abstract |
The present invention is characterized in that the following components (A) and (B) are used in a ratio by mass of the components (A) and (B) , A cured product obtained by curing the composition, and a method of using the composition as an adhesive for an optical element or as a sealing agent for an optical element. (A): wherein R 1 is selected from an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, and an aryl group having 6 to 20 carbon atoms and having no substituent or substituent And Z represents a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms or a halogen atom. m represents a positive integer, and n and o each independently represent 0 or a positive integer. And R < 1 > s and Z may be mutually the same or different from each other] (B) Component: In a molecule, a silane coupling agent having an isocyanurate skeleton |