GB781400A - Improvements in or relating to ion-exchange resins - Google Patents
Improvements in or relating to ion-exchange resinsInfo
- 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
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
- 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
- C08F220/08—Anhydrides
-
- 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
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic 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.
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)
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 |
-
1955
- 1955-09-07 GB GB25652/55A patent/GB781400A/en not_active Expired
Cited By (5)
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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