| abstract |
To provide a curable composition that has excellent smoothness when a plastic substrate is coated therewith and dried, causes hardly any warp after curing or swarf when cutting, and has excellent scratch resistance, transparency, adhesion, and UV resistance and, furthermore, to provide an active energy beam-curable composition that can be cured without using a photopolymerization initiator or with the use of a small amount thereof. A curable composition containing a reaction product (A) obtained by reacting an alkoxysilane compound (a1) represented by Formula (1) below and inorganic oxide microparticles (a2) in the presence of water and an organic solvent. n€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(P-SiO 3 / 2 ) 1-a (P-Si(R 0 )O 2/2 ) a (O 1/2 R 3 ) z €ƒ€ƒ€ƒ€ƒ€ƒ(1) In Formula (1), P denotes a maleimide-containing group, R 3 denotes a hydrogen atom or a monovalent organic group, R 0 denotes a monovalent organic group, a is 0 or a positive number and satisfies 0 ‰¤ a < 1, and z is a positive number and satisfies 0.1 ‰¤ z ‰¤ 2. |