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    Polylactic acid composite and use thereof
    1.
    发明授权
    Polylactic acid composite and use thereof 有权

    公开(公告)号：US11530294B2

    公开(公告)日：2022-12-20

    申请号：US16644509

    申请日：2018-06-26

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

    发明人： Changli Lu ,  Zhimin Yuan ,  Tongmin Cai ,  Xianbo Huang ,  Xiangbin Zeng ,  Jian Jiao ,  Kai Xiong ,  Hui Yang ,  Kaijin Mai ,  Xueteng Dong ,  Shihua He

    IPC分类号： C08G63/08 ,  C08K3/34 ,  C08K5/00

    摘要： The present invention discloses a polylactic acid composite and use thereof. The polylactic acid composite includes the following components: (A) 89 to 98 parts by weight of polylactic acid; (B) 1 to 4 parts by weight of talcum powder; and (C) 1 to 7 parts by weight of a plasticizer. In the component (A), the polylactic acid has a polydispersity index P satisfying the following relationship: 1.55≤P≤2.02. In the component (B), the talcum powder has a particle size D(50) satisfying: 1 μm≤D(50)≤2.6 μm. In the component (C), the plasticizer has a relative molecular weight M satisfying: 180≤M≤670. Through research, the present invention has unexpectedly discovered that by using the polylactic acid having the polydispersity index P satisfying the relationship 1.55≤P≤2.02 as a matrix, adding a specific range of content of ultrafine talcum powder as a nucleating agent, and selecting the plasticizer of a specific molecular weight as a crystallization promotion agent, the prepared polylactic acid composite has a light transmittance T≥80%, a haze H≤40%, and a heat deflection temperature HDT≥90° C., having significantly improved heat resistance and transparency.

    POLYLACTIC ACID COMPOSITE AND USE THEREOF
    5.
    发明申请
    POLYLACTIC ACID COMPOSITE AND USE THEREOF 审中-公开

    公开(公告)号：US20200291176A1

    公开(公告)日：2020-09-17

    申请号：US16644509

    申请日：2018-06-26

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

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

    IPC分类号： C08G63/08

    摘要： The present invention discloses a polylactic acid composite and use thereof. The polylactic acid composite includes the following components: (A) 89 to 98 parts by weight of polylactic acid; (B) 1 to 4 parts by weight of talcum powder; and (C) 1 to 7 parts by weight of a plasticizer. In the component (A), the polylactic acid has a polydispersity index P satisfying the following relationship: 1.55≤P≤2.02. In the component (B), the talcum powder has a particle size D(50) satisfying: 1 μm≤D(50)≤2.6 μm. In the component (C), the plasticizer has a relative molecular weight M satisfying: 180≤M≤670. Through research, the present invention has unexpectedly discovered that by using the polylactic acid having the polydispersity index P satisfying the relationship 1.55≤P≤2.02 as a matrix, adding a specific range of content of ultrafine talcum powder as a nucleating agent, and selecting the plasticizer of a specific molecular weight as a crystallization promotion agent, the prepared polylactic acid composite has a light transmittance T≥80%, a haze H≤40%, and a heat deflection temperature HDT≥90° C., having significantly improved heat resistance and transparency.

    A Polyamide Resin and Its Application and Polyamide Composition Thereof
    10.
    发明申请
    A Polyamide Resin and Its Application and Polyamide Composition Thereof 审中-公开
    聚酰胺树脂及其应用及其聚酰胺组成

    公开(公告)号：US20150361217A1

    公开(公告)日：2015-12-17

    申请号：US14760664

    申请日：2014-01-10

    申请人： (KINGFA SCI. & TECH.CO., LTD.) ,  (ZHUHAI WANGO CHEMICAL CO., LTD.)

    发明人： Chuanhui ZHANG ,  Tongmin CAI ,  Xiangbin ZENG ,  Min CAO ,  Shiyong XIA ,  Nanbiao YE ,  Dahua CHEN ,  Shaoyan YUAN

    IPC分类号： C08G69/36 ,  C08L77/06 ,  C08G69/26

    CPC分类号： C08G69/36 ,  C08G69/265 ,  C08L77/06 ,  C08L2201/02 ,  C08L2201/08

    摘要： The present invention discloses a polyamide resin and its application and polyamide composition thereof. The repeating units of the described polyamide resin comprises the following components: dicarboxylic acid units composed 80-100 mol % of polyamide resin; aliphatic diamines units having 2-14 carbon atoms composed 80-100 mol % of polyamide resin; lactam or amino acid units having 6-14 carbon atoms composed 0-20 mol % of polyamide resin; in the described polyamide resin, the bio-based carbon concentration is more than 45%; the described bio-based carbon mole concentration is calculated according to the formula below: bio-based carbon concentration=(bio-based carbon mole content/total organic carbon mole content)*100%. The described polyamide resin in the present invention has low gas volatile, hence the polyamide composition produced thereof has low gas volatile too, and can be applied to food-contact field. In addition, the surface condition after reflow soldering of the polyamide composition produced is good.

    摘要翻译： 本发明公开了一种聚酰胺树脂及其应用及其聚酰胺组合物。 所述聚酰胺树脂的重复单元包括以下组分：由聚酰胺树脂组成的80-100摩尔％的二羧酸单元; 具有2〜14个碳原子的脂肪族二胺单元构成聚酰胺树脂80-100摩尔％ 具有6-14个碳原子的内酰胺或氨基酸单元，占聚酰胺树脂的0-20摩尔％; 在所述聚酰胺树脂中，生物基碳浓度大于45％; 所述生物基碳摩尔浓度根据以下公式计算：生物基碳浓度=（生物基碳摩尔含量/总有机碳摩尔含量）* 100％。 本发明所述的聚酰胺树脂挥发性低，因此其制造的聚酰胺组合物的挥发性也低，可应用于食品接触场。 此外，制造的聚酰胺组合物的回流焊接后的表面状态良好。