Tertiary amine-containing polyols prepared in a Mannich condensation reaction using a mixture of alkanolamines
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United States of America Patent
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Jun 9, 1992
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N/A
app pub date -
Jun 29, 1989
filing date -
Jun 29, 1989
priority date (Note) -
Expired
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Abstract
An improved process for preparing Mannich polyols is disclosed. The process involves capping a Mannich condensate of a phenolic compound or an amino-substituted s-triazine with a small quantity of an alkylene oxide in the absence of an alkylene oxide polymerization catalyst, prior to heating the condensate to elevated temperatures at which polycondensates are formed. The capped Mannich condensate is then alkoxylated to form the desired polyol.
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