Inventors:
Dennis D. Leatherman - Pittsburgh PA
James J. McGinley - Pittsburgh PA
Daniel E. Adams - Barrington IL
George A. Brons - Lincroft NJ
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
B24B 100
Abstract:
An abrasive article comprises abrasive particles bonded to microporous material wherein the microporous material comprises (a) a matrix consisting essentially of thermoplastic organic polymer, (b) a large proportion of finely divided water-insoluble siliceous filler, and (c) a large void volume.