3m Innovative Properties Company

Louis R Carpentier

Negus B Adefris

Brian D Goers

Gary M Palmgren

Todd J Christianson

Steven J Dobrzynski

Soon C Park

Ashu N Mujumdar

Jeffrey D Vangsness

David A Kent

Alan P Dimberg

Thomas J Daul

William J Whealon

The present invention is a fixed abrasive article for grinding or polishing the surface of a glass workpiece. The abrasive article for grinding glass has abrasive composites containing a binder, an alkaline metal salt, and diamond abrasive particles or agglomerate particles comprising diamond particles, the composites integrally molded to a backing. The abrasive article for grinding glass is capable of removing between about 200 and 400 micrometers of glass using an RPP procedure having a polish time interval of between 10 and 15 seconds, generally about 12 seconds. The abrasive article for polishing glass comprises a backing containing fibers, and a plurality of abrasive composites integrally molded to the backing comprising an organic resin, ceria abrasive particles, and alkaline metal salt. The abrasive articles for polishing glass also provide an optimum rate of breakdown of the abrasive composites and improved adhesion between the abrasive composites and the backing.

Abrasive article and method of grinding glass

This invention encompasses abrasive articles that have a coating, typically made of at least a binder and abrasive particles, selectively removed from a portion of an exposed abrading surface of the article in order to inscribe a detectable marking on the abrasive article. Suitable coated abrasive articles include both articles that have the binder and abrasive particles sequentially coated on a backing as a make coat and deposited abrasive particles as well as articles that have the binder and abrasive particles simultaneously coated on the backing as a slurry coat. Coated abrasive articles that are particularly preferred include articles that have an exposed abrading or abrasive surface that is a textured, three-dimensional surface.

Marked abrasive article

Growing community of inventors

Eagan, MN, United States of America

Louis R Carpentier