Anti-loading abrasive article
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United States of America Patent
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Oct 28, 2014
Grant Date -
Jul 7, 2011
app pub date -
Dec 22, 2010
filing date -
Dec 29, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A coated abrasive article includes a backing having a surface, a plurality of abrasive regions overlying the surface in each of the first and second portions, and at least one macro-channel. The surface of the backing has a shape defined by an outer contour. A bisecting axis divides the shape into first and second portions. Each abrasive region includes a binder and a plurality of abrasive grains in contact with the binder. The abrasive grains have an average grain size of not greater than about 200 microns. The at least one macro-channel defines a passageway extending between a pair of adjacent abrasive regions and terminating at openings at the outer contour within each of the first and second portions. The macro-channel has an average channel width of between about 0.1 millimeters to about 5 millimeters and is substantially free of the binder and the abrasive grains.
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