Preparation of tris(2-hydroxyethyl)isocyanurate (THEIC)
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United States of America Patent
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Apr 4, 2000
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N/A
app pub date -
Feb 10, 1998
filing date -
Feb 10, 1998
priority date (Note) -
Expired
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Abstract
A method of preparing tris(2-hydroxyethyl)isocyanurate (THEIC) is disclosed. The method comprises the step of heating a mixture of ethylene carbonate and isocyanuric acid in the presence of a catalyst at a temperature between about 160.degree. C. and 170.degree. C. The molar ratio of ethylene carbonate to isocyanuric acid is at least about 3 to 1, and the catalyst has at least one amine functional group. THEIC produced by the disclosed method can be used without purification as a cross-linking agent in polyester-based magnet wire enamels.
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