A hardenable composition which comprises (1) a radical polymerizable monomer, (2) an organosilicon compound having epoxy group at one end, (3) an organosilicon compound having a radical polymerizable functional group at one end, (4) an amine compound, (5) a photochromic compound and (6) a photopolymerization initiator, wherein the compound of component (2) is a compound having silanol group or a group which forms silanol group by hydrolysis, and the compound of component (3) is a compound having silanol group or a group which forms silanol group by hydrolysis; and an optical member which comprises a photochromic coating layer formed by coating an optical substrate with the hardenable composition described above and hardening the composition. The photochromic coating layer in the optical member exhibits excellent adhesion with the optical substrate and a great strength of the film.
一种可硬化组合物,它包括(1)一种可自由基聚合的单体,(2)一种一端具有环氧基的
有机硅化合物,(3)一种一端具有可自由基聚合的官能团的
有机硅化合物,(4)一种胺化合物,(5)一种光致变色化合物和(6)一种光聚合
引发剂、(5) 一种光致变色化合物和 (6) 一种光聚合
引发剂,其中组分(2)的化合物是一种具有
硅醇基或通过
水解形成
硅醇基的基团的化合物,组分(3)的化合物是一种具有
硅醇基或通过
水解形成
硅醇基的基团的化合物;以及光学部件,该光学部件包括光致变色涂层层,该涂层层是通过在光学基板上涂覆上述可硬化组合物并硬化该组合物而形成的。光学部件中的光致变色镀膜层与光学基底的附着力极佳,薄膜强度高。