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    POLYTEREPHTHALATE-CO-SEBACATE RESIN AND METHOD FOR PREPARING SAME
    1.
    发明公开
    POLYTEREPHTHALATE-CO-SEBACATE RESIN AND METHOD FOR PREPARING SAME 审中-公开

    公开(公告)号：EP3553109A1

    公开(公告)日：2019-10-16

    申请号：EP17878750.3

    申请日：2017-11-30

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

    发明人： WANG, Weiwei ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  YUAN, Renxu ,  GUO, Zhilong ,  TANG, Meijun

    IPC分类号： C08G63/183 ,  C08G63/185 ,  C08G63/78

    摘要： The present invention discloses a poly(terephthalate-co-sebacate) resin and a preparation method thereof, wherein the poly(terephthalate-co-sebacate) resin is formed by polymerization of a diacid and a diol, the diacid consists of 45mol%-55mol% of terephthalic acid and 45mol%-55mol% of sebacic acid, the diol is 1,4-butanediol, and thermal performance parameters of the poly(terephthalate-co-sebacate) resin meet the following relational expression: T crystallization peak width at half height / T melting point − T crystallization temperature = 0.05 to 0.26 ; and a film made of the poly(terephthalate-co-sebacate) resin with a thickness of 25±1µm has a static friction coefficient of 0.2-0.3 and a light transmittance of 90% or above, and has balanced light transmittance and static friction coefficient, having a relatively low static friction coefficient whilst maintaining a relatively high light transmittance performance, and the resin can be smoothly processed without adding an antiblocking agent or a compatilizer, so that the obtained poly(terephthalate-co-sebacate) resin has good transparency and processing performance.

    PBAT RESIN COMPOSITION
    2.
    发明公开
    PBAT RESIN COMPOSITION 审中-公开
    PBAT树脂组合物

    公开(公告)号：EP3260493A1

    公开(公告)日：2017-12-27

    申请号：EP16884775.4

    申请日：2016-12-15

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

    发明人： ZHAO, Wei ,  YUAN, Renxu ,  TANG, Meijun ,  JIAO, Jian ,  XIONG, Kai ,  ZHONG, Yuke ,  YANG, Hui ,  MAI, Kaijin ,  GUO, Zhilong ,  DONG, Xueteng ,  ZENG, Xiangbin

    IPC分类号： C08L67/02 ,  C08G63/183 ,  C08K3/08

    摘要： The present invention discloses a PBAT resin composition comprising following components: (a) poly(butyleneadipate-co-terephthalate); (b) iron element; wherein, based on a total weight of the PBAT resin composition, a weight content of the iron element is 1ppm-500ppm. By adding iron-containing compounds into the composition and controlling the content of the iron element in a range of 1ppm-500ppm in the composition, a speed of reaction of aromatic structure in the PBAT resin under a hot and humid condition can be postponed, so that after the prepared PBAT resin composition is aged in boiling water for 24 hours and 48 hours, a variation of b-value is less than 2. The PBAT resin composition has obviously improved color stability in resistance to boiling water aging.

    摘要翻译： 本发明公开了一种PBAT树脂组合物，其包含以下组分：（a）聚（亚丁基己二酸酯 - 共 - 对苯二甲酸酯）; （b）铁元素; 其中，基于PBAT树脂组合物的总重量，铁元素的重量含量为1ppm-500ppm。 通过向组合物中添加含铁化合物，并且在组合物中将铁元素的含量控制在1ppm〜500ppm的范围内，可以推迟PBAT树脂在炎热和潮湿条件下的芳香族结构的反应速度，所以 在制备的PBAT树脂组合物在沸水中老化24小时和48小时后，b值的变化小于2.PBAT树脂组合物具有明显改进的耐沸水老化的颜色稳定性。

    BIODEGRADABLE POLYESTER AND USE THEREOF
    6.
    发明公开
    BIODEGRADABLE POLYESTER AND USE THEREOF 审中-公开

    公开(公告)号：EP3660070A1

    公开(公告)日：2020-06-03

    申请号：EP18870205.4

    申请日：2018-06-26

    申请人： Kingfa Sci. & Tech. Co., Ltd.

    发明人： WANG, Weiwei ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  YE, Nanbiao ,  GUO, Zhilong ,  LU, Changli

    IPC分类号： C08G63/183 ,  C08G63/16

    摘要： The present invention discloses a biodegradable polyester and use thereof, including components:
    A) containing repeating units of acid components as follows:
    50 to 58 mol% of terephthalic acid A1;
    30 to 40 mol% of sebacic acid A2; and
    2 to 20 mol% of an aliphatic dibasic acid A3 with a carbon chain length of 6 or less;

    B) butanediol.
    In the present invention, in the case of a high content of terephthalic acid, by introducing an aliphatic dibasic acid unit having a carbon chain length of 6 or less, under the circumstance that the prepared biodegradable polyester satisfies the degradation performance and rigidity, the tenacity of the material can be improved simultaneously.

    PBS RESIN COMPOSITION AND PREPARATION METHOD THEREFOR
    7.
    发明公开
    PBS RESIN COMPOSITION AND PREPARATION METHOD THEREFOR 审中-公开

    公开(公告)号：EP3560995A1

    公开(公告)日：2019-10-30

    申请号：EP17884479.1

    申请日：2017-11-30

    申请人： Kingfa Sci. & Tech. Co., Ltd.

    发明人： WANG, Weiwei ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  YUAN, Renxu ,  GUO, Zhilong ,  TANG, Meijun

    IPC分类号： C08L67/02 ,  C08K5/521 ,  C08K5/10 ,  C08G63/85 ,  C08G63/16

    摘要： The present invention discloses a PBS resin composition and a preparation method thereof. The PBS resin composition comprises the following components: a. PBS resin; b. element titanium; c. element phosphorus, wherein a range of a weight ratio of the element titanium to the element phosphorus is 0.6-10:1, preferably 0.7-4:1, and more preferably 1.25-1.5:1. A weight content of the element titanium is 20-200 ppm, and a weight content of the element phosphorus is 15-70 ppm. By adding a titanium-containing compound and a phosphorus-containing compound and controlling the range of the weight ratio of the element titanium to the element phosphorus in the PBS resin composition to be 0.6-10:1, the present invention obtains a PBS resin composition. After treating in a 95°C-distilled water bath for 12 hours and drying at 90°C for 3 hours, a change of the melt flow index of the PBS resin composition is less than 50.0 g/lOmin, and the PBS resin composition possesses an obviously improved hydrolysis property.

    BIODEGRADABLE POLYESTER AND USE THEREOF
    8.
    发明公开
    BIODEGRADABLE POLYESTER AND USE THEREOF 审中-公开

    公开(公告)号：EP3660071A1

    公开(公告)日：2020-06-03

    申请号：EP18870723.6

    申请日：2018-06-26

    申请人： Kingfa Sci. & Tech. Co., Ltd.

    发明人： WANG, Weiwei ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  YE, Nanbiao ,  GUO, Zhilong ,  LU, Changli

    IPC分类号： C08G63/183 ,  C08G63/78 ,  C08J5/18

    摘要： Disclosed are a biodegradable polyester and the use thereof, said biodegradable polyester comprising: A) an acid component comprising the following repeating units: 40-48 mol% of terephthalic acid A1; 38.5-50 mol% of sebacic acid A2; and 2-20 mol% of aliphatic dibasic acid A3 having a carbon chain length with less than or equal to 6 carbons; and B) a butanediol. With a low content of terephthalic acid, the introduction of the aliphatic dibasic acid monomer having a carbon chain length with less than or equal to 6 carbons sensibly improves the mechanical property of the material, specifically, when storing the material in a humid environment so as to maintain the good mechanical property retention rate.

    POLYTEREPHTHALATE-CO-SEBACATE RESIN COMPOSITION
    10.
    发明公开
    POLYTEREPHTHALATE-CO-SEBACATE RESIN COMPOSITION 审中-公开

    公开(公告)号：EP3553130A1

    公开(公告)日：2019-10-16

    申请号：EP17881804.3

    申请日：2017-11-30

    申请人： Kingfa Sci. & Tech. Co., Ltd.

    发明人： WANG, Weiwei ,  YUAN, Zhimin ,  CAI, Tongmin ,  HUANG, Xianbo ,  ZENG, Xiangbin ,  YUAN, Renxu ,  GUO, Zhilong ,  TANG, Meijun

    IPC分类号： C08L67/02 ,  C08K5/01

    摘要： The present invention discloses a poly(terephthalate-co-sebacate) resin composition, comprising the following components: a. poly(terephthalate-co-sebacate); and b. an alkane, which is at least one selected from the group consisting of hexadecane, heptadecane, octadecane, nonadecane and eicosane; wherein a weight content of the alkane is 5ppm-1000ppm based on a total weight of the poly(terephthalate-co-sebacate) resin composition. The present invention controls the content of alkane in the composition within a range of 5ppm-1000ppm by adding an alkane, which not only enables the poly(terephthalate-co-sebacate) resin to have obviously improved blow molding properties, a film thickness range of less than 0.3 µm, and a relative deviation of film thickness of less than 2.0%, thereby guaranteeing a bubble stability and a continuity of blow molding, but also enables the film material to prevent the ink from stripping off the film material, and to prevent excessive ink from adhering to the film material in the printing process, so that the film shows excellent printing performance.