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    Abrasive particles, method of making abrasive particles, and abrasive articles
    23.
    发明授权
    Abrasive particles, method of making abrasive particles, and abrasive articles 有权

    公开(公告)号：US10301518B2

    公开(公告)日：2019-05-28

    申请号：US15673685

    申请日：2017-08-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Negus B. Adefris

    IPC: C09K3/14 ,  B24D11/00 ,  B24D3/14 ,  C04B35/111 ,  C04B35/628 ,  B24D3/00 ,  B24D3/02 ,  B24D18/00

    Abstract: Shaped ceramic abrasive particles include a first surface having a perimeter having a perimeter comprising at least first and second edges. A first region of the perimeter includes the second edge and extends inwardly and terminates at two corners defining first and second acute interior angles. The perimeter has at most four corners that define acute interior angles. A second surface is disposed opposite, and not contacting, the first surface. A peripheral surface is disposed between and connects the first and second surfaces. The peripheral surface has a first predetermined shape. Methods of making the shaped ceramic abrasive particles, and abrasive articles including them are also disclosed.

    Abrasive particles and abrasive articles including the same
    24.
    发明授权
    Abrasive particles and abrasive articles including the same 有权

    公开(公告)号：US10150900B2

    公开(公告)日：2018-12-11

    申请号：US15303309

    申请日：2015-04-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Negus B. Adefris

    IPC: B24D11/00 ,  C09K3/14 ,  C01F7/02

    Abstract: A ceramic shaped abrasive particle bounded by a base surface having a perimeter, contiguous sidewalls abutting the perimeter, and a multifaceted surface comprising contiguous facets. Each of the contiguous sidewalls abuts the perimeter, and collectively the contiguous sidewalls abut the perimeter in its entirety. Adjacent pairs of the contiguous sidewalls abut each other along respective corner edges. The multifaceted surface is spaced apart from the base surface by the contiguous sidewalls. At least one V-shaped groove extends from one of the corner edges across the multifaceted surface to one of the contiguous sidewalls that does not contact that corner edge. Less than ten percent of the multifaceted surface area is parallel to the base surface. Pluralities of the shaped abrasive particles and coated abrasive articles including them are also disclosed.

    A COATED ABRASIVE ARTICLE MAKER APPARATUS
    25.
    发明申请
    A COATED ABRASIVE ARTICLE MAKER APPARATUS 审中-公开
    涂层磨砂制品装置

    公开(公告)号：US20160311081A1

    公开(公告)日：2016-10-27

    申请号：US15106213

    申请日：2014-12-22

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Scott R. Culler ,  John T. Boden ,  Steven J. Keipert ,  Negus B. Adefris ,  Karan Jindal ,  Aaron K. Nienaber ,  David L. Morrison ,  Peter T. Benson ,  Pratik Pranay ,  Bradford B. Wright

    IPC: B24D11/00 ,  C09K3/14 ,  B24D3/28

    Abstract: A coated abrasive article maker apparatus including a first web path guiding a production tool such that it wraps a portion of the outer circumference of an abrasive particle transfer roll; a second web path for a resin coated backing guiding the resin coated backing such that it wraps a portion of the outer circumference of the abrasive particle transfer roll with the resin layer positioned facing the dispensing surface of the production tool this is positioned between the resin coated backing and the outer circumference of the abrasive particle transfer roll; and wherein abrasive particles are transferred from cavities in the production tool to the resin coated backing as the resin coated backing and the production tool traverse around the abrasive particle transfer roll

    Abstract translation: 一种涂覆的磨料制品制造设备，包括引导生产工具的第一卷材路径，使得其包裹磨料颗粒转移辊的外周的一部分; 用于引导树脂涂覆的背衬的树脂涂覆的背衬的第二网路径，使得其将磨料颗粒转移辊的外周的一部分与面向生产工具的分配表面定位的树脂层包裹，所述树脂层位于涂覆有树脂的树脂涂层 磨料颗粒转移辊的外周; 并且其中将磨料颗粒从生产工具中的空腔转移到树脂涂覆的背衬上，并且生产工具围绕研磨颗粒转移辊

    Shaped vitrified abrasive agglomerate, abrasive articles, and method of abrading
    27.
    发明授权
    Shaped vitrified abrasive agglomerate, abrasive articles, and method of abrading 有权

    公开(公告)号：US11607776B2

    公开(公告)日：2023-03-21

    申请号：US16318655

    申请日：2017-07-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark A. Lukowski ,  Brian D. Goers ,  Negus B. Adefris ,  Scott W. Peterson

    IPC: B24D3/34 ,  B24D3/32 ,  B24D3/00 ,  B24D3/28 ,  B24D3/18 ,  B24D11/00

    Abstract: An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.

    Elongated abrasive particles, method of making the same, and abrasive articles containing the same
    30.
    发明授权
    Elongated abrasive particles, method of making the same, and abrasive articles containing the same 有权

    公开(公告)号：US11274237B2

    公开(公告)日：2022-03-15

    申请号：US16649031

    申请日：2018-09-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dwight D. Erickson ,  Negus B. Adefris

    IPC: C09K3/14

    Abstract: A method of making elongated abrasive particles includes five steps. Step 1) includes providing a mold having parallel linear grooves, partially interrupted at predetermined intervals by transverse obstructions. Step 2) includes filling the parallel linear grooves with a flowable abrasive particle precursor composition. Step 3) includes at least partially drying the flowable abrasive particle precursor composition to form an at least partially dried abrasive particle precursor composition. Step 4) includes separating that composition from the mold, thereby forming elongated precursor abrasive particles having a shape corresponding to portions of the parallel linear grooves disposed between the transverse obstructions. At least one of the first and second opposite ends of the elongated precursor abrasive particles comprises both a molded portion and a fractured portion. Step 5) converts the elongated precursor abrasive particles into elongated abrasive particles. Elongated abrasive particles preparable by the method and abrasive articles containing them are also disclosed.

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