventor
Hiroshi Kuyama
Yoichi Utsunomiya
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.)
SASHICHIRO NAKANISI
Original Assignee
SASHICHIRO NAKANISI
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 SASHICHIRO NAKANISI filed Critical SASHICHIRO NAKANISI
Publication of GB997290A publication Critical patent/GB997290A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/34—Introducing sulfur atoms or sulfur-containing groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/16—Organic material
    • B01J39/18—Macromolecular compounds
    • B01J39/20—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/42—Nitriles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment

Abstract

Cation-exchange resins are made by sulphonating a copolymer obtained by polymerizing in the absence of a preformed polymer (a) acrylonitrile and/or methacrylonitrile, (b) at least one monoethylenic aromatic monomer, and (c) at least one polyethylenic cross-linking monomer, e.g. aromatic compounds containing two or more vinyl groups, polyallyl esters, polyhydric alcohol acrylates, diacrylamides, divinyl ketone and divinyl sulphide. The examples describe the copolymerization of acrylonitrile styrene and divinyl benzene in aqueous suspension with the aid of benzoyl peroxide, followed by the sulphonation of the resulting copolymers with sulphuric acid.
GB968062A 1961-03-01 1962-03-13 Cation exchange resins Expired GB997290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP725461 1961-03-01

Publications (1)

Publication Number Publication Date
GB997290A true GB997290A (en) 1965-07-07

Family

ID=11660876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB968062A Expired GB997290A (en) 1961-03-01 1962-03-13 Cation exchange resins

Country Status (4)

Country Link
CH (1) CH410424A (en)
DE (2) DE1227431B (en)
GB (1) GB997290A (en)
NL (2) NL125475C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625328A1 (en) * 1975-06-05 1977-04-28 Ceskoslovenska Akademie Ved METHOD OF PRODUCING AMPHOTIC ION EXCHANGERS BY SUBSTITUTION OF HYDROPHILIC POLYMER
US6750259B2 (en) 2002-07-08 2004-06-15 Bayer Aktiengesellschaft Process for preparing gel-type cation exchangers
WO2013101629A1 (en) * 2011-12-28 2013-07-04 Dow Global Technologies Llc Strong acid catalyst composition

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1304497A (en) 1995-12-21 1997-07-17 Iab Ionenaustauscher Gmbh Bitterfeld Process for the preparation of very acidic cation exchangers
DE19644227A1 (en) * 1996-10-24 1998-04-30 Bayer Ag Process for the production of low-exhaustion cation exchangers
DE10050680A1 (en) * 2000-10-13 2002-04-18 Bayer Ag Production of cation exchange resin beads for use e.g. in water purification, involves suspension polymerisation of styrene and divinylbenzene in presence of acrylonitrile followed by sulfonation in absence of swelling agent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070382B (en) * 1959-12-03 VEB Farbenfabrik Wolfen, Wolfen (Kr. Bitterfeld) Process for the production of exchanger polymers
US2809959A (en) * 1957-10-15 Preparation of high-viscosity sulfona-
FR960585A (en) * 1942-08-11 1950-04-20
US2759910A (en) * 1951-11-06 1956-08-21 Distillers Co Yeast Ltd Polymerised compositions
US2829128A (en) * 1953-12-07 1958-04-01 Monsanto Chemicals Clear terpolymers
US2821522A (en) * 1954-11-24 1958-01-28 Dow Chemical Co Preparation of water-soluble sulfonation products of polymeric ar-vinyltoluenes
GB784028A (en) * 1954-11-24 1957-10-02 Dow Chemical Co Preparation of high-viscosity sulphonation products having a viscosity stability
US2813087A (en) * 1955-04-14 1957-11-12 Dow Chemical Co Preparation of water-soluble sulfonation products from polymers of arvinyltoluene and acrylonitrile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625328A1 (en) * 1975-06-05 1977-04-28 Ceskoslovenska Akademie Ved METHOD OF PRODUCING AMPHOTIC ION EXCHANGERS BY SUBSTITUTION OF HYDROPHILIC POLYMER
US6750259B2 (en) 2002-07-08 2004-06-15 Bayer Aktiengesellschaft Process for preparing gel-type cation exchangers
WO2013101629A1 (en) * 2011-12-28 2013-07-04 Dow Global Technologies Llc Strong acid catalyst composition
US9968920B2 (en) 2011-12-28 2018-05-15 Rohm And Haas Company Strong acid catalyst composition

Also Published As

Publication number Publication date
DE1227431B (en) 1966-10-27
CH410424A (en) 1966-03-31
NL275074A (en)
NL125475C (en)
DE1233143B (en) 1967-01-26

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