GB720503A - Improvements in or relating to cation-exchange copolymers of the carboxylic type - Google Patents

Improvements in or relating to cation-exchange copolymers of the carboxylic type

Info

Publication number
GB720503A
GB720503A GB11133/52A GB1113352A GB720503A GB 720503 A GB720503 A GB 720503A GB 11133/52 A GB11133/52 A GB 11133/52A GB 1113352 A GB1113352 A GB 1113352A GB 720503 A GB720503 A GB 720503A
Authority
GB
United Kingdom
Prior art keywords
acrylic acid
butyl
per cent
sodium
iso
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
GB11133/52A
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.)
Roiim & Haas Co
Original Assignee
Roiim & Haas 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 Roiim & Haas Co filed Critical Roiim & Haas Co
Publication of GB720503A publication Critical patent/GB720503A/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
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
    • 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
    • C08F20/00—Homopolymers and 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
    • C08F20/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof
    • 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
    • C08F8/44—Preparation of metal salts or ammonium salts
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Cation exchange resins are prepared by proliferously copolymerizing at least 70 per cent of acrylic acid or an ester thereof with up to 30 per cent of a polyolefinic organic compound and, when using the ester, saponifying to obtain a popcorn copolymer containing at least 70 per cent of acrylic acid. The polymerization may be effected in bulk, solution or suspension and up to 0.5 per cent of a peroxide catalyst such as benzoyl, lauryl or stearoyl peroxide, t-butyl hydroperoxide or inorganic per-salts may be used. The copolymerization is carried out at a temperature of 20 DEG to 80 DEG C., in the substantial absence of oxygen, such as in an inert atmosphere, and in the presence of a seed of a similar or dissimilar proliferous copolymer. Acrylic acid esters specified are the methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, t-butyl, iso-amyl, cyclohexyl, octyl, lauryl, octadecyl, benzyl and phenylethyl esters. Polyolefinic compounds which act as popping agents are divinyl benzene, butadiene, isoprene, bimethallyl, biallyl, trivinylbenzene, dicyclopentadiene, dimethallyl ether and sulphide, vinyl allyl ether, diallyl maleate and 2-chloroallyl crotonate. Saponification is effected by aqueous or alcoholic bases such as sodium, potassium and quaternary ammonium hydroxides. Sodium salts may be converted to potassium salts by means of excess potassium salts and the sodium or potassium salts may be converted to acid resins with hydrochloric or sulphuric acid. The products are insoluble in solvents which dissolve the normal copolymers. They swell in water to form gelatinous suspensions suitable for use in sodium reduction therapy.ALSO:A therapeutic composition for the treatment of edema consists of an impalpable dispersion in an aqueous medium of an opaque, infusible, proliferous copolymer of (a) acrylic acid and (b) a polyolefinic organic compound in which the olefinic linkages are in the aliphatic portion of the molecule, said copolymer containing at least 70 per cent. proliferously copolymerized acrylic acid (see Group IV (a)) and being capable of exchanging cations. p
GB11133/52A 1951-05-12 1952-05-02 Improvements in or relating to cation-exchange copolymers of the carboxylic type Expired GB720503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US720503XA 1951-05-12 1951-05-12

Publications (1)

Publication Number Publication Date
GB720503A true GB720503A (en) 1954-12-22

Family

ID=22105252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11133/52A Expired GB720503A (en) 1951-05-12 1952-05-02 Improvements in or relating to cation-exchange copolymers of the carboxylic type

Country Status (2)

Country Link
DE (1) DE965166C (en)
GB (1) GB720503A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748051A1 (en) * 2005-07-29 2007-01-31 Lanxess Deutschland GmbH Monodisperse cation exchanger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2340111A (en) * 1942-07-03 1944-01-25 Gen Electric Process for removing cations from liquid media
US2340110A (en) * 1942-07-03 1944-01-25 Gen Electric Process for removing cations from liquid media

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748051A1 (en) * 2005-07-29 2007-01-31 Lanxess Deutschland GmbH Monodisperse cation exchanger

Also Published As

Publication number Publication date
DE965166C (en) 1957-06-06

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