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    METHODS OF MAKING METAL BOND AND VITREOUS BOND ABRASIVE ARTICLES, AND ABRASIVE ARTICLE PRECURSORS
    1.
    发明申请
    METHODS OF MAKING METAL BOND AND VITREOUS BOND ABRASIVE ARTICLES, AND ABRASIVE ARTICLE PRECURSORS 有权

    公开(公告)号：US20210316503A1

    公开(公告)日：2021-10-14

    申请号：US17304596

    申请日：2021-06-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Carsten Franke ,  Maiken Givot ,  Malte Korten ,  Robert L.W. Smithson ,  Brian D. Goers ,  Negus B. Adefris ,  Thomas J. Anderson ,  Brian A. Shukla ,  Michael C. Harper ,  Elizaveta Y. Plotnikov

    IPC: B29C64/153 ,  B24D3/06 ,  B24D3/14 ,  B24D5/10 ,  B24D18/00 ,  B24D7/10 ,  B24D5/06 ,  B22F12/00 ,  B29C64/393

    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform. Step d) includes heating the abrasive article preform to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. A method of making a metal bond abrasive optionally includes infusing an abrasive article preform with a molten lower melting metal and solidifying the molten lower melting metal to provide the metal bond abrasive article. The present disclosure further provides a vitreous bond abrasive article precursor and a metal bond abrasive article precursor. Also, methods including receiving, by a manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.

    DENTAL MILLING BLOCK CONTAINING INDIVIDUALIZED DENTAL ARTICLE AND PROCESS OF PRODUCTION
    8.
    发明申请
    DENTAL MILLING BLOCK CONTAINING INDIVIDUALIZED DENTAL ARTICLE AND PROCESS OF PRODUCTION 审中-公开
    含有个体化牙科物品的生物牙科及其生产工艺

    公开(公告)号：US20140377718A1

    公开(公告)日：2014-12-25

    申请号：US14377194

    申请日：2012-12-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Malte Korten ,  Helmar Mayr ,  Gallus Schechner ,  Christoph Thalacker ,  Karsten Dede ,  Michael Jahns

    IPC: A61C5/10 ,  A61C13/20

    CPC classification number: A61C13/20 ,  A61C5/77 ,  A61C13/0022 ,  Y10T29/49567

    Abstract: The invention relates to a dental milling block (1) comprising a dental article (2) having an outer surface, the dental article having been produced based on personalized data, wherein the outer surface of the dental article is at least partially covered with a surrounding material. The invention further relates to a process of producing a dental milling block, the process comprising the steps of: •a) providing a personalized Data Set C containing geometry data of the dental article and colour data related to said geometry data, •b) generating a layer of hardenable material on a surface, •c) applying a colour agent to the layer of hardenable material of step b), wherein the colour agent is applied to at least some regions of those areas of the layer of hardenable material which are related to the geometry data of the dental article, •d) consolidating the result obtained in step c) thereby obtaining an at least partially hardened layer of material.

    Abstract translation: 本发明涉及一种牙科研磨块（1），其包括具有外表面的牙科制品（2），所述牙科制品已经基于个性化数据生产，其中所述牙科用品的外表面至少部分地被周围的 材料。 本发明还涉及一种生产牙科铣块的方法，所述方法包括以下步骤：a）提供包含所述牙科用品的几何数据和与所述几何数据有关的颜色数据的个性化数据集C，b）产生 表面上的可硬化材料层，c）将步骤b）的可硬化材料层施加着色剂，其中将着色剂施加到相关的可硬化材料层的那些区域的至少一些区域 涉及牙科制品的几何数据; d）巩固步骤c）中获得的结果，从而获得至少部分硬化的材料层。

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