Nonwoven fiber abrasive disk
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United States of America Patent
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-
Dec 29, 1987
Grant Date -
N/A
app pub date -
Apr 29, 1986
filing date -
Apr 29, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A nonwoven fiber abrasive disk is formed with a hole in the center, from flexible fibers randomly oriented in all three dimensions. The abrasive disk has compressed regions that radiate out from the center to the perimeter, with uncompressed abrasive regions located between them. The fibers in the compressed regions are densely pressed together and hardened with bonding adhesive introduced into the gaps between those fibers, such that the disk thickness in those regions is less than that in the uncompressed abrasive regions. The abrasive regions of the disk, which are thicker than the compressed regions, protrude out to form the abrasive surface.
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