| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a compound having excellent properties as a plasticizer of a polyester-based polymer or resin which is a biodegradable resin, especially polylactic acid, further having high safety and adding small load on environment. SOLUTION: This polyester resin composition is characterized in that the composition contains singly the acetic acid ester of diglycerol having >=50% acetylation rate or the acetic acid ester of the diglycerol, or a combination thereof with diacetylmonoacylglycerol having an >=8C fatty acid as a constituent fatty acid, as a plasticizer. The material for agriculture or the material for packaging is characterized in that the polyester resin composition is formed into a film or a sheet.</p> |
