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US 6,186,866 B1Granted
Abrasive article with separately formed front surface protrusions containing a grinding aid and methods of making and using
Assignee3M Innovative Properties Company
InventorJohn J. Gagliardi
Life of this patent
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Abstract
An abrasive article including (i) a first backing, (ii) a plurality of protrusions attached to the first surface of the first backing and including a grinding aid, wherein the first surface of the first backing is contoured by the protrusions so as to define a plurality of peaks and valleys, and (iii) a coating of abrasive particles adhered to the contoured first surface of the first backing so as to cover at least a portion of both the peaks and the valleys.
Claims19
An abrasive article, comprising:
- (a) a first backing having a first surface and a second surface,
- (b) a plurality of grinding aid-containing protrusions attached to the first surface of the first backing, wherein said grinding aid is non-abrasive, wherein the first surface of the first backing is contoured by the protrusions so as to define a plurality of peaks and valleys, wherein said grinding aid is non-abrasive, and
- (c) a coating of abrasive particles adhered to the contoured first surface of the first backing so as to cover at least a portion of both the peaks and the valleys.
An abrasive article, comprising:
- (a) a first backing having a first surface and a second surface,
- (b) a plurality of grinding aid-containing protrusions adhered to the first surface of the first backing, wherein said grinding aid is non-abrasive , wherein the grinding aid is selected from the group consisting of halogenated thermoplastics, sulfonated thermoplastics, waxes halogenated waxes, sulfonated waxes, and mixtures thereof, wherein the first surface of the first backing is contoured by the protrusions so as to define a plurality of peaks and valleys with each peak defining an apex and each valley defining a base layer nadir, and
- (c) a coating of abrasive particles adhered to the contoured first surface of the first backing and defining (i) abrasive coated protrusions with each protrusion defining an abrasive coated apex, and (ii) abrasive coated valleys with each abrasive coated valley defining an abrasive coated nadir,
- (d) wherein the apex of a majority of the protrusions extend above at least one adjoining abrasive coated nadir.
1 more element
Dependencies are inferred from the claim text.