Process for the production of pentaerythritol phosphate alcohol
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United States of America Patent
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Sep 24, 2002
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N/A
app pub date -
Jun 29, 2001
filing date -
Jun 29, 2001
priority date (Note) -
Expired
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Abstract
A process for the production of pentaerythritol phosphate alcohol (PEPA) comprising reacting in the liquid phase phosphorus oxychloride (POCl.sub.3) with pentaerythritol (PE) at a reaction temperature of at least about 100.degree. C. in the presence of a solvent which is an alkane substituted with at least one halogen atom and having an atmospheric boiling point of about 40 to about 150.degree. C., e.g., 1,2-dichloroethane (ethylene dichloride). The reaction pressure is sufficiently high to maintain the solvent in the liquid phase.
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