Process for preparing improved weak acid resins and porous weak

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

1985-01-28

1986-09-30

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

525369, C08D 520, C08F 812

Patent

active

046147519

ABSTRACT:
Weak acid type cation exchange resins are prepared by subjecting to caustic hydrolysis a copolymer comprising in polymerized form a major amount of an acrylate monomer which is hydrolyzable under caustic conditions; a minor amount of an acrylate monomer which has a less hydrolyzable character than the hydrolyzable monomer, and 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.

REFERENCES:
patent: 4062817 (1977-12-01), Westerman
patent: 4524186 (1985-06-01), Nagase

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