METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC POLYESTER
    2.
    发明公开
    METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC POLYESTER 审中-公开
    VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG EINES生物学家ABBAUBAREN ALIPHATIS​​CHEN POLYESTERS

    公开(公告)号:EP2894183A1

    公开(公告)日:2015-07-15

    申请号:EP13836123.3

    申请日:2013-05-20

    CPC分类号: C08G63/16 C08G63/20 C08G63/78

    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.

    摘要翻译: 提供连续制造生物降解性脂肪族聚酯的方法,包括在185℃以下的温度下连续进行包含脂肪族二羟基化合物和脂肪族二羧酸的混合物的酯化反应,得到酯; 连续进行酯的第一次缩聚反应得到预聚合物; 并连续地进行预聚合物的缩聚反应。 根据生产方法,使用一定量的脂肪族二羟基化合物作为起始原料,从而降低可生物降解的脂肪族聚酯的制造成本。

    METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOLYMER
    3.
    发明公开
    METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOLYMER 审中-公开
    方法可生物降解的脂族连续生产/芳族聚酯共聚物

    公开(公告)号:EP2894182A1

    公开(公告)日:2015-07-15

    申请号:EP13834731.5

    申请日:2013-05-20

    IPC分类号: C08G63/78 C08G63/16

    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.

    摘要翻译: 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。