Apertured film with raised profile elements method for making the same, and the products thereof
    2.
    发明申请
    Apertured film with raised profile elements method for making the same, and the products thereof 审中-公开
    具有凸起轮廓元件的打孔膜及其制品

    公开(公告)号:US20050163967A1

    公开(公告)日:2005-07-28

    申请号:US10798041

    申请日:2004-03-11

    Abstract: The present invention generally relates to an apertured or reticulated film, and more specifically, the present invention relates to a method of imparting one or more raised elements into a previously apertured or reticulated film utilizing a forming surface. A forming apparatus can accept an apertured film, preferably but not limited to a thermoplastic composition, and impart one or more raised continuous or discontinuous profiled elements into the surface of the apertured film by exposing the apertured film to an air stream having an elevated temperature (such as by exposure of the air stream to direct contact with a heating element). The heated air stream affects the apertured film by inducing the film to deflect onto profiled elements defined in the forming surface of the forming apparatus.

    Abstract translation: 本发明一般涉及多孔或网状膜,更具体地说,本发明涉及一种利用成形表面将一个或多个凸起元件赋予先前开孔或网状膜的方法。 成形设备可以接受多孔膜,优选但不限于热塑性组合物,并且通过将多孔膜暴露于具有升高的温度的空气流中将一个或多个凸起的连续或不连续成型元件赋予多孔膜的表面 例如通过暴露气流直接与加热元件接触)。 加热的空气流通过诱导膜偏转到限定在成形装置的成形表面中的成型元件上而影响多孔膜。

    Breathable film compositions and articles and method
    3.
    发明授权
    Breathable film compositions and articles and method 有权
    透气膜组合物及制品及方法

    公开(公告)号:US06191221B1

    公开(公告)日:2001-02-20

    申请号:US09163128

    申请日:1998-09-29

    CPC classification number: C08J5/18

    Abstract: A breathable film is composed of a uniform blend of two thermoplastic resins, one having a high moisture vapor transmission rate and the other having a low rate. The blend is melt extruded into a film having good handling characteristics and a controlled degree of moisture vapor transmission, as determined by blend ratio per unit of film thickness.

    Abstract translation: 透气膜由两种热塑性树脂的均匀混合物组成,一种具有高的水蒸气透过率,另一种具有低的速率。 将共混物熔融挤出成具有良好的处理特性和受控程度的水蒸气透过的膜,通过每单位膜厚度的共混比确定。

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