METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC POLYESTER
摘要
Provided is a method of continuous production of a biodegradable aliphatic polyester including continuously performing an esterification reaction of a mixture including an aliphatic dihydroxy compound and aliphatic dicarboxylic acid at a temperature of 185°C or less to obtain an ester; continuously performing a first polycondensation reaction of the ester to obtain a preliminary polymer; and continuously performing a polycondensation reaction of the preliminary polymer. According to the method of production, an amount of the aliphatic dihydroxy compound used decreases, which is a starting material, thereby decreasing the manufacturing cost of the biodegradable aliphatic polyester.
申请公布号
EP2894183(A1)
申请公布日期
2015.07.15
申请号
EP20130836123
申请日期
2013.05.20
申请人
SAMSUNG FINE CHEMICALS CO., LTD.;S-ENPOL CO., LTD.
发明人
KANG, GYUNG DON;YUN, KI CHULL;KIM, SANG YOB;RYUM, JUNG;KIM, BOO SEONG;BYUN, KIL SEUK;KIM, SEI HOON;PARK, SUNG BAE