Weakly acidic cation exchange resin and process for producing sa

Details Weakly acidic cation exchange resin and process for producing sa Weakly acidic cation exchange resin and process for producing sa

1981-07-06

1982-09-21

Hamrock, William F.

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

Synthetic resins

Ion-exchange polymer or process of preparing

521 25, 521 27, B01J 4112, C08F 1606

Patent

active

043507735

ABSTRACT:
A weakly acidic cation exchange resin which is obtainable by a reaction of glyoxylic acid and a polyvinyl alcohol cross-linked by cross-linking groups each containing two or more carbon atoms, and has an exchange capacity of 3 meq/g or greater and a swelling volume of 10 ml/g or smaller, as well as a process for producing such cation exchange resin.

REFERENCES:
patent: 3203918 (1965-08-01), Goldberg et al.
patent: 3226380 (1965-12-01), Knight
patent: 3234160 (1966-02-01), Matsubayashi et al.
patent: 3275576 (1966-09-01), Flodin et al.
patent: 3640734 (1972-02-01), Oppenheimer et al.
patent: 4306031 (1981-12-01), Itagaki et al.

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