CURABLE POLYSILSESQUIOXANE COMPOUND METHOD FOR PRODUCING SAME CURABLE COMPOSITION CURED PRODUCT AND METHOD FOR USING CURABLE COMPOSITION OR LIKE

摘要

The present invention is a curable polysilyl having at least one kind of structural unit represented by the formula: R ¹ SiO _3/2 (R ¹ represents a C 1-10 alkyl group which may have a substituent or an aryl group which may have a substituent.) As the sesquioxane compound, in the ²⁹ Si-NMR spectrum, the first peak top is in the region of -65 ppm or more and less than -55 ppm, and the second peak top is in the region of -73 ppm or more and less than -65 ppm, and the third The peak top exists in the area | region of -82 ppm or more and less than -73 ppm, and the integral value of a 1st peak is with respect to the sum of the integration value of a 1st peak, the integration value of a 2nd peak, and the integration value of a 3rd peak, Curable polysilsesquioxane compound larger than 0 and less than 10%; Its manufacturing method; Curable composition; Hardened | cured material formed by hardening this composition; And a method for use as an optical device fixing agent such as the composition. According to this invention, the curable polysilsesquioxane compound from which the hardened | cured material which is excellent in heat resistance and has high adhesive force is obtained, its manufacturing method, curable composition, hardened | cured material formed by hardening this composition, and optical elements, such as the composition, etc. A method of use as a fixative is provided.