发明授权
- 专利标题: Abrasive articles and method of making the same
- 专利标题(中): 磨料制品及其制造方法
-
申请号: US559200申请日: 1995-11-13
-
公开(公告)号: US5626639A公开(公告)日: 1997-05-06
- 发明人: William B. King
- 申请人: William B. King
- 申请人地址: MN St. Paul
- 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: MN St. Paul
- 优先权: GBX9423268 19941119
- 主分类号: B24B13/01
- IPC分类号: B24B13/01 ; B24D11/00
摘要:
An abrasive article is provided which comprises a substrate having a surface bearing and abrasive layer and an opposite surface having a layer of pressure sensitive adhesive and a protective liner covering the layer of pressure sensitive adhesive. The liner includes a lift flap secured thereto which does not extend beyond the perimeter of the liner and has a free portion accessible to finger grip. A method of making an abrasive article is also provided which comprises providing a web having an abrasive layer on one side and a layer of pressure sensitive adhesive on an opposite side and a protective liner covering the layer of pressure sensitive adhesive, providing a strip of lift material having a region bearing an adhesive layer and a non-adhesive region, applying the strip to the liner of the web, and cutting the web and strip to form the abrasive article such that the liner of the abrasive material has a lift flap which does not extend beyond the perimeter of the liner and has a free portion accessible to finger grip.
公开/授权文献
信息查询