C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/14 (2006.01) B24D 3/34 (2006.01)
Patent
CA 2117473
Previously known methods of rendering binders erodable do not afford the desired degree of erodability. 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 Al2(SO4)3.14-18H2O, a preferred water insoluble filler is Na3AlF6(cryolite), while a preferred binder is a phenolic resin. The agglomerates may be formed in situ in a binder precursor composition.
Harmer Walter L.
Helmin Harvey J.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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