Process for the esterification of unsaturated carboxylic acids with unsaturated alcohols with avoidance of blackening and precipitation
AssigneeRhein Chemie Rheinau GmbH
InventorsRudiger Herpich, Bernd Kray, Roland Parg, Erich Schmidt, Stefan Schopfer, Iris Degen
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Abstract
The present invention provides a process for the esterification of unsaturated carboxylic acids with unsaturated alcohols, which is characterized in that esterification is performed in the presence of sterically hindered phenols and partially esterified phosphoric acids. The process according to the invention in particular avoids discoloration (blackening) of the resultant esterification products.
Claims6
A process for the esterification of unsaturated carboxylic acids with unsaturated alcohols comprising the step of performing esterification in the presence of sterically hindered phenols and partially esterified phosphoric acids.
Dependencies are inferred from the claim text.