Process for preparing hydroxy-functionalized polyesters
AssigneeThe Dow Chemical Company
InventorsH. David Chen, Michael N. Mang, Jerry E. White
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Abstract
A process for preparing a thermoplastic hydroxy-functionalized polyesters comprises contacting a dicarboxylic acid or a mixture of dicarboxylic acids with a diepoxide in the presence of a monofunctional carboxylic acid and a catalyst, and in the absence of a solvent under conditions sufficient to form the hydroxy-functionalized polyesters.
Claims15
A process for preparing thermoplastic hydroxy-functionalized polyesters which comprises contacting a dicarboxylic acid or a mixture of dicarboxylic acids with a diepoxide in the presence of a monofunctional carboxylic acid and a catalyst, and in the absence of a solvent under conditions sufficient to form the hydroxy-functionalized polyesters.
A process for preparing a thermoplastic hydroxy-functionalized polyesters which comprises contacting a dicarboxylic acid or a mixture of dicarboxylic acids with a diepoxide in the presence of a monofunctional carboxylic acid and a catalyst, and in the absence of a solvent at a temperature of from about 150.degree. C. to about 160.degree. C. until the reaction mixture is melted.
Dependencies are inferred from the claim text.