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    POLYMERIC LAYERS AND METHODS OF MAKING THE SAME
    4.
    发明申请
    POLYMERIC LAYERS AND METHODS OF MAKING THE SAME 审中-公开
    聚合物层及其制备方法

    公开(公告)号：US20160151945A1

    公开(公告)日：2016-06-02

    申请号：US14900239

    申请日：2014-06-16

    申请人： 3M INNOVATIVE PROPERTIES COMPANY

    发明人： Ronald W. Ausen ,  Ronald R. Borst ,  Thomas P. Hanschen ,  William J. Kopecky ,  Michelle L. Legatt ,  Wei Zhang

    IPC分类号： B29C43/24 ,  B29C43/22 ,  A61L31/04

    CPC分类号： B29C43/24 ,  A61L31/048 ,  B29C43/22 ,  B29C43/222 ,  B29D28/00 ,  B29K2105/253 ,  B29K2995/0065 ,  B29L2031/753

    摘要： Polymeric layers (50) comprising an array of openings (56) extending between the first and second major surfaces (52, 54), wherein the openings (60) each have a series of areas through the openings from the first and second major surfaces ranging from minimum to maximum areas. There is a total area and a total open area for each of the first and second major surfaces, wherein the total open area for each of the first and second major surfaces is not greater than 50 percent of the total area of the respective major surface. For at least a majority of the openings (56), the minimum area is not at either major surface. Methods for making the polymeric layers are also disclosed. Polymeric layers are useful, for example, as components in personal care garments such as diapers and feminine hygiene products and medical skin applications where breathability is desired. They can also be useful for filtering (including liquid filtering) and acoustic applications.

    摘要翻译： 聚合物层（50）包括在第一和第二主表面（52,54）之间延伸的开口阵列（56），其中开口（60）各自具有穿过来自第一和第二主表面的开口的一系列区域 从最小到最大。 第一和第二主表面的总面积和总开口面积，其中第一和第二主表面中的每一个的总开口面积不大于相应主表面总面积的50％。 对于至少大部分开口（56），最小面积不在任何主表面。 还公开了制备聚合物层的方法。 聚合层例如可用作个人护理服装中的组分，例如尿布和女性卫生用品以及需要透气性的医用皮肤应用。 它们也可用于过滤（包括液体过滤）和声学应用。