Title: Abrasive article, method of making same, and abrading appts.
Application Number: 95191192 Application Date: 1995.01.13
Publication Number: 1138839 Publication Date: 1996.12.24
Approval Pub. Date: 2001.11.07 Granted Pub. Date: 2001.11.07
International Classifi-cation: A44B18/00;B24D9/08;B24D11/00;B29C43/22
Applicant(s) Name: 3M Co. Address:
Inventor(s) Name: John L. Barry;Donald R. Bell;Jason A. Chesley
Attorney & Agent: ZHANG HENGKANG
Abstract:
    An abrasive sheet article is disclosed, including a substrate having first and second major surfaces, a coated abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The coated abrasive may comprise a plurality of precisely shaped composites comprising a plurality of abrasive grains dispersed in a binder. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface. A method for making such abrasive articles is also disclosed, including several illustrative variations of the inventive method. Also disclosed is a back-up pad for supporting such an abrasive article during abrading. The back-up pad includes a support portion, such as a polymeric backing, and an engaging portion, such as a loop material, for engaging hooking stems projecting from the abrasive article.
Time: 14
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