| 摘要 |
THE PRESENT INVENTION RELATES TO A METHOD OF PREPARING A BIODEGRADABLE POLYMER COMPOSITION, SAID METHOD COMPRISING MELT MIXING A FIRST BIODEGRADABLE POLYESTER AND A MASTERBATCH, WHEREIN SAID MASTERBATCH HAS BEEN FORMED SEPARATELY BY MELT MIXING IN THE PRESENCE OF A TRANSESTERIFICATION CATALYST A POLYSACCHARIDE, A SECOND BIODEGRADABLE POLYESTER AND A BIODEGRADABLE POLYMER HAVING PENDANT CARBOXYLIC ACID GROUPS. |
