Abrasive article comprising abrasive agglomerates supported in a fibrous matrix
AssigneeMinnesota Mining and Manufacturing Company
InventorsRaymond F. Heyer, William R. Lovness
Life of this patent
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Abstract
An abrasive article comprising a plurality of separated abrasive agglomerates distributed within a matrix of undulated filaments is provided. The invention also provides a method of making an abrasive article comprising forming, within a lofty open web comprising undulated filaments bonded at points of mutual contact, a plurality of separated abrasive agglomerates to provide an abrasive agglomerate-impregnated web. Articles may be prepared of the agglomerate-impregnated web per se or by laminating layers of the web together preferably under pressure. Exemplary articles include abrasive wheels, discs, belts, sheets, blocks and the like.
Claims13
An abrasive article comprising:
- a matrix comprising undulated filaments bonded at points of mutual contact;
- and
- a plurality of separated abrasive agglomerates at least 2 mm in average particle size distributed within said matrix, said abrasive agglomerates comprising abrasive particles bonded together with a bonding agent to provide an abrasive particle to bonding agent weight ratio of about 1:1-20:1.
Dependencies are inferred from the claim text.