Cupric salts used in redox polymerization of ethylene chlorotrifluoroethylene copolymer
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United States of America Patent
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Sep 4, 1984
Grant Date -
N/A
app pub date -
Dec 14, 1981
filing date -
Dec 14, 1981
priority date (Note) -
Expired
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Abstract
The present invention is an improved process for the aqueous copolymerization of ethylene and chlorotrifluoroethylene in the presence of a catalyst. The catalyst comprises an oxidizing agent and a reducing agent with a sufficient amount of a water soluble buffer compound to maintain the pH from above 7 to about 10. The improvement comprises the addition of from 0.1 to 10 parts per million preferably 1 to 10 parts per million by weight of a cupric cation based on the weight of the aqueous medium.
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