| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a compound high in performance as a plasticizer for a biodegradable polyester based polymers, resins, and, particularly, for polylactic acid, and, furthermore, high in safety and low in environmental load. SOLUTION: The polyester resin composition is (1) a composition which has polylactic acid as its main component and contains, as a plasticizer, diglycerol acetate with its acetylation rate not less than 50% or (2) a composition which contains diglycerol acetate and diacetylmonoacyl glycerol having, as a constituent fatty acid, an aliphatic fatty acid containing not less than eight carbons.</p> |
