发明名称 |
METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOLYMER |
摘要 |
Provided is a method of continuous preparation of a biodegradable aliphatic/aromatic polyester copolymer, the method including: performing a first esterification reaction of an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid at a temperature of 185 °C or less; continuously performing a second esterification reaction of a reaction product obtained by the first esterification reaction; obtaining a pre-polymer by continuously performing a first polycondensation reaction of a reaction product obtained by the second esterification reaction; and continuously performing polycondensation reaction of the pre-polymer, wherein an aromatic carboxylic acid is added to a reactor in which the first esterification reaction or the second esterification reaction is performed, to prepare the biodegradable aliphatic/aromatic polyester copolymer. According to the method of continuous preparation of the biodegradable aliphatic/aromatic polyester copolymer as described above, the amount of the aliphatic dihydroxy compound used, which is a starting material, is reduced and accordingly, manufacturing costs are reduced. |
申请公布号 |
EP2894182(A4) |
申请公布日期 |
2016.05.11 |
申请号 |
EP20130834731 |
申请日期 |
2013.05.20 |
申请人 |
LOTTE FINE CHEMICAL CO., LTD.;S-ENPOL CO., LTD. |
发明人 |
KANG, GYUNG DON;YUN, KI CHULL;KIM, SANG YOB;BYUN, KIL SEUK;RYUM, JUNG;KIM, BOO SEONG;KIM, SEI HOON;PARK, SUNG BAE |
分类号 |
C08G63/78;C08G63/16;C08G63/181 |
主分类号 |
C08G63/78 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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