ION EXCHANGE RESINS

1460462 Anion exchange resins ROHM & HAAS CO 18 Jan 1974 [5 Feb 1973] 02406/74 Heading C3P Anion exchange resins containing units of one of the following formulae wherein R1, B2 and R3 are hydrogen, C 1-4 alkyl or C 1-4 hydroxyalkyl, R4 is H or CH 3 and X- is an anion, are prepared by, respectiv...

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Bibliographische Detailangaben
Hauptverfasser:	DAVID HENRY CLEMENS, RAYMOND JOSEPH LANGE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	1460462 Anion exchange resins ROHM & HAAS CO 18 Jan 1974 [5 Feb 1973] 02406/74 Heading C3P Anion exchange resins containing units of one of the following formulae wherein R1, B2 and R3 are hydrogen, C 1-4 alkyl or C 1-4 hydroxyalkyl, R4 is H or CH 3 and X- is an anion, are prepared by, respectively, (I) reductively aminating a bead copolymer of a major amount of acrolein and/or methacrolein and a minor amount of a cross-linking monomer, or (II) quaternizing the product of (I). In examples, acrolein/divinyl benzene and acrolein / divinyl benzene / diethyleneglycol divinylether copolymers are reductively aminated with formic acid and dimethylamine, and the product is quaternized with methyl chloride. Numerous alternative cross-linking monomers are mentioned, and other co-monomers may also be present.