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    Repositionable abrasive disc mounting assembly and method of using the same
    34.
    发明授权
    Repositionable abrasive disc mounting assembly and method of using the same 有权

    公开(公告)号：US12208492B2

    公开(公告)日：2025-01-28

    申请号：US17784869

    申请日：2020-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Joseph B. Eckel ,  Thomas J. Nelson ,  Fay T. Salmon ,  David T. Buckley ,  Cory M. Arthur ,  Alireza Ghaderi ,  Dominic J. Triana

    IPC: B24D9/08 ,  B24B45/00

    Abstract: A repositionable abrasive disc mounting assembly comprises a backup pad and a clamp assembly. The backup pad has a rotational axis of use and a major surface with projections extending outwardly therefrom. The backup pad further comprises an inwardly facing centrally disposed first fastening member, and also an outwardly facing centrally disposed second fastening member. The clamp assembly comprises inner and outer clamp members for securing an abrasive disc. The inner clamp member comprises an inwardly facing centrally disposed third fastening member adapted to repositionably engage the second fastening member in a discrete number of rotational orientations. The inner clamp member further comprises an outwardly facing centrally disposed fourth fastening member. The outer clamp member comprises an inwardly facing centrally disposed fifth fastening member adapted to securely engage the fourth fastening member. A method of abrading a workpiece using the repositionable abrasive disc is also disclosed.

    COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME
    36.
    发明申请
    COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20230059614A1

    公开(公告)日：2023-02-23

    申请号：US17793863

    申请日：2021-02-01

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Ernest L. Thurber ,  Gregory P. Sorenson ,  Ilya Gorodisher ,  Thomas J. Nelson ,  Junting Li ,  Daniel M. Lentz

    IPC: B24D3/28 ,  B24D3/34 ,  B24D11/00 ,  B24D18/00

    Abstract: A coated abrasive article comprises a backing having first and second opposed major surfaces, a make layer disposed on at least a portion of the first major surface and bonding abrasive particles to the backing, a size layer overlaid on at least a portion of the make layer and the abrasive particles, and an optional supersize layer. At least one of the size layer or the optional supersize layer comprises an at least partially cured resole phenolic resin and an organic polymeric rheology modifier, and wherein the amount of the at least partially cured resole phenolic resin comprises from 75 to 99.99 weight percent of the combined weight of the at least partially cured resole phenolic resin and the organic polymeric rheology modifier. A method of making the coated abrasive article is also disclosed.

    IMPROVED PARTICLE RECEPTION IN ABRASIVE ARTICLE CREATION
    37.
    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
    38.
    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.

    Multipurpose tooling for shaped particles
    39.
    发明授权
    Multipurpose tooling for shaped particles 有权

    公开(公告)号：US11090780B2

    公开(公告)日：2021-08-17

    申请号：US16331279

    申请日：2017-09-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Thomas J. Nelson ,  Jasmeet Kaur ,  Ronald W. Ausen ,  Jaime A. Martinez ,  Edward J. Woo

    IPC: B24D18/00 ,  B24D3/34 ,  B29D28/00

    Abstract: A method of transferring a shaped particle to a substrate includes providing a scrim of at least two elongate strands periodically joined together at flexible bond regions to form an array of apertures between the strands. The scrim is extended along at least one direction to increase the minimum dimension of the apertures. Shaped particles are applied to the extended scrim and at least a portion of the shaped particles enter in at least some of the apertures therein. The extended scrim is relaxed and frictionally retains the particles between the elongate strands. The particle loaded scrim is extended along at least one direction to release and transfer the shaped particles to the substrate in a predetermined orientation.

    METHOD OF MAKING A COATED ABRASIVE ARTICLE
    40.
    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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