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    • 32. 发明公开
    • Lapping tape
    • 研磨胶带
    • EP0873821A3
    • 2000-04-05
    • EP98107426.3
    • 1998-04-23
    • TDK Corporation
    • Okada, KesaoKurose, Shigeo
    • B24D11/00B24D3/34B24B21/00
    • B24D11/005B24B21/00B24D3/34G11B5/1871G11B5/41G11B5/84Y10T428/24372Y10T428/24405Y10T428/24421
    • Described is a lapping tape (1) having, on a flexible substrate (2), a lapping layer (3) formed by coating a paint for the formation of a lapping layer which contains inorganic powders, a binder and solvents, and then drying. In the lapping tape according to the present invention, the solvents in the paint contain an organic solvent having a boiling point of 120°C or higher in an amount of 20 to 60 wt.% based on the total amount of organic solvents; the lapping layer has a thickness of 3 to 25 µm; and the remaining amount of the solvents in the lapping layer is 500 g/m 3 . The present invention therefore brings about excellent advantages that the lapping scratches on the surface to the lapped can be prevented to the utmost; peeling of the lapping layer from the lapping tape can be suppressed; and the lapping tape has excellent lapping ability.
    • 描述了一种研磨带(1),其在柔性基底(2)上具有通过涂布涂料形成的研磨层(3),以形成包含无机粉末,粘合剂和溶剂的研磨层,然后干燥。 在根据本发明的研磨带中,基于有机溶剂的总量,涂料中的溶剂含有20至60重量%的沸点为120℃或更高的有机溶剂; 研磨层的厚度为3至25μm; 并且研磨层中溶剂的剩余量为500g / m 3。 因此,本发明带来极好的优点,即可以最大限度地防止研磨表面上的研磨划痕; 可以抑制研磨层从研磨带上的剥离; 研磨带具有优异的研磨能力。
    • 40. 发明公开
    • Abrasive elements
    • 磨料元素
    • EP0433031A1
    • 1991-06-19
    • EP90313472.4
    • 1990-12-11
    • MINNESOTA MINING AND MANUFACTURING COMPANY
    • Stubbs, Roy
    • B24D3/34
    • B24D3/004B24D3/34Y10T428/25Y10T428/3154Y10T428/31544
    • An abrasive element comprising a substrate having on a surface thereof particles of an abrasive material secured by a non-metallic binding medium wherein at least the surface of the element between the particles of abrasive material contains a fluorochemical selected from the group consisting of compounds comprising a fluorinated aliphatic group attached to a polar group or moiety and fluoropolymers having a molecular weight of at least 750 and comprising a non-fluorinated polymeric backbone having a plurality of pendant fluorinated aliphatic groups, said aliphatic groups comprising the higher of

      (a) a minimum of three C-F bonds, or
      (b) in which 25% of the C-H bonds have been replaced by C-F bonds such that the fluorochemical comprises at least 15% by weight of fluorine. The fluorochemical may be applied as a layer coated over the existing layers of an abrasive element or it may be incorporated into at least the coating formulation which will form the outermost layer of the binding medium. The abrasive elements may be in the form of sheets, blocks, discs, pads, belts etc. The presence of the fluorochemical serves to reduce the loading of the abrading surface in use, thereby extending the working life of the abrasive element.
    • 一种研磨元件,该研磨元件包括在其表面上具有由非金属结合介质固定的研磨材料颗粒的基材,其中研磨材料颗粒之间的元件的至少表面含有选自由以下组成的组的含氟化合物: 与极性基团或部分连接的氟化脂族基团和分子量至少为750的含氟聚合物,并且包含具有多个侧链氟化脂族基团的非氟化聚合物主链,所述脂族基团包含以下中的较高者:(a) 三个CF键,或(b)其中25%的CH键已被CF键取代,使得氟化物包含至少15重量%的氟。 含氟化合物可作为涂覆在研磨元件的现有层上的层施加,或者可将其掺入至少将形成结合介质的最外层的涂层制剂中。 研磨元件可以是片状,块状,盘状,衬垫,带状等形式。含氟化合物的存在用于减少使用中研磨表面的负载,由此延长研磨元件的工作寿命。