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    High strength-high modulus polypropylene fiber and method for producing the same
    2.
    发明专利
    High strength-high modulus polypropylene fiber and method for producing the same 有权
    高强度聚丙烯纤维及其制造方法

    公开(公告)号：JP2013249554A

    公开(公告)日：2013-12-12

    申请号：JP2012124416

    申请日：2012-05-31

    申请人： Toyota Motor Corp ,  トヨタ自動車株式会社 ,  Univ Of Tokyo ,  国立大学法人 東京大学

    发明人： KITAGAWA TATSUYA ,  IWATA TADAHISA ,  HONGO CHIZURU

    IPC分类号： D01F6/06 ,  D01D5/088 ,  D02J1/22

    摘要： PROBLEM TO BE SOLVED: To provide a polypropylene fiber that has high strength and high modulus without using a special raw material and/or special means.SOLUTION: There is provided a method for producing a polypropylene fiber including: a spinning step of a melt and extruded fiber, in which polypropylene is melt and extruded and the melt and extruded fiber is spun while it is drawn at a temperature of the glass-transition temperature of polypropylene or higher and the glass-transition temperature +20°C or lower so that the ratio of the drawing speed to the extruding speed falls in the range of 50 to 400; a temperature maintaining step for maintaining the melt and extruded fiber obtained in the spinning step of a melt and extruded fiber at a temperature of the glass-transition temperature of polypropylene or higher and the glass-transition temperature +20°C or lower; a drawing step for drawing the melt and extruded fiber after the temperature maintaining step; and a heat treating step for heat treating the fiber at a temperature of 110°C or higher and lower than 150°C while applying a stress in the range of 200 to 450 N/mmto the drawn fiber obtained in the drawing step.

    摘要翻译： 要解决的问题：提供一种在不使用特殊原料和/或特殊装置的情况下具有高强度和高模量的聚丙烯纤维。解决方案：提供一种生产聚丙烯纤维的方法，包括：熔融纺丝步骤 挤出纤维，其中聚丙烯熔融挤出，熔融挤出的纤维在聚丙烯或更高的玻璃化转变温度和玻璃化转变温度+ 20℃或更低的温度下拉伸时旋转， 拉伸速度与挤出速度的比率在50〜400的范围内; 在熔融挤出纤维的纺丝工序中得到的熔融挤出纤维在聚丙烯的玻璃化转变温度以上，玻璃化转变温度+ 20℃以下的温度保持工序; 在温度保持步骤之后拉伸熔融物和挤压纤维的拉伸步骤; 以及在110℃以上且低于150℃的温度下对纤维进行热处理，同时向拉伸步骤中得到的拉伸纤维施加200〜450N / mm的应力的热处理工序。

    Hollow modified crimped yarn
    4.
    发明专利
    Hollow modified crimped yarn 审中-公开
    中空修改犯罪

    公开(公告)号：JP2013023794A

    公开(公告)日：2013-02-04

    申请号：JP2011161994

    申请日：2011-07-25

    申请人： Teijin Fibers Ltd ,  帝人ファイバー株式会社

    发明人： MORISHIMA KAZUHIRO

    IPC分类号： D01F6/62 ,  D01D5/088 ,  D01D5/24 ,  D01F1/08

    摘要： PROBLEM TO BE SOLVED: To provide a hollow modified crimped yarn having a sufficient crimping property, and capable of obtaining a fabric having excellent bulkiness, excellent lightweight feeling and a heat-retaining property when being woven.SOLUTION: There is provided a hollow modified crimped yarn as a fiber having a modified cross section, which is composed of a fiber-forming thermoplastic polymer and has at least one hollow portion in the fiber cross section and a plurality of protrusions radially protruding from the outer periphery to the center of the hollow portion, the hollow modified crimped yarn satisfying the followings: (1) An actual percentage of crimp (VC) is 1 to 20%; (2) A percentage of crimp (VD) after dry heat treatment at a temperature of 150°C is 5 to 30%; and (3) The fiber is constituted by 10 or more single yarns.

    摘要翻译： 要解决的问题：提供具有足够卷曲性的中空改性卷曲纱，并且能够获得织造时具有优异蓬松性，优异的轻质感和保温性的织物。 解决方案：提供一种具有改性横截面的纤维的中空改性卷曲纱，其由纤维形成热塑性聚合物组成，并且在纤维横截面中具有至少一个中空部分和多个突起 从中空部的外周到中心突出，中空改性卷曲线满足以下条件：（1）卷曲（VC）的实际百分比为1〜20％ （2）150℃干燥热处理后的卷曲（VD）的百分比为5〜30％。 （3）纤维由10根以上的单丝构成。 版权所有（C）2013，JPO＆INPIT

    Bristle material for polishing brush, method for manufacturing the same, and polishing brush
    6.
    发明专利
    Bristle material for polishing brush, method for manufacturing the same, and polishing brush 审中-公开
    用于抛光刷的BRISTLE材料，其制造方法和抛光刷

    公开(公告)号：JP2010234477A

    公开(公告)日：2010-10-21

    申请号：JP2009084728

    申请日：2009-03-31

    申请人： Toray Monofilament Co Ltd ,  東レ・モノフィラメント株式会社

    发明人： OZAKI KOJI

    IPC分类号： B24D11/00 ,  A46D1/00 ,  B24D13/10 ,  B24D13/14 ,  D01D5/088 ,  D01F6/76 ,  D01F6/94

    摘要： PROBLEM TO BE SOLVED: To provide a bristle material for a polishing brush superior in heat resistance and polishing property compared with conventional bristle materials for the polishing brush and particularly suitable for dry polishing work of a stainless steel plate and the like, and the polishing brush.
    SOLUTION: The bristle material for the polishing brush is composed of a monofilament whose component element is a polyether ether ketone resin composition containing polishing abrasive particles, wherein the porosity rate in the monofilament is 15% or less.
    COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译： 要解决的问题：与用于抛光刷的常规刷毛材料相比，为了提供耐热性和抛光性优异的抛光刷用刷毛材料，特别适用于不锈钢板等的干式抛光加工，以及 抛光刷。 解决方案：抛光刷的刷毛材料由单丝组成，其单组分是含有抛光磨料颗粒的聚醚醚酮树脂组合物，其中单丝中的孔隙率为15％以下。 版权所有（C）2011，JPO＆INPIT