Abrasive articles comprising a grinding aid dispersed in a polymeric blend binder
AssigneeMinnesota Mining and Manufacturing Company
InventorHarvey J. Helmin
Life of this patent
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Abstract
Abrasive articles and methods of making and using same are presented, the abrasive articles having a peripheral surface adapted to contact and abrade a workpiece. The abrasive articles comprise abrasives particles and a grinding aid composition positioned at an effective location in reference to the abrasive particles, the grinding aid composition comprising: a) a cured grinding aid binder comprising a blend of a thermoplastic resin and a thermoset resin, the thermoplastic resin and thermoset resin being present at an effective weight ratio; and b) an effective amount of a grinding aid dispersed in the grinding aid binder.
Claims15
A coatable, stable grinding aid precursor composition comprising
- (a) a thermoset resin having a thermoplastic resin dispersed therein, said thermoplastic resin and said thermoset resin are present at a weight ratio sufficient to improve at least one of rheological and grinding efficiency effects of the grinding aid composition;
- and
- (b) a plurality of grinding aid particles dispersed in said thermoset resin;
- said grinding aid particles are present in said grinding aid composition in an amount effective to increase grinding efficiency.
Dependencies are inferred from the claim text.