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    Coated abrasive article and method of making the same
    2.
    发明授权
    Coated abrasive article and method of making the same 有权

    公开(公告)号：US11602822B2

    公开(公告)日：2023-03-14

    申请号：US17049521

    申请日：2019-04-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Aaron K. Nienaber ,  Joseph B. Eckel

    IPC: B24D18/00 ,  B24D3/04 ,  B24D11/00 ,  B24D11/02

    Abstract: A method of making a coated abrasive article is disclosed. A backing has first and second opposed major surfaces. A make layer precursor is disposed on at least a portion of the first major surface. Magnetizable abrasive particles are disposed onto the make layer precursor while under the influence of an applied magnetic field. At least a majority the magnetizable abrasive particles extend away from the make layer precursor in an orientation substantially aligned with the applied magnetic field. Non-magnetizable particles are then disposed onto the make layer precursor while under the influence of the applied magnetic field. At least some of the non-magnetizable particles are disposed between the magnetizable abrasive particles. Then, the make layer precursor is at least partially cured to provide a make layer.

    METHOD FOR DEPOSITING ABRASIVE PARTICLES
    5.
    发明申请
    METHOD FOR DEPOSITING ABRASIVE PARTICLES 有权

    公开(公告)号：US20220063060A1

    公开(公告)日：2022-03-03

    申请号：US17415488

    申请日：2019-12-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Aaron K. Nienaber ,  Richard M. Jendrejack ,  Joseph B. Eckel

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

    Abstract: The disclosure relates to, among other things, a method of making a coated abrasive article, the method comprising sequentially: locating a plurality of shaped abrasive particles in a tool comprising a plurality of cavities, wherein the plurality of shaped abrasive particles is held in the plurality of cavities, at least in part, electrostatically; and disposing the plurality of shaped abrasive particles onto a make layer precursor of a backing having first and second opposed major surfaces, wherein the make layer precursor is disposed on at least a portion of the first major surface.

    IMPROVED PARTICLE RECEPTION IN ABRASIVE ARTICLE CREATION
    6.
    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).

    MAGNETICALLY ASSISTED DISPOSITION OF MAGNETIZABLE ABRASIVE PARTICLES
    7.
    发明申请
    MAGNETICALLY ASSISTED DISPOSITION OF MAGNETIZABLE ABRASIVE PARTICLES 有权

    公开(公告)号：US20210332277A1

    公开(公告)日：2021-10-28

    申请号：US16479738

    申请日：2018-01-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Aaron K. Nienaber ,  Joseph B. Eckel ,  Thomas J. Nelson ,  Brian D. Goers ,  Samad Javid ,  Ronald D. Jesme ,  Badri Veeraraghavan ,  Sheryl A. Vanasse

    IPC: C09K3/14 ,  C23C14/35 ,  C23C26/00

    Abstract: According to one embodiment, a method can comprise: providing a tool that has a first portion that comprises a first material and a second portion that comprises a second material, wherein the second material differs from the first material and the tool is subject to a magnetic field, and wherein the first material and the second material are provided such that the magnetic field is relatively stronger at and adjacent the first portion relative to the magnetic field at and adjacent the second portion; positioning a surface adjacent to the tool so as to be subject to the magnetic field; and disposing magnetizable abrasive particles on the surface, wherein the magnetizable abrasive particles are attracted to an area on the surface adjacent the first portion where the magnetic field is relatively stronger so as to provide for at least one of a desired orientation, placement and alignment of a majority of the magnetizable abrasive particles on the surface.

    METHOD OF MAKING A COATED ABRASIVE ARTICLE
    8.
    发明申请
    METHOD OF MAKING A COATED ABRASIVE ARTICLE 有权

    公开(公告)号：US20210237229A1

    公开(公告)日：2021-08-05

    申请号：US17049470

    申请日：2019-04-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Aaron K. Nienaber ,  Joseph B. Eckel ,  Thomas J. Nelson ,  Ronald D. Jesme ,  Jaime A. Martinez

    IPC: B24D11/00 ,  B24D18/00 ,  B24D3/28

    Abstract: A method of making a coated abrasive article includes at least four steps. In step a), a web is provided comprising a backing having a make layer precursor disposed thereon. The web moves along a web path in a downweb direction, and the web has a crossweb direction that is perpendicular to the downweb direction. The make layer precursor comprises a first curable binder precursor; In step b) an applied magnetic field is provided. In step c), a mixture of magnetizable non-magnetizable particles is passed through the applied magnetic field and onto the make layer precursor such that the magnetizable and non-magnetizable particles are predominantly deposited onto the web in a drop zone according to a predetermined order. At least one of the magnetizable particles or the non-magnetizable particles comprises abrasive particles. In step d), the make layer precursor is at least partially cured to provide a make layer.

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