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    • 10. 发明公开
    • METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOLYMER
    • 方法可生物降解的脂族连续生产/芳族聚酯共聚物
    • EP2894182A1
    • 2015-07-15
    • EP13834731.5
    • 2013-05-20
    • Samsung Fine Chemicals Co., Ltd.S-Enpol Co., Ltd.
    • KANG, Gyung DonYUN, Ki ChullKIM, Sang YobBYUN, Kil SeukRYUM, JungKIM, Boo SeongKIM, Sei HoonPARK, Sung Bae
    • C08G63/78C08G63/16
    • C08G63/78C08G63/181C08G2230/00
    • 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.
    • 提供被连续制备可生物降解的脂族/芳族聚酯共聚物的方法,该方法包括:在185℃或更低的温度下进行的脂族二羟基化合物与在脂肪族二羧酸的第一酯化反应; 连续地执行由第一酯化反应得到的反应产物的第二酯化反应; 通过连续进行由所述第二酯化反应得到的反应产物的第一缩聚反应获得的预聚合物; 和连续地进行预聚物的缩聚反应中,worin到芳族羧酸被加入到其中,第一酯化反应或第二酯化反应中进行的反应器中,制备可生物降解的脂族/芳族聚酯共聚物。 如上所述。根据连续制备可生物降解的脂族/芳族聚酯的共聚物的方法,所述脂肪族二羟基化合物的使用量,在所有作为起始材料,被减少,因此,降低了制造成本。