| abstract |
This invention is a curable composition which has the following (A)-(D) component, Comprising: (A) component and (B) component are mass ratio, [(A) component: (B) component] = A curable composition containing 100: 0.3 to 100: 20; a cured product; a method of using the curable composition; and an optical device. (A) Silane compound (co) polymer represented by the following formula (a-1) or formula (a-2) (X 0 is a cyano group, D is a single bond or the like, R 1 is a hydrogen atom or the like. , R 2 is an alkyl group having 1 to 20 carbon atoms, R 3 is an alkyl group having 1 to 10 carbon atoms, Z 1 to Z 5 are hydroxyl groups, m, n, and s are positive integers, o, p, q, r, t, and u represent 0 or a positive integer.), (B) Fine particles having an average primary particle diameter of more than 0.04 μm and 8 μm or less, and (C) a silane cup having nitrogen atoms in the molecule. Ring agent, (D) Silane coupling agent having an acid anhydride structure in the molecule According to the present invention, a curable composition from which a cured product having excellent peel resistance and heat resistance and having high adhesive strength can be obtained. , A cured product obtained by curing the composition, a method of using the composition as an adhesive for optical elements, and an optical device It is. |