Aliphatic copolymerized polyesters and blown films prepared therefrom

摘要

The present invention relates to a process for the production of a copolymer comprising a residue of an acid component consisting of 70 to 95 mol% of succinic acid residues relative to the total acid residues and 5 to 30 mol% of adipic acid residues, Component residues and compound residues having three or more functionalities in an amount of 0.001 to 1 mol% based on the residues of the acid component or residues of the diol component and having an intrinsic viscosity of 1.0 or more, And blown film extruded and stretched through an extruder.