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    METHOD OF PREPARING WEAR AND CUT RESISTANT UHMWPE FIBERS
    31.
    发明公开
    METHOD OF PREPARING WEAR AND CUT RESISTANT UHMWPE FIBERS 审中-公开

    公开(公告)号：EP3418431A1

    公开(公告)日：2018-12-26

    申请号：EP18158493.9

    申请日：2018-02-24

    申请人： Zhejiang Jinhao Specialty Fiber Co., Ltd.

    发明人： Zhang, Jianfang ,  Wang, Xinwei ,  Sun, Yongfei ,  Liu, Shuiyao ,  Gong, Wenlan ,  Wen, Wenjun

    IPC分类号： D01D1/02 ,  D01D5/04 ,  D01F1/10 ,  D01F6/04 ,  D01D5/06

    CPC分类号： D01F1/10 ,  D01D1/02 ,  D01D5/04 ,  D01D5/06 ,  D01F6/04 ,  D01F6/30 ,  D10B2321/0211 ,  D10B2401/00 ,  D10B2501/041

    摘要： In a method of preparing wear and cut resistant UHMWPE fibers, 0.1∼5 parts of a coupling agent A, 1∼20 parts of a nano additive B, 1∼20 parts of an additive C, 0.1∼5 parts of sodium stearate, 0.1∼8 parts of a nano dispersant, 0.1∼10 parts of an antioxidant are added into 1000 parts of a solvent oil, and the mixture is processed by a 1000∼20000r/min high-speed rotating emulsifier at 25∼100°C for 2∼6 hours, and the resin material is an UHMWPE resin with a viscosity-average molecular weight of 200∼8 million. 20∼200 parts of the resin material are added into a ball grinder, and the temperature is controlled at 30∼100°C, and then mother liquor is added into a ball grinder slowly at a speed of 2 parts/minute and then blended and mixed uniformly, and then vacuumed in a sealed container for 2∼6 hours, and finally processed with drafting and hot drawing and winding formation. The fibers of the present invention with the features of soft touch and comfortable wearing can be used for manufacturing products such as cut resistant gloves, stab resistant clothing, armbands, and wear resistant ropes.

    DENSIFICATION OF POLYACRYLONITRILE FIBER
    36.
    发明公开
    DENSIFICATION OF POLYACRYLONITRILE FIBER 审中-公开
    聚丙烯腈纤维的致密性

    公开(公告)号：EP3240920A1

    公开(公告)日：2017-11-08

    申请号：EP15837124.5

    申请日：2015-12-28

    申请人： Cytec Industries Inc.

    发明人： TAYLOR, Thomas, B.

    IPC分类号： D01D5/06 ,  D01F9/22

    CPC分类号： D01F9/225 ,  D01D5/06 ,  D01D5/14 ,  D01F9/22 ,  D10B2101/12

    摘要： Provided herewith is a process for improving tensile strength of precursor PAN fiber during the spinning stage in the manufacturing process. According to the process of the present invention, precursor fiber is made denser as it enters each wash bath. This progressive densification approach is useful for all PAN precursor bath draw/wash processes where a need for careful control of fiber network density and structure is required for improved carbon fiber properties.

    CONTINUOUS METHOD AND SYSTEM FOR THE PRODUCTION OF AT LEAST ONE POLYMERIC YARN AND POLYMERIC YARN
    38.
    发明公开
    CONTINUOUS METHOD AND SYSTEM FOR THE PRODUCTION OF AT LEAST ONE POLYMERIC YARN AND POLYMERIC YARN 审中-公开
    用于生产至少一根聚合物纱线和聚合物纱线的连续方法和系统

    公开(公告)号：EP3230499A2

    公开(公告)日：2017-10-18

    申请号：EP15864618.2

    申请日：2015-12-02

    申请人： Braskem America, Inc.

    发明人： BUENO, Marcos Roberto Paulino ,  BERNARDI, Alessandro ,  WESTFAHL, Harry

    IPC分类号： D01F6/04 ,  D01D5/06 ,  D02J1/22

    CPC分类号： D01F6/04 ,  D01D1/02 ,  D01D10/06

    摘要： The present invention provides a continuous method for the production of at least one polymeric yarn comprising the steps of: mixing a polymer with a first solvent generating a mixture; homogenizing the mixture; rendering the mixture inert; dosing the mixture to an extruder; immersing the mixture in a quenching bath (30), wherein an air gap is maintained before the mixture achieves the surface of the liquid of the quenching bath (30) forming at least one polymeric yarn; drawing at least once the at least one polymeric yarn; washing the polymeric yarn with a second solvent that is more volatile than the first solvent; heating the at least one polymeric yarn; drawing at room temperature, at least once, the at least one polymeric yarn; and heat drawing, at least once, the at least one polymeric yarn, wherein the mixture comprises: a polymer comprising ultra-high molecular weight polyethylene, comprising an intrinsic viscosity of from 5 dL/g to 40 dL/g, and a polydispersity index of from 2 to 10; and a first solvent capable of dissolving the polymer under the process conditions, and comprising a dynamic viscosity, measured at a temperature of 37.8 °C, according to ASTM D-445, greater than 10 cP. The present invention further provides a continuous system for the production of at least one polymeric yarn, comprising: means for mixing the polymer with a first solvent generating a mixture; means for homogenizing the mixture; means for rendering the mixture inert; means for dosing the mixture to an extruder; means for immersing the mixture in a quenching bath (30), wherein an air gap is maintained before the mixture achieves the surface of the liquid of the quenching bath (30) forming at least one polymeric yarn; means for drawing at least once the at least one polymeric yarn; means for washing for washing the at least one polymeric yarn with a second solvent that is more volatile than the first solvent; means for heating the at least one polymeric yarn; means for drawing at room temperature at least once the at least one polymeric yarn; and means for heat drawing at least once the at least one polymeric yarn, wherein the mixture comprises: a polymer comprising ultra-high molecular weight polyethylene, comprising an intrinsic viscosity of from 5dL/g to 40dL/g, and a polydispersity index of from 2 to 10; and a first solvent capable of dissolving the polymer under the process conditions and comprising a dynamic viscosity, as measured at a temperature of 37.8 °C according to the ASTM standard D-445, greater than 10 cP. Further, the present invention provides a polymeric yarn made according to the above stated method.

    摘要翻译： 本发明提供了生产至少一种聚合物纱线的连续方法，其包括以下步骤：将聚合物与第一溶剂混合，产生混合物; 均化混合物; 使混合物呈惰性; 将混合物定量投入挤出机; 将混合物浸入骤冷浴（30）中，其中在混合物达到淬火浴（30）的液体表面形成至少一根聚合物纱线之前保持气隙; 至少拉伸一根所述至少一根聚合物纱线; 用比第一溶剂更易挥发的第二溶剂洗涤聚合物纱线; 加热该至少一根聚合物纱线; 在室温下至少一次拉伸所述至少一根聚合物纱线; 和至少一次热拉伸所述至少一根聚合物纱线，其中所述混合物包含：包含超高分子量聚乙烯的聚合物，其特征粘度为5dL / g-40dL / g，多分散指数 从2到10; 和能够在工艺条件下溶解聚合物的第一溶剂，并且根据ASTM D-445在37.8℃的温度下测量的动态粘度大于10cP。 本发明进一步提供用于生产至少一种聚合物纱线的连续系统，其包括：用于将聚合物与第一溶剂混合以产生混合物的装置; 均化混合物的装置; 用于使混合物呈惰性的装置; 用于将混合物定量给挤出机的装置; 用于将混合物浸入骤冷浴（30）中的装置，其中在混合物达到骤冷浴（30）的液体表面形成至少一根聚合物纱线之前维持气隙; 用于拉伸至少一根聚合物纱线的装置; 用比所述第一溶剂更易挥发的第二溶剂清洗所述至少一根聚合物纱线的装置; 用于加热所述至少一根聚合物纱线的装置; 用于在室温下拉伸至少一根所述至少一根聚合物纱线的装置; 以及用于对所述至少一根聚合物纱线进行至少一次热拉伸的装置，其中所述混合物包含：包含超高分子量聚乙烯的聚合物，其特征粘度为5dL / g至40dL / g，多分散指数为 2至10; 以及在工艺条件下能够溶解聚合物的第一溶剂，其包含根据ASTM标准D-445在37.8℃的温度下测量的动态粘度大于10cP。 此外，本发明提供了根据上述方法制造的聚合物纱线。