Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Patent
1984-05-23
1986-04-29
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
525379, L08D 520
Patent
active
045858004
ABSTRACT:
Anion exchange resins having improved anion capacity are prepared using an improved process whereby the reaction medium can be re-employed. The process comprises contacting a haloalkylated copolymer particle with a compound capable of displacing the halogen of the haloalkyl functionality (e.g., dimethylamine) in a reaction medium (e.g., water). Optionally, an ionizable electrolyte is incorporated into the reaction medium. After preparation of anion exchange resins, the reaction medium containing ionizable electrolyte is re-employed in preparing anion exchange resins.
REFERENCES:
patent: 4207398 (1980-06-01), Riener
patent: 4321331 (1982-03-01), Widiger, Jr. et al.
patent: 4399235 (1983-08-01), Raley, Jr. et al.
Gibbs Marylu B.
Kott Alan C.
Messing Sheldon H.
Kulkosky Peter F.
Schofer Joseph L.
The Dow Chemical Company
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