PHENOL-FREE PHOSPHITES DERIVATIVES AND PREPARATION THEREOF
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United States of America Patent
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Issued Date -
Apr 11, 2013
app pub date -
Dec 20, 2011
filing date -
Oct 7, 2011
priority date (Note) -
Abandoned
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Abstract
The present invention relates to phenol-free phosphites and preparation thereof. The phenol-free phosphites are obtained by reacting biphenol, and phosphorous derivatives with higher aliphatic alcohol via condensation and trans-esterification. The phenol-free phosphites of the present invention can be used as a heat stabilizer for resin so as to enhance the heat resistance of the resin during processing at high temperatures.
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