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    COATED ABRASIVE DISC AND METHODS OF MAKING AND USING THE SAME
    31.
    发明申请
    COATED ABRASIVE DISC AND METHODS OF MAKING AND USING THE SAME 有权

    公开(公告)号：US20210370473A1

    公开(公告)日：2021-12-02

    申请号：US16650147

    申请日：2018-11-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Thomas P. Hanschen ,  Steven J. Keipert ,  Joseph B. Eckel ,  Aaron K. Nienaber ,  Brant A. Moegenburg ,  Eric M. Moore ,  Thomas J. Nelson

    IPC: B24D11/00 ,  B24D7/06 ,  C09K3/14

    Abstract: A coated abrasive disc includes an abrasive layer disposed on a major surface of a disc backing. The abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material. The triangular abrasive platelets are outwardly disposed from the major surface at contiguous intersections of horizontal and vertical lines of a rectangular grid pattern, wherein the intersections of the rectangular grid pattern have an areal density defined by C/(LT) where C is a unitless coverage factor having a value between 0.1 and 0.4, L is the average major triangular abrasive platelet side length and T is the average triangular abrasive platelet thickness. At least 70 percent of the intersections have a triangular abrasive platelet disposed thereat. Each one of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls, and, on a respective basis, one sidewall facing the disc backing of at least 90 percent of the triangular abrasive platelets has a Z-axis rotational orientation within 10 degrees of the vertical lines. Methods of making and using the coated abrasive discs are also disclosed.

    COATED ABRASIVE DISC AND METHODS OF MAKING AND USING THE SAME
    34.
    发明申请
    COATED ABRASIVE DISC AND METHODS OF MAKING AND USING THE SAME 审中-公开

    公开(公告)号：US20200346322A1

    公开(公告)日：2020-11-05

    申请号：US16763104

    申请日：2018-11-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Thomas P. Hanschen ,  Steven J. Keipert ,  Joseph B. Eckel ,  Aaron K. Nienaber ,  Erin D. Spring ,  Brant A. Moegenburg ,  Eric M. Moore ,  Thomas J. Nelson

    IPC: B24D3/28 ,  B24D11/02

    Abstract: A coated abrasive disc includes a disc backing having an outer circumference. An abrasive layer is disposed on the disc backing. The abrasive layer comprises triangular abrasive platelets secured to a major surface of the disc backing by at least one binder material. The triangular abrasive platelets are outwardly disposed at regularly-spaced points along a spiral pattern extending outwardly toward the outer circumference. Each triangular abrasive platelet has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of the triangular abrasive platelets is disposed facing and proximate to the disc backing, and at least 70 percent of the triangular abrasive platelets are disposed in a recurring sequential orientation having an oscillating Z-axis rotational orientation of the first respective sidewall relative to the tangents to the spiral pattern at regularly-spaced points. Methods of making and using the coated abrasive disc are also disclosed.

    COATED ABRASIVE ARTICLE HAVING SPACER PARTICLES, MAKING METHOD AND APPARATUS THEREFOR
    39.
    发明申请
    COATED ABRASIVE ARTICLE HAVING SPACER PARTICLES, MAKING METHOD AND APPARATUS THEREFOR 有权

    公开(公告)号：US20250114912A1

    公开(公告)日：2025-04-10

    申请号：US18984563

    申请日：2024-12-17

    Applicant: 3M Innovative Properties Company

    Inventor： Joseph B. Eckel ,  Aaron K. Nienaber ,  Thomas J. Nelson ,  Ann Marie Hawkins ,  Amelia W. Koenig

    IPC: B24D11/00 ,  C09K3/14

    Abstract: Coated abrasive articles having spacer particles are formed by providing a production tool having a dispensing surface with a plurality of cavities, guiding the production tool past an abrasive particle feeder, dispensing shaped abrasive particles onto the dispensing surface and into the plurality of cavities of the production tool, guiding a resin coated backing sheet adjacent the production tool past a spacer particle feeder, and dispensing spacer particles onto the resin coated backing sheet and/or the production tool after the abrasive particle feeder prior to a deposit point for the shaped abrasive particles. The spacer particles are selected to have a thickness that is greater than a thickness of a resin coating of the resin coating backing sheet and a thickness and density once dispensed that are sufficient to substantially prevent the production tool from contacting the resin coated backing sheet at the deposit point.

    Camouflage for abrasive articles
    40.
    发明授权
    Camouflage for abrasive articles 有权

    公开(公告)号：US12263558B2

    公开(公告)日：2025-04-01

    申请号：US17415789

    申请日：2019-12-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Joseph B. Eckel ,  Aaron K. Nienaber ,  Thomas J. Nelson ,  Amelia W. Koenig ,  Ann M. Hawkins

    IPC: B24D11/00 ,  B24D11/02 ,  B24D11/08 ,  B24D18/00

    Abstract: Abrasive articles and associated methods are shown that include one or more camouflaging layers that can be applied to a portion of the abrasive article. The one or more camouflaging layers can be applied over the size coat layer as a discontinuous colored layer covering a portion of the size coat layer. In an example, the camouflaging layer can be applied as a repeating pattern of one or more colors on the abrasive article. In an example, the camouflaging layer can be applied randomly to the abrasive article. The discontinuous layer can have a color markedly different than a color of the size coat layer and can be used to mask or minimize an appearance of particle imperfections or voids on the abrasive article. The discontinuous layer can be applicable to coated and non-woven abrasive articles in the form of sheets, discs, belts, pads, or rolls.

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