Method for the epoxidation of unsaturated polymers
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United States of America Patent
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Aug 4, 1998
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N/A
app pub date -
Dec 23, 1996
filing date -
Dec 23, 1996
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Expired
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Abstract
A process for epoxidizing unsaturated polymers comprising reacting an unsaturated polymer with hydrogen peroxide in the presence of (a) tungstic acid or its metal salts, (b) phosphoric acid or its metal salts, and (c) at least one phase transfer catalyst.
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