Saturated polyesters from dicarboxylic anhydrides and - alkylene oxides

摘要

The polyester is prepd by reacting a dicarboxylic anhydride and polyvalent alcohol in the molar ratio of 1 to 0.2-0.5 with an alkylene oxide in an inert solvent and using an acid polymerisation catalyst. Pref. The reaction is at 30-160 degrees C Standard catalysts and solvents are used.