| 摘要 |
An ion-exchange composition is disclosed comprising synthetic resin support particles, dispersant capable of suspending the support particles in an aqueous medium to inhibit or prevent agglomeration, and fine synthetic resin layering particles. The composition can be formed by contacting a suitable dispersant with monomer in a suitable aqueous solution under conditions whereby the monomer polymerizes to form resin support particles having dispersant irreversibly attached to those particles by either covalent bonding or permanent physical entanglement. The complex can then be mixed in aqueous slurry form with fine resin layering particles under conditions suitable to form a resin support particle-dispersant resin layering particle complex in which the resin layering particles are irreversibly attached to the dispersant. The dispersant, in effect, forms an irreversible bridge between the support and layering particles. |
