Extrusion die and process
    1.
    发明授权
    Extrusion die and process 失效
    挤出模具和工艺

    公开(公告)号:US06767492B2

    公开(公告)日:2004-07-27

    申请号:US10185218

    申请日:2002-06-27

    IPC分类号: B29C4706

    摘要: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.

    摘要翻译: 公开了一种模具设备,使用模具设备来生产共挤出的聚合物制品的方法,以及使用模具设备和方法制造的共挤出的聚合物制品。 模具设备包括中空叶片,其构造成将材料挤出到模具内的腔室中,从而产生共挤压纤维网。 共挤出纤维网在横向方向上具有多个不同的不连续相,这些相具有均匀的宽度,如任何三个连续相的变化系数小于8%所示。 这些相是基本上连续的下卷材并且被具有两层或更多层的基体包围。