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    PBAT RESIN COMPOSITION
    1.
    发明公开
    PBAT RESIN COMPOSITION 审中-公开

    公开(公告)号：EP3428232A1

    公开(公告)日：2019-01-16

    申请号：EP16893242.4

    申请日：2016-08-30

    申请人： Tianjin Kingfa New Material Co., Ltd.

    发明人： LU, Changli ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  JIAO, Jian ,  YUAN, Renxu ,  ZHONG, Yuke ,  XIONG, Kai ,  YANG, Hui ,  MAI, Kaijin ,  DONG, Xueteng

    IPC分类号： C08L67/02 ,  C08K5/156 ,  C08G63/183

    摘要： The present invention discloses a PBAT resin composition comprising: (a) Poly (butyleneadipate-co-terephthalate); (b) a cyclic esterified product having a structure represented by the formula (I)

    Wherein the content by weight of the cyclic esterified product is from 10 ppm to 2000 ppm, based on the total weight of the PBAT resin composition. In the present invention, the service life of the PBAT resin composition can be greatly extended by adding cyclic esterified product in the PBAT resin composition and controlling the content of the cyclic esterified product in the composition in the range of 10 ppm to 2000 ppm. And after boiled for 240 hours in 95% ethanol at 40°C,the film produced from blowing or the articles produced from injection have less surface precipitates, with excellent surface appearance properties.

    BIODEGRADABLE POLYESTER COMPOSITION
    2.
    发明公开
    BIODEGRADABLE POLYESTER COMPOSITION 审中-公开
    生物可降解聚酯组合物

    公开(公告)号：EP3260496A1

    公开(公告)日：2017-12-27

    申请号：EP17762458.2

    申请日：2017-02-24

    申请人： Kingfa Sci. & Tech. Co., Ltd. ,  Zhuhai Wango Chemical Co., Ltd. ,  Tianjin Kingfa New Material Co., Ltd.

    发明人： LU, Changli ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  JIAO, Jian ,  YUAN, Renxu ,  ZHONG, Yuke ,  XIONG, Kai ,  YANG, Hui ,  MAI, Kaijin ,  DONG, Xueteng

    IPC分类号： C08L67/02 ,  C08L67/04 ,  C08L25/14 ,  C08L3/02 ,  C08K5/1535 ,  C08K5/156 ,  C08K13/02

    CPC分类号： C08L67/02 ,  C08K5/1535 ,  C08K5/156 ,  C08K13/02 ,  C08L3/02 ,  C08L25/14 ,  C08L67/04 ,  C08L2201/06 ,  C08L2201/08 ,  C08L2205/02 ,  C08L2205/03

    摘要： The present invention discloses a biodegradable polyester composition, wherein based on a total weight of the biodegradable polyester composition, a weight content of a cyclic ester compound having a structure shown as formula (I) is 100ppm-950ppm;

    and based on the total weight of the biodegradable polyester composition, a weight content of tetrahydrofuran is 3ppm-200ppm. In the present invention, by adding the cyclic ester compound and tetrahydrofuran into the composition and controlling the content of the cyclic ester compound and the content of tetrahydrofuran in a certain range in the composition, an anti-thermal oxidative aging property of the biodegradable polyester composition can be greatly improved. Besides, after being digested with 95% ethanol at 40°C for 240 hours, a film prepared by blow molding or a part prepared by injection molding has little precipitate separating out of the surface and has an excellent surface appearance property. Also, poor printing of the biodegradable polyester composition during printing process can be greatly improved and the film shows excellent printing performance.

    摘要翻译： 本发明公开了一种生物可降解聚酯组合物，其中基于生物可降解聚酯组合物的总重量，具有式（I）所示结构的环状酯化合物的重量含量为100ppm-950ppm; 并且基于生物可降解聚酯组合物的总重量，四氢呋喃的重量含量为3ppm-200ppm。 在本发明中，通过在组合物中添加环状酯化合物和四氢呋喃，并且在组合物中将环状酯化合物的含量和四氢呋喃的含量控制在一定范围内，可生物降解聚酯组合物的抗热氧化老化性 可以大大提高。 此外，用95％乙醇在40℃下消化240小时后，通过吹塑或通过注塑制备的部件制备的膜具有很少的从表面析出的沉淀，并具有优异的表面外观性能。 而且，印刷过程中可生物降解的聚酯组合物的印刷不良可以大大改善，并且该膜显示出优异的印刷性能。