Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1992-02-20
1993-12-14
Bell, Mark L.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51293, 51298, 51309, B24D 1100
Patent
active
052698211
ABSTRACT:
Coatable mixtures including erodable filler agglomerates, and abrasive articles into which they may be incorporated are presented, the agglomerates comprising a plurality of individual grains of water insoluble filler agglomerated by an agglomerating agent which includes water soluble filler and a binder. A preferred water soluble filler is Al.sub.2 (SO.sub.4).sub.3.14-18H.sub.2 O, a preferred water insoluble filler is Na.sub.3 AlF.sub.6 (cryolite), while a preferred binder is a phenolic resin. Methods of making coatable mixtures including erodable filler agglomerates are also presented.
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Harmer Walter L.
Helmin Harvey J.
Bell Mark L.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Thompson Willie J.
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