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    THERMOPLASTIC COMPOSITION AND METHOD OF PREPARING THE SAME
    2.
    发明申请
    THERMOPLASTIC COMPOSITION AND METHOD OF PREPARING THE SAME 有权

    公开(公告)号：US20230127585A1

    公开(公告)日：2023-04-27

    申请号：US18086612

    申请日：2022-12-21

    Applicant: Taiwan Textile Research Institute

    Inventor： Shang-Chih Chou ,  Shao-Yen Chang ,  Chun-Hung Lin ,  Yuan-Pei Liao ,  Yi-Cang Lai

    IPC: C08L79/08 ,  C08L65/02 ,  C08L81/02

    Abstract: A method of preparing a thermoplastic composition is provided. The method includes the following steps. A polyetherimide or a polyphenylene sulfide is provided. A polyimide is provided, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP. A melt process is performed to mix the polyetherimide and the polyimide or mix the polyphenylene sulfide and the polyimide to form a thermoplastic composition. Further, a thermoplastic composition is also provided.

    Polyimide composition
    3.
    发明授权
    Polyimide composition 有权

    公开(公告)号：US11229885B2

    公开(公告)日：2022-01-25

    申请号：US16850005

    申请日：2020-04-16

    Applicant: Taiwan Textile Research Institute

    Inventor： Shang-Chih Chou ,  Chun-Hung Chen ,  Chun-Hung Lin ,  Kueir-Rarn Lee

    IPC: B01D67/00 ,  B01D69/12 ,  C08G73/10 ,  B01D69/02 ,  B01D71/60 ,  B01D71/64 ,  C08L79/08 ,  C09D179/08 ,  B01D61/36

    Abstract: A preparation method of separation membrane is provided. First, a polyimide composition including a dissolvable polyimide, a crosslinking agent and a solvent is provided. The dissolvable polyimide is represented by formula 1: wherein B is a tetravalent organic group derived from a tetracarboxylic dianhydride containing aromatic group, A is a divalent organic group derived from a diamine containing aromatic group, A′ is a divalent organic group derived from a diamine containing aromatic group and carboxylic acid group, and 0.1≤X≤0.9. The crosslinking agent is an aziridine crosslinking agent, an isocyanate crosslinking agent, an epoxy crosslinking agent, a diamine crosslinking agent, or a triamine crosslinking agent. A crosslinking process is performed on the polyimide composition. The polyimide composition which has been subjected to the crosslinking process is coated on a substrate to form a polyimide membrane. A wet phase inversion process is performed on the polyimide membrane.

    POLYIMIDE COMPOSITION
    4.
    发明申请
    POLYIMIDE COMPOSITION 审中-公开

    公开(公告)号：US20200376446A1

    公开(公告)日：2020-12-03

    申请号：US16996853

    申请日：2020-08-18

    Applicant: Taiwan Textile Research Institute

    Inventor： Shang-Chih Chou ,  Chun-Hung Chen ,  Chun-Hung Lin ,  Kueir-Rarn Lee

    IPC: B01D71/80 ,  B01D69/02 ,  C08G73/10 ,  C09D179/08 ,  B01D67/00 ,  C08J7/04 ,  B01D71/64 ,  C08L79/08

    Abstract: A preparation method of separation membrane is provided. First, a polyimide composition including a dissolvable polyimide, a crosslinking agent, and a solvent is provided. The dissolvable polyimide is represented by formula 1: wherein B is a tetravalent organic group derived from a tetracarboxylic dianhydride containing aromatic group, A is a divalent organic group derived from a diamine containing aromatic group, A′ is a divalent organic group derived from a diamine containing aromatic group and carboxylic acid group, and 0.1≤X≤0.9. The crosslinking agent is an aziridine crosslinking agent, an isocyanate crosslinking agent, an epoxy crosslinking agent, a diamine crosslinking agent, or a triamine crosslinking agent. A crosslinking process is performed on the polyimide composition. The polyimide composition which has been subjected to the crosslinking process is coated on a substrate to form a polyimide membrane. A dry phase inversion process is performed on the polyimide membrane.

    MELTBLOWN NONWOVEN FABRIC
    6.
    发明申请
    MELTBLOWN NONWOVEN FABRIC 有权

    公开(公告)号：US20210102321A1

    公开(公告)日：2021-04-08

    申请号：US16782082

    申请日：2020-02-05

    Applicant: Taiwan Textile Research Institute

    Inventor： Shang-Chih Chou ,  Shao-Yen Chang ,  Chun-Hung Lin ,  Yuan-Pei Liao ,  Yi-Cang Lai

    IPC: D04H1/56 ,  D04H3/16 ,  D04H1/4326 ,  D01F6/66 ,  D01F6/74

    Abstract: A meltblown nonwoven fabric is provided. The meltblown nonwoven fabric includes a plurality of meltblown fibers adhered to each other. The material of each of the meltblown fibers includes a polyetherimide and a polyimide, or the material of each of the meltblown fibers includes a polyphenylene sulfide and a polyimide, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP.

    MANUFACTURING METHOD FOR TRANSPARENT FIBER
    9.
    发明申请
    MANUFACTURING METHOD FOR TRANSPARENT FIBER 有权
    透明纤维的制造方法

    公开(公告)号：US20160145774A1

    公开(公告)日：2016-05-26

    申请号：US14738958

    申请日：2015-06-15

    Applicant: Taiwan Textile Research Institute

    Inventor： Shang-Chih Chou ,  Chun-Hung Chen ,  Chun-Hung Lin

    IPC: D01F6/74 ,  D01D5/16 ,  D01D5/12

    CPC classification number: D01F6/74 ,  C08G73/1003 ,  D01D5/12 ,  D01D5/16 ,  D01D10/02 ,  D02J1/228

    Abstract: A manufacturing method for a transparent fiber is provided. The method includes forming a spinning solution containing a polyimide polymer in an organic solvent. The polydispersity index (PDI) of the polyimide polymer is 1.3˜2.6. The spinning solution is used to perform a dry-jet wet spinning step to form a plurality of fibers. Furthermore, the plurality of fibers are subjected to a thermal drawing step to form a plurality of transparent fibers, wherein the temperature of the thermal drawing step is controlled from 215° C. to 350° C. The manufacturing method for a transparent fiber provided in the present invention makes use of a polyimide polymer material and utilizes a dry-jet wet spinning step and a thermal drawing step, which allows the formation of a transparent and high strength polyimide fiber.

    Abstract translation: 提供一种透明纤维的制造方法。 该方法包括在有机溶剂中形成含有聚酰亚胺聚合物的纺丝溶液。 聚酰亚胺聚合物的多分散指数（PDI）为1.3〜2.6。 纺丝溶液用于进行干喷湿纺步骤以形成多根纤维。 此外，对多根纤维进行热拉伸步骤以形成多个透明纤维，其中将热拉伸步骤的温度控制在215℃至350℃。提供的透明纤维的制造方法 本发明利用聚酰亚胺聚合物材料，并且使用干喷射湿纺丝步骤和热拉伸步骤，其允许形成透明和高强度的聚酰亚胺纤维。

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