Sulphonation method for manufacture of a cation exchange resin

Details Sulphonation method for manufacture of a cation exchange resin Sulphonation method for manufacture of a cation exchange resin

1978-02-02

1980-06-24

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

525343, C08F 836, B01D 1504

Patent

active

042095921

ABSTRACT:
A process of sulfonating a crosslinked copolymer to yield a cation exchange resin using liquid sulfur trioxide dissolved in a chlorinated hydrocarbon solvent as the sulfonating reagent.

REFERENCES:
patent: 2763634 (1956-09-01), Teot
patent: 2836578 (1958-05-01), Teot
patent: 2962454 (1960-11-01), McRae et al.
patent: 3072618 (1963-01-01), Turbak
patent: 3252921 (1966-05-01), Hanson et al.
patent: 3549729 (1970-12-01), DiPietro

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