Ici Australia Limited

Commonwealth Scientific and Industrial Research Organisation

Brian A Bolto

Mervyn B Jackson

Kurt H Eppinger

Robert James Eldridge

David R Dixon

Ion exchange resin

Processes for making copolymers comprising treating a reaction mixture of a monomer and a substrate comprising ferromagnetic material located in a polymeric matrix so as to polymerize the monomer in a manner that it forms a polymeric shell grafted on to and surrounding the substrate, the polymerization of the monomer being initiated by adding the components of a redox system sequentially to the reaction mixture.

Ion exchange processes and products

A process for demineralizing an aqueous saline solution containing a deoxygenating agent by treating it with a thermally regenerable ion-exchange resin comprising a resinous material derived from a substituted diallylamine.

Process for demineralizing saline solutions

Ion exchange resins of the poly(allylamine) type which comprise an aralkyl radical or a saturated aliphatic radical, and which may be made by reacting an allylamine type polymer with an organic dihalo compound so as to crosslink it.

Ion exchange products and processes using crosslinked allylamine

A process of manufacturing an amphoteric composite resin which process comprises first polymerizing a dispersion comprising two liquid phases wherein the first liquid phase comprises at least one monomer containing a basic group or a precursor or derivative thereof and a crosslinking agent, and the second liquid phase comprises at least one monomer containing an acidic group or a precursor or derivative thereof and a crosslinking agent, and wherein the monomers are not of opposite charge, the two liquid phases are substantially immiscible and partitioning of the monomers from one liquid phase to the other is minimal, to form a composite polymeric material; and second treating the composite polymeric material to convert any acidic group precursor or derivative and any basic group precursor or derivative to the free acid and free base respectively to form an amphoteric composite resin.

Amphoteric composite resins and method of preparing same by

A method of manufacturing amphoteric resins. Polymeric beads are treated sequentially with two reagents of opposite acid/base character. The resins are useful in the desalination of water.

Thermally regenerable amphoteric ion exchangers prepared by sequential

A method for the preparation of composite particles having a specified range of particle size and comprising a finely divided, magnetic, particulate material embedded in a matrix of a linear polymeric material, which method comprises the steps of:

Preparation of polymer composites

In the known process of manufacturing an amphoteric polymeric composition which process comprises firstly polymerising a mixture comprising a monomer containing a basic group and a monomer containing an acidic group, the improvement of carrying out the process in the presence of a solvent system comprising formic acid.

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Mitcham, Australia

Brian A Bolto