Curable polysilsesquioxane compound, method for producing the same, curable composition, cured product, and method of using curable composition

摘要

The present invention is a curable polysilsesquioxane compound comprising one structural unit or two or more structural units represented by R 1 SiO 3/2 , the curable polysilsesquioxane compound having a 29 Si nuclear magnetic resonance spectrum that has a first peak top within a range of -60 ppm or more and less than -54 ppm, has a second peak top within a range of -70 ppm or more and less than -61 ppm, and substantially does not have a peak within a range of -53 ppm or more and less than -45 ppm, and a method for producing the curable polysilsesquioxane compound, and a curable composition comprising the curable polysilsesquioxane compound and a silane coupling agent, and a cured product obtained by heating the curable composition, and a method for using the curable polysilsesquioxane compound or the curable composition, as an optical device-securing material.