Cation exchanger with sponge structure

Abstract

Abstract 11. A CATION EXCHANGE RESIN CONSISTING OF A WATERINSOLUBLE MATRIX AND CATION EXCHANGE GROUP BONDED THERETO WHICH ARE SELECTED FROM THE GROUP CONSISTING OF SULFONIC ACID, CARBOXYLIC ACID, PHOSPHORIC ACID, AND PHOSPHONIC ACID GROUPS, WHEREIN AS SAID MATRIX THERE IS EMPLOYED A SOLID OPAQUE COPOLYMER OF SPONGY STRUCTURE WHICH IS PERMEATED BY SMALL VEINS INTO WHICH LIQUIDS ARE ABLE TO PENETRATE, WHICH MATRIX IS PREPARED BY COPOLYMERIZING A MIXTURE CONSISTING ESSENTIALLY OF (1) A MONOETHYLENICALLY UNSATURATED MONOMER SELECTED FROM THE GROUP CONSISTING OF A MONOVINYL CARBOXYLIC AROMATIC COMPOUND, A MONOETHYLENICALLY UNSATURATED CARBOXYLIC ACID, A MONOESTER OF A LOWER ALIPHATIC ALCOHOL AND A MONOETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID, A COMPLETELY ESTERIFIED MONOETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID, AND AN ANHYDRIDE OF A MONOETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID, WITH (2) A POLYETHYLENICALLY UNSATURATED MONOMER SELECTED FROM THE GROUP CONSISTING OF A POLYVINYL CARBOCYCLIC AROMATIC COMPOUND, AN ESTER OF A DIHYDRIC ALCOHOL AND AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID, DIALLYL MALEATE, DIVINYL ETHER, AND DIVINYL KETONE, THE AFORESAID COPOLYMERIZATION BEING CONDUCTED WHILE THE MONOMERS ARE DISSOLVED IN 10 TO 300% BY WEIGHT, BASED ON MONOMER WEIGHT, OF AN ORGANIC LIQUID WHICH IS A SOLVENT FOR SAID MONOMERS BUT IS UNABLE TO DISSOLVE LINEAR CARBOCYCLIC AROMATIC VINYL POLYMERS.

Inventors

• 👤 Herbert Corte
• 👤 Erhard Meier
• 👤 Hans Seifert

Bibliographic Details