GB781400A - Improvements in or relating to ion-exchange resins - Google Patents

Improvements in or relating to ion-exchange resins

Info

Publication number
GB781400A
GB781400A GB25652/55A GB2565255A GB781400A GB 781400 A GB781400 A GB 781400A GB 25652/55 A GB25652/55 A GB 25652/55A GB 2565255 A GB2565255 A GB 2565255A GB 781400 A GB781400 A GB 781400A
Authority
GB
United Kingdom
Prior art keywords
ion
exchange resins
acrylic
pearl
relating
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
GB25652/55A
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.)
Roehm and Haas GmbH
Original Assignee
Roehm and Haas GmbH
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 Roehm and Haas GmbH filed Critical Roehm and Haas GmbH
Publication of GB781400A publication Critical patent/GB781400A/en
Expired legal-status Critical Current

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
    • C08F220/00Copolymers 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
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/08Anhydrides
    • 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
    • C08F220/00Copolymers 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
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04Acids; Metal salts or ammonium salts thereof
    • C08F220/06Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Ion-exchange resins in the form of substantially spherical particles are produced by the pearl copolymerization of acrylic and/or methacrylic acid and/or esters thereof, e.g. methyl acrylate, with a monomer containing more than one ethylenic linkage, e.g. divinyl benzene, and one or more anhydrides of polymerizable ethylenically unsaturated acids, e.g. acrylic and methacrylic acids. After preparation the copolymers are preferably subjected to alkaline hydrolysis of the anhydride linkages and any ester groups present. In an example the monomers are pearl polymerized in an aqueous solution of sodium chloride containing starch as dispersing agent and benzoyl peroxide as catalyst.
GB25652/55A 1954-09-13 1955-09-07 Improvements in or relating to ion-exchange resins Expired GB781400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE781400X 1954-09-13

Publications (1)

Publication Number Publication Date
GB781400A true GB781400A (en) 1957-08-21

Family

ID=6691318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25652/55A Expired GB781400A (en) 1954-09-13 1955-09-07 Improvements in or relating to ion-exchange resins

Country Status (1)

Country Link
GB (1) GB781400A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572115A2 (en) * 1992-05-29 1993-12-01 Rohm And Haas Company Crosslinked methacrylic anhydride copolymers
EP0620234A1 (en) * 1993-04-14 1994-10-19 Elf Atochem S.A. Process for preparing an aqueous dispersion pre-crosslinked with methacrylic acid anhydride

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572115A2 (en) * 1992-05-29 1993-12-01 Rohm And Haas Company Crosslinked methacrylic anhydride copolymers
EP0572115A3 (en) * 1992-05-29 1994-03-16 Rohm & Haas
US5639861A (en) * 1992-05-29 1997-06-17 Rohm And Haas Company Crosslinked methacrylic anhydride copolymers
EP0620234A1 (en) * 1993-04-14 1994-10-19 Elf Atochem S.A. Process for preparing an aqueous dispersion pre-crosslinked with methacrylic acid anhydride
FR2703997A1 (en) * 1993-04-14 1994-10-21 Atochem Elf Sa Process for the preparation of an aqueous dispersion pre-crosslinked with methacrylic anhydride

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