PROCESS OF PREPARING BIODEGRADABLE POLYESTER BASED POLYMER
摘要
Disclosed are a method for preparing a polyester copolymer and a polyester copolymer prepared thereby. A biodegradable polyester copolymer which is disclosed comprises: a prepolymerization step of producing a prepolymer by polymerizing a dicarboxylic acid compound (A), a diol compound (B) and an aromatic branching agent (C) at 160-220°C; and a step of polycondensing the prepolymer at 200-250°C in a vacuum state of 0.1-2 torr.
申请公布号
KR20140065278(A)
申请公布日期
2014.05.29
申请号
KR20120132597
申请日期
2012.11.21
申请人
SAMSUNG FINE CHEMICALS CO., LTD.
发明人
KIM, HEE SOO;KIM, YE JIN;CHOI, SOO YOUN;KIM, MIN KYOUNG;YUN, KI CHULL