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    Flat synthetic fiber, method for preparing the same and non-woven fabric prepared using the same
    72.
    发明公开
    Flat synthetic fiber, method for preparing the same and non-woven fabric prepared using the same 有权
    Flache synthetische Faser，Herstellungsverfahren und daraus hergestellter Vliesstoff

    公开(公告)号：EP1211338A1

    公开(公告)日：2002-06-05

    申请号：EP01128755.4

    申请日：2001-12-03

    申请人： OJI PAPER CO., LTD.

    发明人： Deguchi, Tomonari ,  Yoshimura, Chitose ,  Terao, Tomoyuki

    IPC分类号： D01F6/74 ,  D01F6/60 ,  D01D5/253 ,  D21H13/20 ,  D21H13/26

    CPC分类号： D21H13/26 ,  D01D5/253 ,  D01F6/605 ,  D01F6/74 ,  D21H17/52 ,  H05K1/0366 ,  Y10T428/2913 ,  Y10T428/2967 ,  Y10T428/2976

    摘要： The present invention provides a partially or whole flat synthetic fiber which is suitably used for preparing a high strength non-woven fabric even if the basis weight is very small, as well as a non-woven fabric prepared using such flat synthetic fibers. According to the present invention, a flat polybenzazole fiber such as PBO fiber is provided which has a flattened portion having a degree of flatness defined by the ratio of the long diameter/the short diameter of the cross section of the fiber being 2 or higher and having a short diameter being 7µm or less. Also, a partially flat synthetic fiber is provided which has a flattened portion along the longitudinal direction of the fiber, wherein the ratio of Wmax (the maximum fiber width)/Wmin (narrowest fiber width) is 2 or higher or wherein the ratio of Wmax (the maximum fiber width)/Wav (average fiber width) is 1.5 or higher.

    摘要翻译： 本发明提供了即使基重非常小也适用于制备高强度无纺织物的部分或全部扁平合成纤维，以及使用这种扁平合成纤维制备的无纺织物。 根据本发明，提供一种扁平的聚吲哚纤维如PBO纤维，其具有扁平度，该扁平部分具有由纤维横截面的长径/短径的比为2或更高的平坦度， 其直径为7μm或更小。 此外，提供了沿着纤维的长度方向具有扁平部分的部分平坦的合成纤维，其中Wmax（最大纤维宽度）/ Wmin（最窄纤维宽度）的比率为2以上，或者Wmax （最大纤维宽度）/ Wav（平均纤维宽度）为1.5以上。

    HEAT-RESISTANT FIBER PAPER
    73.
    发明公开
    HEAT-RESISTANT FIBER PAPER 失效
    HITZEBESTÄNDIGESPAPIER

    公开(公告)号：EP0930393A1

    公开(公告)日：1999-07-21

    申请号：EP98921857.3

    申请日：1998-05-28

    申请人： TEIJIN LIMITED

    发明人： MURAYAMA, Sadamitsu, Teijin Ltd, Osaka Res. Cnt. ,  MATSUI, Michikage, Teijin Ltd, Osaka Res. Cnt

    IPC分类号： D21H13/26 ,  D21H13/20 ,  D21H13/24 ,  H05K1/03 ,  C08J5/06

    CPC分类号： C08J5/06 ,  D21H13/20 ,  D21H13/24 ,  D21H13/26 ,  D21H25/06 ,  H05K1/0366 ,  H05K2201/0278 ,  H05K2201/0293 ,  H05K2203/1105 ,  Y10S428/903 ,  Y10T428/2969 ,  Y10T428/31562 ,  Y10T428/31681 ,  Y10T428/31725 ,  Y10T428/31993

    摘要： A heat resistant fiber sheet composed of staple fibers consisting of a heat resistant organic high molecular polymer and fibrids consisting of a heat resistant organic high molecular polymer as main components, having excellent heat resistance, dimensional stability to heat, interlaminar peeling strength, electric insulation resistance under a high humidity, etc., and also good resin impregnating property in spite of having a high bulk density, and especially suitable for a base substrates for an electric insulating material and a laminate for an electric circuit, is obtained by setting the amount of the staple fibers occupying in the total amount of the sheet as 40 to 97 % by weight and the amount of the fibrids as 3 to 60 % by weight and partially softening and/or melting the fibrids so as to act as a binder.

    摘要翻译： 由耐热有机高分子聚合物和由耐热有机高分子聚合物组成的纤维状物作为主要成分的短纤维组成的耐热纤维片材，具有优异的耐热性，尺寸对热稳定性，层间剥离强度，电绝缘电阻 在高湿度等下，并且尽管具有高的堆积密度，并且特别适合于用于电绝缘材料的基底和用于电路的层压体的树脂浸渍性能通过将 占片材总量的短纤维为40〜97重量％，纤条体的量为3〜60重量％，部分软化和/或熔融纤条体，以起粘合剂的作用。