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    Coextruded polymeric article and method of making the same
    1.
    发明授权
    Coextruded polymeric article and method of making the same 有权

    公开(公告)号：US12280917B2

    公开(公告)日：2025-04-22

    申请号：US17781144

    申请日：2020-12-04

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Michael B. Runge ,  Vasav Sahni ,  Ronald W. Ausen ,  Scott M. Tapio ,  William J. Kopecky

    IPC: B65D33/25 ,  B29C48/12 ,  B29C48/21 ,  B29K23/00 ,  B29L5/00 ,  B29L31/00

    Abstract: A system including a polymeric sheet. The polymeric sheet comprises a base sheet having a first surface and a second surface opposite the first surface and a multiplicity of spaced rails projecting from the first surface of the base sheet. The rails comprise a stem portion attached to and substantially upright from the first surface of the base sheet and a top portion on the distal end of the stem opposite the base sheet. The top portion comprises a first surface opposite the base sheet and a second surface facing the first surface of the base sheet. Additionally, the rails have a length greater than the width of the stems. The first surface of the base sheet, the second surface of the top portion and the surface of the stem defines a cavity with walls, and an adhesive coated on at least a portion of the cavity wall.

    COEXTRUDED POLYMERIC NETTINGS AND METHOD OF MAKING THE SAME
    5.
    发明申请
    COEXTRUDED POLYMERIC NETTINGS AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20220118670A1

    公开(公告)日：2022-04-21

    申请号：US17310666

    申请日：2020-02-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Ronald W. Ausen ,  William J. Kopecky ,  Michael W. Voigt ,  Naimul Karim ,  Vasav Sahni

    IPC: B29C48/18 ,  B29D28/00 ,  B29C48/00

    Abstract: Article comprising first and second coextruded polymeric nettings, the first and second coextruded polymeric nettings each having a machine direction comprising: a plurality of pairs of: first segments each having first and second opposed major surfaces and a thickness, the first segments comprising first material; second segments comprising second material, wherein adjacent first segments are joined together via a second segment, wherein the second segments extend from the second major surface past the first major surface of each first adjacent segment and has a distal end, the second segments having first and second opposed major surfaces, wherein there is a gap between adjacent second segments; and a third material comprising adhesive, different from the first and second materials on at least one the first or second major surfaces first segment, wherein the first segments, second segments, and third material each extend continuously for at least 5 mm in the machine direction, and wherein first and second materials of adjacent pairs are periodically bonded together in the machine direction, wherein a portion of some of the first segments of the first coextruded polymeric netting are engaged between some of the adjacent first segments of the second coextruded polymeric netting. Netting described herein are useful, for example, for tape landing zones, bundling applications where it is desired to maintain breathability without an air tight barrier, and bundling applications where it is desired to have compression wrap without adhesion to the wrapped substrate.

    POLYMERIC LAYERS AND METHODS OF MAKING THE SAME
    9.
    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

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

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

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

    Abstract: 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.

    Abstract translation: 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。

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