| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat-resistant easily-dispersible organic clay by reacting a cristobalite-containing organic clay (bentonite) with a silane compound (silane coupling agent) to fix the silane compound on a crystal surface and end face. SOLUTION: A half-dried cristobalite-containing organic clay is mixed with a silane compound optionally dissolved in an organic solvent such as methanol, ethanol or acetone, and a prepared mixture is dried and pulverized. Alternatively, a cristobalite-containing aqueous clay dispersion is mixed with an organic cation, and a silane compound preliminarily dissolved in an organic solvent, and a prepared mixture is dried and pulverized to produce the objective heat-resistant white easily-dispersible organic clay. COPYRIGHT: (C)2009,JPO&INPIT
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