发明名称 |
Abrasive articles and methods for their manufacture |
摘要 |
Abrasive articles and methods for their manufacture are described. The articles are screen abrasive articles including a durable backing member having a patterned array of portions thereon arranged around a plurality of openings extending through the backing with the openings comprising between about 20% and about 80% of the total area of the backing. A coating of abrasive material is adhesively affixed to the array of portions on the backing, forming abrasive surfaces arranged around the openings to cooperatively function as a single abrasive surface while the openings allow debris to pass through the article during abrasive applications. In at least one aspect of the invention, the portions of the backing include a plurality of first surface portions and a plurality of second surface portions having surface areas greater than the surface areas of the first portions.
|
申请公布号 |
US5674122(A) |
申请公布日期 |
1997.10.07 |
申请号 |
US19940330352 |
申请日期 |
1994.10.27 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
KRECH, JOHN E. |
分类号 |
B24D11/02;(IPC1-7):B24D11/00 |
主分类号 |
B24D11/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|