3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Robert G Visser

Todd J Christianson

David D Nguyen

Soon C Park

A method of grinding a glass or other workpiece is described comprising the steps of: contacting a grinding layer of a flexible abrasive article with the surface of a glass workpiece, the grinding layer comprising abrasive grit dispersed in a bonding matrix, the matrix attached to a flexible backing; and moving the grinding layer of the flexible abrasive article and the surface of the glass workpiece relative to one another at a velocity of at least about 16.5 meters per second to provide a final surface roughness Ra less than about 0.030 micrometer.

Method for grinding glass

An abrasive article is provided which comprises a backing; and at least one three-dimensional abrasive coating comprising diamond particles dispersed within a binder bonded to a surface of the backing, the binder comprising a cured binder precursor including a urethane acrylate oligomer. The abrasive article is capable of rapid glass stock removal coupled with reducing the surface finish as indicated by reduced Ra values using an RPP test procedure.

Abrasive article for providing a clear surface finish on glass

A method for polishing a glass workpiece is provided that includes contacting the glass workpiece having an initial Ra with an abrasive article comprising a three-dimensional abrasive coating bonded to a backing, applying a liquid at an interface between the glass workpiece and the abrasive article; moving the glass workpiece and the abrasive article relative to one another; and reducing the initial Ra to a final Ra. The abrasive articles are capable of rapid removal of glass stock from a glass test blank and reducing the surface finish using an RPP test procedure.

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Afton, MN, United States of America

Robert G Visser