| 摘要 |
PROBLEM TO BE SOLVED: To provide liquid dispersion of alumina glycol, having excellent dispersion stability in spite of not containing a hard-to-remove and nonvolatile dispersion stabilizer such as organic sulfonic acid. SOLUTION: The liquid dispersion of alumina glycol contains as essential components (1) 2-8C glycol, (2) an alumina fine particle and (3) nitric acid or hydrochloric acid having 0.001-0.06 molar ratio of the nitric acid or hydrochloric acid to the alumina or acetic acid having 0.06-0.8 molar ratio of the acetic acid to the alumina but does not contain a compound having a sulfate group. The liquid dispersion of alumina glycol is characterized in that the viscosity of this liquid dispersion having 10 wt.% alumina concentration is≤600 mPa s when measured at 25°C by using a cone/plate type rotational viscometer (the rotational speed is 30 rpm). COPYRIGHT: (C)2008,JPO&INPIT
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