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    METHOD AND SYSTEM OF DELIVERING ADDITIVES FOR MOLDING
    2.
    发明申请
    METHOD AND SYSTEM OF DELIVERING ADDITIVES FOR MOLDING 审中-公开

    公开(公告)号：WO2021044265A1

    公开(公告)日：2021-03-11

    申请号：PCT/IB2020/058026

    申请日：2020-08-27

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SUBRAMANIAM, Ramnath ,  MCNULTY, Jason D.

    IPC: B29C45/18

    Abstract: Methods and systems of delivering liquid additives in a molding system are provided. A charging sensor is provided to monitor the status of the injection charging mechanism of the molding system which charges, meters or doses an injection volume of molding material. A dosing instruction is generated based on the charging status signal. The additive pump controls the delivering of the liquid additives into the injection unit based on the dosing instruction, while the injection charging mechanism is charging the injection volume of molding material.

    DUAL LAYER SOUND-ABSORBING PANELS COMPRISING A CORE CONSISTING OF CONNECTED CELLS, WHEREIN SOME OF THE CELL WALLS HAVE OPENINGS
    4.
    发明申请
    DUAL LAYER SOUND-ABSORBING PANELS COMPRISING A CORE CONSISTING OF CONNECTED CELLS, WHEREIN SOME OF THE CELL WALLS HAVE OPENINGS 审中-公开

    公开(公告)号：WO2021116888A1

    公开(公告)日：2021-06-17

    申请号：PCT/IB2020/061608

    申请日：2020-12-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： MCNULTY, Jason D. ,  JONZA, James M. ,  KUDUVA RAMAN THANUMOORTHY, Ramasubramani ,  SONNEK, Benjamin G.

    IPC: B32B3/06 ,  B32B3/12 ,  B32B3/26 ,  B32B37/00 ,  B60R13/08 ,  E04B1/86 ,  G10K11/172 ,  B29C43/30 ,  E04B1/84

    Abstract: An article comprising, a first panel, wherein the first panel comprises a layer having first and second opposed major surfaces and a core comprising a plurality of walls extending from the second major surface of the layer providing a series of connected open-faced cells, wherein some of the cell walls have openings providing fluid communication between a series of at least three cells, wherein each cell wall has a plurality of sides, and wherein the first panel has at least a first opening extending between the first and second major surfaces of the layer into at least one cell in the series; a second panel, wherein the second panel comprises first and second layers each having first and second opposed major surfaces and a core disposed therebetween, wherein the core has a plurality of walls extending from the second major surface of the first layer providing a series of connected cells, wherein some of the cell walls have openings providing fluid communication between a series of at least three cells, wherein each cell wall has a plurality of sides, and wherein the second panel has at least a second opening extending between the first and second major surfaces of the first layer into at least one cell in the series; wherein the first panel and the second panel are bonded between the core of the first panel and the core of the second panel; and wherein the open-faced cells of the first panel face the first major surface of the first layer of the second panel.

    MOLDED ABRASIVE ROTARY TOOL
    8.
    发明申请
    MOLDED ABRASIVE ROTARY TOOL 审中-公开

    公开(公告)号：WO2021090121A1

    公开(公告)日：2021-05-14

    申请号：PCT/IB2020/060147

    申请日：2020-10-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SVENTEK, Bruce A. ,  BAIRD, David G. ,  LOPER, Stephen C. ,  JAVID, Samad ,  MCNULTY, Jason D. ,  SONNEK, Benjamin G.

    IPC: B24D13/12 ,  B24D5/02 ,  B24D5/04 ,  B24D5/00 ,  B24D3/28 ,  B24B37/24

    Abstract: The disclosure is generally directed to a method of manufacturing an abrasive rotary tool using a molded elastic layer. A mold includes a cavity with a peripheral surface. An abrasive sheet is positioned so that a working surface of the abrasive sheet is positioned along at least a portion of the peripheral surface. A spindle is positioned within the mold to create a region between the spindle and the abrasive sheet. An elastomeric precursor material is injected into the region and solidified to form an elastic layer. As a result, the elastic layer is in direct contact with at least a portion of the opposed surface of the abrasive sheet and at least a portion of the exterior surface of the spindle. In this way, an abrasive rotary tool may be manufactured without using adhesive layers and/or fastening means.

    ARTICLES INCLUDING PANELS AND MOLDED STRUCTURES AND METHODS OF MAKING SAME
    9.
    发明申请
    ARTICLES INCLUDING PANELS AND MOLDED STRUCTURES AND METHODS OF MAKING SAME 审中-公开

    公开(公告)号：WO2021059088A1

    公开(公告)日：2021-04-01

    申请号：PCT/IB2020/058635

    申请日：2020-09-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： MCNULTY, Jason D. ,  PERIN, Dino ,  JONZA, James M.

    IPC: B29C45/14 ,  B60R13/08 ,  B32B3/12 ,  G10K11/172 ,  B29L31/60

    Abstract: A method of making an article is provided, including placing at least a portion of a panel in an injection molding die and overmolding at least one molded structure on a surface of the panel in the injection molding die, wherein the molded structure includes a foam composition. An article is also provided including a material-to-material connection between the surface of a panel and a molded structure. The panel includes first and second layers and a core disposed there between, wherein the core has a plurality of walls providing a series of connected cells. Some of the cell walls have openings providing fluid communication between a series of at least 3 cells, and the opening in a cell wall has an area that is at least 50 percent of the area of a side of that cell wall. Articles such as panels, walls, or other parts with curved surfaces can be formed according to certain exemplary embodiments. The articles are useful for absorbing sound in a designed frequency range.

    SOUND-ABSORBING PANELS COMPRISING A CORE CONSISTING OF CONNECTED CELLS, WHEREIN SOME OF THE CELL WALLS HAVE OPENINGS
    10.
    发明申请
    SOUND-ABSORBING PANELS COMPRISING A CORE CONSISTING OF CONNECTED CELLS, WHEREIN SOME OF THE CELL WALLS HAVE OPENINGS 审中-公开
    包括由连接的细胞构成的芯的吸声板，其中一些细胞壁具有开口

    公开(公告)号：WO2018034949A1

    公开(公告)日：2018-02-22

    申请号：PCT/US2017/046399

    申请日：2017-08-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： JONZA, James M. ,  GERDES, Ronald W. ,  HERDTLE, Thomas ,  KALISH, Jeffrey P. ,  MCNULTY, Jason D. ,  KNECHT, Harold C., III

    IPC: B32B3/12 ,  B32B3/26 ,  E04B1/84 ,  E04B1/86 ,  G10K11/16 ,  G10K11/168 ,  G10K11/172 ,  B60R13/08

    Abstract: Panels comprising first and second layers and a core disposed there between, wherein the core has a plurality of walls providing a series of connected cells, wherein some of the cell walls have openings providing fluid communication between a series of at least 3 cells, and wherein the opening in a cell wall has an area that is at least 50 percent of the area of a side of that cell wall. Exemplary embodiments of panels described herein can be formed articles such as panels, walls, or other parts with curved surfaces. In one exemplary method, panels are shaped via thermoforming. In another exemplary method, panels are shaped via insert molding to provide the article. In another exemplary method, panels are shaped via compression molding to provide the article. The panels are useful for absorbing sound in a designed frequency range.

    Abstract translation: 面板包括第一层和第二层以及位于其间的核心，其中核心具有提供一系列连接的单元的多个壁，其中一些单元壁具有开口，所述开口提供一系列之间的流体连通 的至少3个细胞，并且其中细胞壁中的开口具有该细胞壁的一侧面积的至少50％的面积。 本文描述的面板的示例性实施例可以是成型的物品，例如面板，墙壁或具有弯曲表面的其他部分。 在一个示例性方法中，面板通过热成形而成形。 在另一个示例性方法中，面板通过插入模制成形以提供制品。 在另一个示例性方法中，面板通过压模成型以提供制品。 这些面板可用于在设计的频率范围内吸收声音。

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