Methods of preparing polyesters from cycle organic carbonates in

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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528176, 528190, 528193, 528194, 528198, C08G 6400

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active

057145687

ABSTRACT:
A process for preparing an esterification product is disclosed. The process comprises providing a polyfunctional organic acid or anhydride, a cyclic organic carbonate compound, and a catalyst selected from the group consisting of an alkali metal, an alcohol-derived salt of the alkali metal, and mixtures thereof, and reacting the polyfunctional organic acid or anhydride and the cyclic organic carbonate compound in the presence of the catalyst to form the esterification product.

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