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    NONWOVEN FABRIC FORMED FROM POLYVINYL BUTYRAL CONTINUOUS FIBERS, AND MANUFACTURING METHOD THEREFOR
    4.
    发明公开
    NONWOVEN FABRIC FORMED FROM POLYVINYL BUTYRAL CONTINUOUS FIBERS, AND MANUFACTURING METHOD THEREFOR 审中-公开
    由聚乙烯醇缩丁醛连续纤维形成的非织造布及其制造方法

    公开(公告)号：EP3199683A1

    公开(公告)日：2017-08-02

    申请号：EP15844544.5

    申请日：2015-09-25

    申请人： Kuraray Co., Ltd.

    发明人： SASAKI, Masahiro ,  SHIROTANI, Yasuhiro

    IPC分类号： D04H3/007 ,  B32B5/26 ,  B32B27/30

    CPC分类号： D04H3/007 ,  B32B5/26 ,  B32B27/30 ,  D01D5/08 ,  D01F6/34 ,  D10B2321/06

    摘要： A web is formed by integrating continuous fibers produced by melt-spinning, at a temperature of 220 °C or iower, polyvinyl butyral pellets having a butyralization degree of 50 to 90 mass%, an MFR of 0.5 to 45 g/10 min at 150 °C and 2.16 kgf, an acid value of 0.12 mgKOH/g or less, and a 1-butanal content of 5 mass ppm or less, to give a meltblown nonwoven fabric or a spunbonded nonwoven fabric having a 1-butanal content of 10 mass ppm or less. The present invention thus provides a nonwoven fabric formed from PVB continuous fibers whose distinct odor is suppressed, and a manufacturing method therefor.

    摘要翻译： 通过在220℃或更低的温度下将通过熔融纺丝生产的连续纤维一体化，形成具有50至90质量％的丁缩醛化度的聚乙烯醇缩丁醛粒料，150至150g / 10min的MFR为0.5至45g / ℃，2.16kgf，酸值为0.12mgKOH / g以下，1-丁醛含量为5质量ppm以下，得到1-丁醛含量为10质量％的熔喷型无纺布或纺粘型无纺布 ppm或更低。 因此，本发明提供了一种由PVB连续纤维形成的无纺织物及其制造方法，所述PVB连续纤维的异味被抑制。

    NONWOVEN FABRIC AND PRODUCTION METHOD FOR SAME
    7.
    发明公开
    NONWOVEN FABRIC AND PRODUCTION METHOD FOR SAME 审中-公开
    非织造布及其制造方法

    公开(公告)号：EP3318667A1

    公开(公告)日：2018-05-09

    申请号：EP16818032.1

    申请日：2016-06-30

    申请人： Kuraray Co., Ltd.

    发明人： SHIRAISHI, Ikuhisa ,  SHIROTANI, Yasuhiro

    IPC分类号： D04H3/16 ,  D01D5/08

    CPC分类号： D04H3/16 ,  D01D5/084 ,  D01D5/0985 ,  D01F6/64 ,  D01F6/74 ,  D04H1/42 ,  D04H1/56 ,  D04H3/009

    摘要： A nonwoven fabric including fibers that contain a polymer having a glass transition temperature of greater than or equal to 50°C as a main component, and having a vertical strength of greater than or equal to 1 N/5 cm per 1 g/m 2 , and by satisfying both of the following conditions (1) and (2), a nonwoven fabric having sufficient strength to be handled alone and including fibers that contain a polymer having a Tg of greater than or equal to 50°C as a main component without performing a post processing such as emboss processing, calender processing, or spunlace processing, and a method for producing the nonwoven fabric can be provided. (1) A density is 0.01 to 0.4 g/cm 3 . (2) A proportion of parts with a density exceeding 0.4 g/cm 3 is less than or equal to 3% in a cross section in a thickness direction.

    摘要翻译： 1。一种无纺布，其含有以玻璃化转变温度为50℃以上的聚合物为主要成分，且纵向强度为1g / m 2以上1N / 5cm以上的纤维， （1）和（2）两者满足下述条件（1）和（2）两者的情况下，可获得具有足够强度的无纺布，其可单独使用并且包含含有Tg为50℃以上的聚合物的纤维作为主要组分 进行压花加工，压延加工，水刺加工等后加工，可以提供无纺布的制造方法。 （1）密度为0.01〜0.4g / cm 3。 （2）在厚度方向的截面中，密度超过0.4g / cm 3的部分的比例小于或等于3％。

    INSULATING NONWOVEN FABRIC AND PRODUCTION METHOD THEREOF, AND INSULATION MATERIAL
    9.
    发明公开
    INSULATING NONWOVEN FABRIC AND PRODUCTION METHOD THEREOF, AND INSULATION MATERIAL 审中-公开
    ISOLIERENDEE VLIESSTOFF UND HERSTELLUNGSVERFAHRENDAFÜRSOWIE ISOLATIONSMATERIAL

    公开(公告)号：EP3124666A1

    公开(公告)日：2017-02-01

    申请号：EP15768402.8

    申请日：2015-03-24

    申请人： Kuraray Co., Ltd.

    发明人： SHIROTANI, Yasuhiro

    IPC分类号： D04H3/009

    摘要： Provided are a nonwoven fabric mainly composed of amorphous polyetherimide having a melt viscosity at 330°C of 100 to 3000 Pa·s, and satisfying conditions of: 1) an average fiber diameter of 0.5 to 5 µm; 2) an air permeability of more than or equal to 20 seconds/100 mL; and 3) a withstand voltage of more than or equal to 15 kV/mm, an insulating material using the nonwoven fabric, and a method for manufacturing the nonwoven fabric including continuously treating fibers between a pair of rolls at a temperature of 150 to 300°C and a linear pressure of 100 to 500 kg/cm.

    摘要翻译： 本发明提供一种主要由无定形聚醚酰亚胺构成的无纺布，其熔融粘度在330℃为100〜3000Pa·s，满足以下条件：1）平均纤维直径为0.5〜5μm; 2）透气度大于或等于20秒/ 100mL; 以及3）耐受电压为15kV / mm以上的绝缘材料，以及使用该无纺布的绝缘材料的制造方法，以及在150〜300℃的温度下在一对辊之间连续处理纤维的无纺布的制造方法 C，线性压力为100〜500kg / cm。

    FLAME-RETARDANT NONWOVEN FABRIC, MOLDED ARTICLE, AND COMPOSITE LAMINATE
    10.
    发明公开
    FLAME-RETARDANT NONWOVEN FABRIC, MOLDED ARTICLE, AND COMPOSITE LAMINATE 有权
    FLMMEMEMENDER VLIESSTOFF，FORMARTIKEL UND VERBUNDLAMINAT

    公开(公告)号：EP3015586A1

    公开(公告)日：2016-05-04

    申请号：EP14816776.0

    申请日：2014-06-26

    申请人： Kuraray Co., Ltd.

    发明人： SASAKI, Masahiro ,  SHIROTANI, Yasuhiro

    IPC分类号： D04H3/009 ,  D04H1/4326 ,  D04H3/16 ,  D01F6/74

    CPC分类号： D04H1/54 ,  D01F6/74 ,  D04H1/551 ,  D04H1/56 ,  D04H3/16

    摘要： With a nonwoven fabric made of fibers mainly composed of amorphous polyetherimide having a melt viscosity at 330°C from 100 to 3000 Pa·s and an average fiber diameter from 1 to 10 µm, a nonwoven fabric which is excellent in flame retardancy and can have a small thickness within a range from 5 to 900 µm with strength being maintained because of its denseness can be provided.

    摘要翻译： 使用由主要由无机聚醚酰亚胺构成的纤维制成的无纺布，其熔融粘度为330℃，100〜3000Pa·s，平均纤维直径为1〜10μm，阻燃性优异的无纺布， 可以提供在5至900μm的范围内的小厚度，其强度由于其致密性而被保持。