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14 条记录 (耗时 0.013 秒)

    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.

    PBS resin composition and preparation method thereof
    4.
    发明授权
    PBS resin composition and preparation method thereof 有权

    公开(公告)号：US10815332B2

    公开(公告)日：2020-10-27

    申请号：US16317648

    申请日：2017-11-30

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

    发明人： Weiwei Wang ,  Zhimin Yuan ,  Tongmin Cai ,  Xianbo Huang ,  Xiangbin Zeng ,  Renxu Yuan ,  Zhilong Guo ,  Meijun Tang

    IPC分类号： C08G63/16 ,  C08G63/78 ,  C08K5/521 ,  C08K5/56 ,  C08K5/10

    摘要： The present invention discloses a PBS resin composition and a preparation method thereof. The composition comprises: a. PBS resin; b. element titanium; c. element phosphorus, wherein a weight ratio range of titanium to 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/10 min, and the PBS resin composition possesses an obviously improved hydrolysis property.

    Biodegradable polyester and use thereof
    6.
    发明授权
    Biodegradable polyester and use thereof 有权

    公开(公告)号：US11149112B2

    公开(公告)日：2021-10-19

    申请号：US16644504

    申请日：2018-06-26

    申请人： KINGFA SCI. & TECH. CO., LTD.

    发明人： Weiwei Wang ,  Zhimin Yuan ,  Tongmin Cai ,  Xianbo Huang ,  Xiangbin Zeng ,  Nanbiao Ye ,  Zhilong Guo ,  Changli Lu

    IPC分类号： C08G63/183

    摘要： The present invention relates to a biodegradable polyester and use thereof, including components: A) acid components containing following repeating units: 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 the terephthalic acid, the biodegradable polyester prepared by introducing an aliphatic dibasic acid unit having a carbon chain length of 6 or less can satisfy the degradation performance and rigidity and improve the tenacity of the material simultaneously.

    Poly(Terephthalate-Co-Sebacate) Resin Composition
    9.
    发明申请
    Poly(Terephthalate-Co-Sebacate) Resin Composition 审中-公开

    公开(公告)号：US20190248981A1

    公开(公告)日：2019-08-15

    申请号：US16311262

    申请日：2017-11-30

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

    发明人： Weiwei Wang ,  Zhimin Yuan ,  Tongmin Cai ,  Xianbo Huang ,  Xiangbin Zeng ,  Renxu Yuan ,  Zhilong Guo ,  Meijun Tang

    IPC分类号： C08K5/01

    CPC分类号： C08K5/01 ,  C08J5/18 ,  C08J2367/02

    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 5 ppm-1000 ppm 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 5 ppm-1000 ppm 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.

    Polylactic acid 3D printing material and preparation method thereof
    10.
    发明授权
    Polylactic acid 3D printing material and preparation method thereof 有权

    公开(公告)号：US11453776B2

    公开(公告)日：2022-09-27

    申请号：US16956556

    申请日：2019-05-28

    申请人： KINGFA SCI. & TECH. CO., LTD.

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

    IPC分类号： C08L67/04 ,  B33Y70/00 ,  B29C64/314 ,  B33Y40/10 ,  B29K67/00

    摘要： The present invention relates to a polylactic acid 3D printing material and a preparation method thereof, which belong to the technical field of polymer materials. The polylactic acid 3D printing material of the present invention comprises the following preparation raw materials in parts by weight: (a) 40-95 parts of crystalline or semi-crystalline polylactic acid, (b) 5-60 parts of noncrystalline polylactic acid, and (c) 0-1.0 parts of a processing aid. In the polylactic acid 3D printing material, a weight of dextral polylactic acid represents 0.5%-8% of a total weight of the polylactic acid. According to the present invention, a polylactic acid 3D printing material with a good aging resistance property can be obtained, by selecting and using two kinds of polylactic acids with different optical purities as raw materials, rationally distributing the proportional relationship between the two, and defining the content of dextral polylactic acid.