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    IMPROVED PARTICLE RECEPTION IN ABRASIVE ARTICLE CREATION
    1.
    发明申请
    IMPROVED PARTICLE RECEPTION IN ABRASIVE ARTICLE CREATION 有权

    公开(公告)号：US20220055186A1

    公开(公告)日：2022-02-24

    申请号：US17415135

    申请日：2019-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

    IPC: B24D11/00 ,  B24D18/00

    Abstract: The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. A method includes receiving, at a shaped abrasive particle placement tool comprising cavities (1020), shaped abrasive particles (502, 504), determining whether a threshold number of cavities of the cavities (1020) includes a shaped abrasive particle situated properly therein, in response to determining there is not a threshold number of cavities of the cavities (1020) with a shaped abrasive particle (502, 504) situated properly therein, receiving, at the shaped abrasive particle placement tool, further shaped abrasive particles, and in response to determining that at least the threshold number of cavities of the cavities (1020) includes a shaped abrasive particle (502, 504) of the shaped abrasive particles situated properly therein, releasing the shaped abrasive particles (502, 504) from the shaped abrasive particle placement tool into a binding material (508) on a substrate (506) to adhere the shaped abrasive particles (502, 504) to the substrate (506).

    CAMOUFLAGE FOR ABRASIVE ARTICLES
    2.
    发明申请
    CAMOUFLAGE FOR ABRASIVE ARTICLES 有权

    公开(公告)号：US20220063061A1

    公开(公告)日：2022-03-03

    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 ,  B24D18/00 ,  B24D11/02 ,  B24D11/08

    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.

    ABRASIVE PARTICLES
    6.
    发明公开
    ABRASIVE PARTICLES 审中-公开

    公开(公告)号：US20230332029A1

    公开(公告)日：2023-10-19

    申请号：US18301766

    申请日：2023-04-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Laura M. Lara Rodriguez ,  Dwight D. Erickson ,  Chainika Jangu ,  Amelia W. Koenig

    IPC: C09K3/14 ,  C04B35/117 ,  C04B35/64

    CPC classification number: C09K3/1409 ,  C04B35/117 ,  C04B35/64 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3272 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/606

    Abstract: A method of making a formed ceramic abrasive particle is presented that includes molding a dispersion of a ceramic abrasive particle precursor mixture. The method also includes drying the molded dispersion to form a ceramic abrasive particle particle precursor. The method also includes calcining the ceramic abrasive particle precursor. The method also includes sintering the ceramic abrasive particle precursor to form the formed ceramic abrasive particle. The method also includes impregnating the ceramic abrasive particle precusor with a mixture. The mixture includes one or more of a first group consisting of: an oxide of yttrium, praseodymium, samarium, ytterbium, neodymium, lanthanum, gadolinium, dysprosium, and erbium or one or more of a second group consisting of: oxide of iron, magnesium, zinc, silicon, cobalt, nickel, zirconium, hafnium, chromium, cerium, titanium. Impregnating the ceramic abrasive particle precursor occurs after drying, calcining or sintering.

    Coated abrasive article having spacer particles, making method and apparatus therefor
    7.
    发明授权
    Coated abrasive article having spacer particles, making method and apparatus therefor 有权

    公开(公告)号：US12208490B2

    公开(公告)日：2025-01-28

    申请号：US17415181

    申请日：2019-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

    IPC: B24D11/00 ,  B24D18/00

    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.

    Particle reception in abrasive article creation
    8.
    发明授权
    Particle reception in abrasive article creation 有权

    公开(公告)号：US12017327B2

    公开(公告)日：2024-06-25

    申请号：US17415135

    申请日：2019-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

    IPC: B24D11/00 ,  B24D18/00

    CPC classification number: B24D11/001 ,  B24D18/0072 ,  B24D2203/00

    Abstract: The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. A method includes receiving, at a shaped abrasive particle placement tool comprising cavities (1020), shaped abrasive particles (502, 504), determining whether a threshold number of cavities of the cavities (1020) includes a shaped abrasive particle situated properly therein, in response to determining there is not a threshold number of cavities of the cavities (1020) with a shaped abrasive particle (502, 504) situated properly therein, receiving, at the shaped abrasive particle placement tool, further shaped abrasive particles, and in response to determining that at least the threshold number of cavities of the cavities (1020) includes a shaped abrasive particle (502, 504) of the shaped abrasive particles situated properly therein, releasing the shaped abrasive particles (502, 504) from the shaped abrasive particle placement tool into a binding material (508) on a substrate (506) to adhere the shaped abrasive particles (502, 504) to the substrate (506).

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