Coated abrasive grains, method and for the production thereof as well as the use thereof for producing abrasives
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United States of America Patent
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Oct 21, 2014
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Oct 14, 2008
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Oct 16, 2007
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Abstract
The present invention relates to abrasive grains, which are coated with a micro-particle inorganic powder and a binder, consisting of the group of conventional abrasive grains as well as the group of the “superabrasives”, wherein the binder comprises an aluminosilicate with a molar ratio of Al2O3 to SiO2 of 1:2 to 1:20 as well as at least one complex alkaline fluoride. The particular advantage of this coating is that the binder can already be completely hardened at below 400° C. The invention also relates to a method for producing such abrasive grains as well as to the use thereof for producing abrasives.
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