Back to results
US 5,672,186 AGranted
Method of making an abrasive article
AssigneeMinnesota Mining and Manufacturing Company
InventorsJason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
Life of this patent
Estimating the term…
Abstract
A method for making an abrasive article is disclosed, including the steps of providing a substrate having abrasive means on one surface, and providing a plurality of hooking stems on the opposite surface thereof. Several illustrative variations of the inventive method are disclosed.
Claims32
A method of making an abrasive article, comprising the steps of:
- a) providing an abrasive sheet having first and second major surfaces, the first major surface including means for abrading a surface;
- b) applying a plurality of hooking stems to a first major surface of a base sheet by the application of a flowable polymeric organic material with a gravure roll;
- c) shaping each hooking stem so as to have an included distal end angle of less than approximately 90 degrees to thereby provide each stem with a hooking portion to enable the hooking stem to releasably hook an opposed engaging structure;
- d) bonding a second major surface of the base sheet to the second major surface of the abrasive sheet;
- and
- e) orienting the hooking stems such that individual hooking stems are oriented in at least two directions, respectively.
3 more elements
Dependencies are inferred from the claim text.