Method for evaluating the quality of abrasive grains, polishing method and abrasive for polishing glass
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United States of America Patent
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Apr 11, 2006
Grant Date -
Jul 22, 2004
app pub date -
Nov 21, 2003
filing date -
Nov 22, 2002
priority date (Note) -
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Abstract
A method for evaluating the quality of abrasive grains for polishing glass, which comprises adding abrasive grains to be measured, to an aqueous medium having silica dissolved therein, to have the silica adsorbed on the abrasive grains under such a condition that the silica undergoes substantially no polymerization in the aqueous medium, followed by solid-liquid separation to separate the abrasive grains from the mother liquor, and measuring the concentration of silica remaining in the mother liquor to measure the adsorption rate (η) of silica on the abrasive grains.
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