BIODEGRADABLE ALIPHATIC POLYESTER RESIN COMPOSITION WITH HIGH TRANSPARENCY

摘要

PURPOSE: A biodegradable aliphatic polyester resin composition is provided to solve problems for physical property of conventional biodecomposable resin, workability, and moisture fragility. CONSTITUTION: A biodegradable aliphatic polyester resin composition is manufactured by the following steps: mixing acid component mixture with aliphatic glycol; transesterificating or esterificating the mixture after adding catalyst and stabilizer; and polycondensing by adding catalyst and stabilizer to the reaction product. The acidity mixture includes aliphatic dicarboxylic acid or anhydride, and a polymer of lactic acid having molecular weight of 90-300,000 at the molar ratio of 99.99:0.01 - 50:50.