
基本信息:
- 专利标题: Abrasive elements
- 专利标题(中):磨料元素
- 申请号:EP90313472.4 申请日:1990-12-11
- 公开(公告)号:EP0433031A1 公开(公告)日:1991-06-19
- 发明人: Stubbs, Roy
- 申请人: MINNESOTA MINING AND MANUFACTURING COMPANY
- 申请人地址: 3M Center, P.O. Box 33427 St. Paul, Minnesota 55133-3427 US
- 专利权人: MINNESOTA MINING AND MANUFACTURING COMPANY
- 当前专利权人: MINNESOTA MINING AND MANUFACTURING COMPANY
- 当前专利权人地址: 3M Center, P.O. Box 33427 St. Paul, Minnesota 55133-3427 US
- 代理机构: Bowman, Paul Alan
- 优先权: GB8927983 19891211
- 主分类号: B24D3/34
- IPC分类号: B24D3/34
摘要:
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(b) in which 25% of the C-H bonds have been replaced by C-F bonds such that the fluorochemical comprises at least 15% by weight of fluorine.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.
摘要(中):
(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(b) in which 25% of the C-H bonds have been replaced by C-F bonds such that the fluorochemical comprises at least 15% by weight of fluorine.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。
公开/授权文献:
- EP0433031B1 Abrasive elements 公开/授权日:1994-02-23
IPC结构图谱:
B | 作业;运输 |
--B24 | 磨削;抛光 |
----B24D | 磨削、抛光或刃磨用的工具 |
------B24D3/00 | 研磨体或研磨板的物理特征,如特殊性质的研磨面;研磨体或研磨板的成分特征 |
--------B24D3/34 | .以增强特殊物理性质,如耐磨性,导电性,自清洁性的添加剂为特征的黏结砂轮 |