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    FLAME-RETARDANT NON-WOVEN FIBROUS WEBS
    3.
    发明申请
    FLAME-RETARDANT NON-WOVEN FIBROUS WEBS 审中-公开

    公开(公告)号：WO2020079525A1

    公开(公告)日：2020-04-23

    申请号：PCT/IB2019/058525

    申请日：2019-10-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： WU, Tien T. ,  WU, Pingfan ,  REN, Liyun

    IPC: D04H1/00 ,  D04H1/43 ,  D04H1/56 ,  D04H1/4291

    Abstract: A nonwoven fibrous web and a method of making thereof. The nonwoven fibrous web includes greater than 0% but no greater than 30 wt% of a plurality of melt-blown fibers comprised of a crystalline (co)polymer; and at least 70 wt% of a plurality of randomly-oriented staple fibers, the plurality of randomly-oriented staple fibers including: at least 60 wt% of oxidized polyacrylonitrile fibers; and from 0 to 40 wt% of reinforcing fibers having an outer surface comprised of a (co) polymer with a melting temperature of from 100°C to 350°C; wherein the plurality of melt-blown fibers and the plurality of randomly-oriented staple fibers are bonded together to form a cohesive non-woven fibrous web.

    METHODS AND APPARATUS FOR PRODUCING NONWOVEN FIBROUS WEBS
    4.
    发明申请
    METHODS AND APPARATUS FOR PRODUCING NONWOVEN FIBROUS WEBS 审中-公开
    用于生产非织造纤维织物的方法和装置

    公开(公告)号：WO2013101615A1

    公开(公告)日：2013-07-04

    申请号：PCT/US2012/070757

    申请日：2012-12-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WU, Tien T. ,  HENDERSON, John W. ,  CASTRO, Gustavo H. ,  HOFFDAHL, Gerry A. ,  VALL, David L.

    Inventor： WU, Tien T. ,  HENDERSON, John W. ,  CASTRO, Gustavo H. ,  HOFFDAHL, Gerry A. ,  VALL, David L.

    IPC: D04H1/732 ,  D04H1/736 ,  D04H1/541

    CPC classification number: D04H1/732 ,  D04H1/413 ,  D04H1/4382 ,  D04H1/541 ,  D04H1/736

    Abstract: Methods and apparatus including a chamber having a substantially open lower end positioned above a collector surface, at least one fiber inlet positioned above the lower end, a first multiplicity of rollers positioned within the chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, a second multiplicity of rollers positioned within the chamber above the first multiplicity of rollers wherein each of the second multiplicity of rollers has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, the second multiplicity of rollers positioned so at least a portion of the projections extending outwardly from the circumferential surfaces of each of the second multiplicity of rollers vertically overlaps with at least a portion of the projections extending outwardly from the circumferential surface of at least one of the first multiplicity of rollers.

    Abstract translation: 方法和装置包括具有位于收集器表面上方的基本上开口的下端的腔室，位于下端上方的至少一个纤维入口，位于腔室内的第一多个辊，其中每个辊具有多个从一个 围绕中心旋转轴线的圆周表面，位于第一多个辊之上的腔室内的第二多个辊，其中每个第二多个辊具有从围绕旋转中心轴线的周向表面向外延伸的多个突起， 所述第二多个辊定位成使得从所述第二多个辊中的每一个的所述圆周表面向外延伸的所述突起的至少一部分垂直地与从所述第二多个辊中的至少一个的圆周表面向外延伸的至少一部分突出部重叠， 第一乘法 辊子。

    NONWOVEN ABRASIVE ARTICLES HAVING ELECTROSTATICALLY-ORIENTED ABRASIVE PARTICLES AND METHODS OF MAKING SAME
    9.
    发明申请
    NONWOVEN ABRASIVE ARTICLES HAVING ELECTROSTATICALLY-ORIENTED ABRASIVE PARTICLES AND METHODS OF MAKING SAME 审中-公开
    具有静电定向磨料粒子的非织造磨料制品及其制造方法

    公开(公告)号：WO2018057465A1

    公开(公告)日：2018-03-29

    申请号：PCT/US2017/052078

    申请日：2017-09-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： NIENABER, Aaron K. ,  HUBERTY, Grayce T. ,  NELSON, Thomas J. ,  APPLE, Ronald D. ,  MOREN, Louis S. ,  ALKHAS, Robinette S. ,  SCHULTZ, Nathan E. ,  WU, Tien T. ,  HOFFDAHL, Gerry A.

    IPC: B24D3/00 ,  B24D11/00 ,  C09K3/14 ,  B24D18/00 ,  B05C19/00 ,  B05D3/14 ,  B05B5/00

    Abstract: Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.

    Abstract translation: 包括具有多根纤维的非织造纤维基材和多个成形磨粒的磨料制品，每个成形磨粒附着到相应纤维上，每个成形磨粒具有长度（L）和 在与长度基本正交的方向上确定的宽度（W），限定纵横比（L / W）的长度与宽度的比率为至少1.1，每个磨粒相对于其对应的纤维取向，并且更多 使用取向测试可视地确定磨粒的长度大于50％的磨粒相对于其相应的纤维取向，使得磨粒长度通常向外远离相应纤维的表面延伸。 成形磨粒可以具有其上具有两个面和至少三个侧面的多棱柱的几何形状。 还公开了制造磨料制品的方法。

    APPARATUS AND METHODS FOR PRODUCING NONWOVEN FIBROUS WEBS
    10.
    发明申请
    APPARATUS AND METHODS FOR PRODUCING NONWOVEN FIBROUS WEBS 审中-公开
    用于生产非织造纤维织物的装置和方法

    公开(公告)号：WO2013101717A1

    公开(公告)日：2013-07-04

    申请号：PCT/US2012/071177

    申请日：2012-12-21

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  HENDERSON, John W. ,  WU, Tien T. ,  CASTRO, Gustavo H. ,  HOFFDAHL, Gerry A. ,  VALL, David L.

    Inventor： HENDERSON, John W. ,  WU, Tien T. ,  CASTRO, Gustavo H. ,  HOFFDAHL, Gerry A. ,  VALL, David L.

    IPC: D04H1/732 ,  D04H1/736 ,  D04H1/44

    CPC classification number: D04H1/736 ,  D04H1/44 ,  D04H1/49 ,  D04H1/732

    Abstract: Methods and apparatus including a fiber opening chamber having an open upper end and a lower end, at least one fiber inlet for introducing a multiplicity of fibers into the opening chamber, a first multiplicity of rollers positioned within the opening chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, at least one gas emission nozzle positioned substantially below the first multiplicity of rollers to direct a gas stream generally towards the open upper end of the opening chamber, and a forming chamber having an upper end and a lower end, wherein the upper end of the forming chamber is in flow communication with the open upper end of the opening chamber, and the lower end of the forming chamber is substantially open and positioned above a collector having a collector surface.

    Abstract translation: 包括具有开口上端和下端的纤维开口室的方法和装置，至少一个用于将多个纤维引入开口腔的纤维入口，位于开口腔内的第一多个辊，其中每个辊具有多个 从围绕中心旋转轴线的圆周表面向外延伸的突出部分，至少一个气体排放喷嘴，其基本上位于所述第一多个辊的下方，以将气流大致朝向所述开口室的敞开的上端引导;以及成形室， 上端和下端，其中成形室的上端与开口腔的开口上端流动连通，并且成形室的下端基本上是开口的并且位于具有收集器表面的收集​​器之上 。

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