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    BIODEGRADABLE COPOLYESTER COMPOSITION
    1.
    发明公开
    BIODEGRADABLE COPOLYESTER COMPOSITION 审中-公开
    可生物降解的共聚酯组合物

    公开(公告)号：EP3240818A1

    公开(公告)日：2017-11-08

    申请号：EP15823409.6

    申请日：2015-12-29

    申请人： PTT Global Chemical Public Company Limited

    发明人： TANG-AMORNSUKSAN, Suchada ,  POTISATITYUENYONG, Anupat

    IPC分类号： C08G63/183 ,  C08G63/20 ,  C08L67/02

    CPC分类号： C08G63/183 ,  C08G63/20 ,  C08G2230/00 ,  C08L67/02 ,  C08L2201/06

    摘要： This invention relates to a biodegradable copolyester composition, comprising: a) from 40 to 60 mol %, based on total mole of a) and b), of aromatic dicarboxylic acid selected from benzene dicarboxylic acid or ester derivative of said acid; b) from 40 to 60 mol %, based on total mole of a) and b), of a mixture of aliphatic dicarboxylic acid, wherein b) comprising: b1) from 20 to 80 mol %, based on mole of b), of at least one aliphatic dicarboxylic acid having 2 to 6 carbon atoms; and b2) from 20 to 80 mol %, based on mole of b), of at least one aliphatic dicarboxylic acid having 7 to 14 carbon atoms; c) at least one mole equivalent, based on total mole of a) and b), of diol having 2 to 6 carbon atoms; and d) from 0.1 to 2.0 mole % based on total mole of a), b), c), and d), of alcohol with at least 3 hydroxyl groups. The biodegradable copolyester composition according to this invention has improved thermal property, mechanical property, and biodegradability.