| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for the preparation of a thin metal oxide film at a temperature as low as≤200°C, and a metal oxide sol suitable for producing a homogeneous organic-inorganic composite, as well as a thin metal oxide film and organic-inorganic composite which have various functions, particularly an organic-inorganic composite with a high refractive index and high transparency. SOLUTION: A dispersed ingredient having metal-oxygen bonds is obtained by hydrolyzing a metal alkoxide in an organic solvent in the absence of an acid, a base, and/or a dispersion stabilizer, either with 0.5-1 mol of water per mol of the metal alkoxide or at≤-20°C with 1.0-2.0 mol of water per mol of the metal alkoxide, such that the dispersed ingredient is stably dispersed without aggregating in the organic solvent. Use of the dispersed ingredient enables the thin metal oxide film and the homogeneous organic-inorganic composite to be produced at a temperature as low as≤200°C. COPYRIGHT: (C)2009,JPO&INPIT
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