| 摘要 |
A method for producing a basket type silsesquioxane resin comprising a hydrolysis reaction step of hydrolyzing a silicon compound (a), a silicon compound (b) and a silicon compound (c) under the presence of a mixed solvent composed of water, an organic polar solvent and an organic nonpolar solvent as well as a basic catalyst, and condensing them together to obtain a basket type silsesquioxane resin, the mixed molar ratio of the (a), (b) and (c) being represented by the following formula (i), (i) a:b:c=n:m:k (In the formula, n, m and k are an integer that fulfills the following conditions; n=1, m=1, n+m+k is any one of 8, 10, 12 or 14.), and not comprising a step of heating to above 90�C after the hydrolysis reaction step. |
