Process for preparing improved weak acid resins and porous...

Details Process for preparing improved weak acid resins and porous... Process for preparing improved weak acid resins and porous...

C - Chemistry, Metallurgy

08

F

402/412

C08F 8/12 (2006.01) B01J 39/08 (2006.01)

Patent

CA 1269486

ABSTRACT OF THE DISCLOSURE Weak acid type cation exchange resins are prepared by subjecting to caustic hydrolysis a copoly- mer comprising in polymerized form (1) a major amount of a monoethylenically unsaturated monomer which is hydrolyzable under caustic conditions; (2) a minor amount of a monoethylenically unsaturated monomer which has a less hydrolyzable character than the hydrolyzable monomer, and (3) an effective amount of a crosslinking monomer. For example, copolymers prepared from methyl acrylate, butyl acrylate and divinylbenzene. The resin beads so prepared exhibit increased resistance to osmotic shock.

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