Processes for preparing alkoxylated nonionic surfactants using hydrotalcite catalysts
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United States of America Patent
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Nov 11, 2003
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N/A
app pub date -
Jan 8, 2002
filing date -
Mar 3, 1999
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Expired
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Abstract
Processes for preparing alkoxylated nonionic surfactants are disclosed, wherein a compound having at least one active hydrogen atom, a carboxylic acid ester or mixtures thereof are reacted with an alkylene oxide in the presence of a hydrotalcite catalyst to form a reaction product mixture; and the reaction product mixture is combined with an acid in at least an equimolar amount based on the amount of the catalyst present.
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