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    Coextruded polymeric article and method of making the same
    21.
    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
    29.
    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.

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