Preformed abrasive articles and method for the manufacture of same
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United States of America Patent
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Apr 20, 2004
Grant Date -
Dec 11, 2003
app pub date -
Jun 5, 2002
filing date -
Jun 5, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A non-woven abrasive article of interlaced fibers and abrasive particles and a binder which is preformed into a predetermined three dimensional shape and a method for manufacturing the same. The abrasive article is preformed by a thermal setting the abrasive article while it is maintained in a predetermined three dimensional shape or by heating the article to its glass transition temperature and then cooling the article below the glass transition temperature while it is maintained in a predetermined three dimensional shape. This method allows the manufacture of preformed abrasive articles in various three dimensional shapes, including, for example, a bull nosed shape suitable for finishing a concavely curved surface.
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