Process for esterifying 3,5-di-tert-butyl-4-hydroxybenzoic acid
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United States of America Patent
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Jul 9, 1985
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N/A
app pub date -
Aug 15, 1983
filing date -
Aug 15, 1983
priority date (Note) -
Expired
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Abstract
A process for making C.sub.8 -C.sub.20 alkyl esters by esterification of 3,5-di-tert-butyl-4-hydroxybenzoic acid with a C.sub.8 -C.sub.20 alcohol. The esterification reaction is conducted at 110.degree.-150.degree. C. in the presence of 5-20 weight percent based on the weight of 3,5-di-tert-butyl-4-hydroxybenzoic acid, of a strongly acidic gel-type ion-exchange resin catalyst having less than about 8 percent cross-linking.
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