Microporous fibers with improved properties
    4.
    发明授权
    Microporous fibers with improved properties 失效
    具有改善性能的微孔纤维

    公开(公告)号:US5766760A

    公开(公告)日:1998-06-16

    申请号:US697993

    申请日:1996-09-04

    IPC分类号: D01D5/247 D02G3/00

    摘要: A porous fiber includes a distinctive configuration of voids therein to achieve advantageous levels of wettability, liquid penetration and mechanical properties. The fiber has a denier of not more than about 50, and a percent elongation at break of not less than about 30%. The fiber can also have a tensile strength at break of not less than about 200 MPa.

    摘要翻译: 多孔纤维包括其中的空隙的独特结构,以实现有利的润湿性,液体渗透性和机械性能水平。 纤维的旦数不大于约50,断裂伸长百分比不小于约30%。 纤维的断裂拉伸强度也可以不低于约200MPa。

    Method of forming a 3-dimensional fiber into a web
    7.
    发明授权
    Method of forming a 3-dimensional fiber into a web 有权
    将三维纤维形成网的方法

    公开(公告)号:US06881375B2

    公开(公告)日:2005-04-19

    申请号:US10232034

    申请日:2002-08-30

    摘要: A method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R1 and the second component has a recovery percentage R2, wherein R1 is higher than R2. The first and second components are directed through a spin pack to form a plurality of continuous, molten fibers. The molten fibers are then muted through a quenching chamber to form a plurality of continuous cooled fibers. The coiled fibers are then routed through a drawing unit to form a plurality of continuous, solid linear fibers. Each of the solid fibers is then stretched by at least 50 percent before it is allowed to relax. The relaxation step forms the linear fibers into a plurality of continuous 3-dimensional fibers each having a coiled configuration over at least a portion of its length. The continuous 3-dimensional, coiled fibers are then deposited onto a moving support to form a web.

    摘要翻译: 一种方法包括共挤出第一组分和第二组分的步骤。 第一组分具有回收百分比R 1,并且第二组分具有回收百分比R 2,其中R 1高于R 2 。 第一和第二组分被引导通过纺丝组合以形成多个连续的熔融纤维。 然后熔化的纤维通过淬火室静音以形成多个连续冷却的纤维。 卷绕的纤维然后被引导通过拉伸单元以形成多个连续的固体线性纤维。 然后将每根固体纤维拉伸至少50%,然后放松。 松弛步骤将线性纤维形成多个连续的三维纤维,每个三维纤维在其长度的至少一部分上具有卷曲形状。 然后将连续的三维线圈纤维沉积到移动的支撑件上以形成网。

    3-dimensional fiber and a web made therefrom
    8.
    发明授权
    3-dimensional fiber and a web made therefrom 有权
    三维纤维和由其制成的网

    公开(公告)号:US06677038B1

    公开(公告)日:2004-01-13

    申请号:US10232033

    申请日:2002-08-30

    IPC分类号: D01F800

    摘要: A 3-dimensional fiber is disclosed that is constructed from first and second components. The first component is capable of being stretched and has a recovery percentage R1. The second component is also capable of being stretched and has a recovery percentage R2, wherein R1 is higher than R2. The first and second components are combined to form a linear fiber having an initial length that can be stretched at least 50%. The stretched fiber has the ability to retract to a length of from about 5% to about 90% of the stretched length to form a 3-dimensional fiber that exhibits elongation properties of at least 250% in at least one direction from the retracted length before the fiber becomes linear. A web formed from a plurality of 3-dimensional fibers is also disclosed.

    摘要翻译: 公开了由第一和第二部件构成的三维光纤。 第一个组件能够被拉伸并具有恢复百分比R1。 第二组分也能拉伸并具有回收率R2,其中R1高于R2。 组合第一和第二组分以形成具有至少50%拉伸的初始长度的线性纤维。 拉伸的纤维具有缩回到拉伸长度的约5%至约90%的长度的能力,以形成在从缩回长度的至少一个方向上显示至少250%的伸长性能的3维纤维 纤维变成线性。 还公开了由多个三维纤维形成的网。

    Process for making microporous films with improved properties
    9.
    发明授权
    Process for making microporous films with improved properties 失效
    制备具有改进性能的微孔膜的方法

    公开(公告)号:US5800758A

    公开(公告)日:1998-09-01

    申请号:US932817

    申请日:1997-09-16

    IPC分类号: B29C55/00 C08J5/18 B29C67/20

    摘要: A distinctive technique for making a microporous film includes a stretching of a layer composed of a polymer material and at least about 5 wt % of a particulate filler material. The particulate filler material has been distinctively treated with an operative amount of surface-active material having a HLB value of not less than about 6. Desirably, the stretching includes a biaxial stretching of the polymer layer.

    摘要翻译: 用于制造微孔膜的独特技术包括由聚合物材料和至少约5重量%的颗粒填料材料组成的层的拉伸。 已经用HLB值不小于6的操作量的表面活性材料明显地处理了颗粒状填充材料。期望地,拉伸包括聚合物层的双轴拉伸。