Process for the chloromethylation of polymers for the production

Details Process for the chloromethylation of polymers for the production Process for the chloromethylation of polymers for the production

1979-01-12

1980-09-30

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

525344, C08F 824

Patent

active

042256771

ABSTRACT:
Improved process for the chloromethylation of cross-linked vinylaromatic polymers and copolymers wherein a chlorine generator is incorporated into the reactants and a metallic chloride replaces part or all of the sulfuric acid used in forming the chloromethylating complex. The chloromethylated polymer may be further functionalized to produce an ion-exchange resin.

REFERENCES:
patent: 3425990 (1969-02-01), Corte et al.
patent: 3533969 (1970-10-01), Bufton
patent: 3995094 (1976-11-01), Crosby et al.

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