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US 4,055,576 AGranted
Process for the preparation of terpene-maleic anhydrides containing less than 15% di-adduct
AssigneeArizona Chemical Company
InventorsRobert William Schluenz, Curry Beach Davis
Life of this patent
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Abstract
There is provided a process for preparing the reaction product of maleic anhydride with a non-conjugated mono-cyclic terpene in the presence of controlled amounts of iodine to attain a mixture of not more than 15% di-adducts and the balance of said mixture being mono-adducts.
Claims7
A process for preparing maleic anhydride adducts from non-conjugated monocyclic terpenes which comprises:
- reacting at temperatures between 175.degree. C. and 200.degree. C. substantially equimolar amounts of (a) a non-conjugated monocyclic terpene or mixed non-conjugated monocyclic terpenes and (b) maleic acid anhydride in the presence of from 0.05% to 0.15% iodine, based on the weight of the terpene, and recovering a mixture of not less than 85% mono-adduct and not more than 15% di-adduct of terpene maleic adduct in good yield, color and purity.
Dependencies are inferred from the claim text.