A photochromic curable composition comprising (A) a polymerizable monomer component that contains a (meth)acrylic polymerizable monomer (X), and (B) a photochromic compound, wherein the (meth)acrylic polymerizable monomer (X) is constituted by 80 to 97 parts by mass of a polyfunctional monomer (Xp) having not less than two (meth) acrylic groups in a molecule thereof, and 3 to 20 parts by mass of a monofunctional monomer (Xm) having one (meth) acrylic group in a molecule thereof, the monofunctional polymerizable monomer (Xm) is constituted by an epoxy group-containing monomer (Xm1) and an isocyanate group-containing monomer (Xm2), and the
isocyanate group-containing monomer (Xm2) and the epoxy group-containing monomer (Xm1) are contained at a mass ratio of Xm2/Xm1 = 3 to 40.
一种光致变色可固化组合物,包括(A)含有(甲基)
丙烯酸可聚合单体(X)的可聚合单体组分,以及(B)光致变色化合物,其中(甲基)
丙烯酸可聚合单体(X)由 80 至 97 份(按质量份)的多官能团单体(Xp)构成,在其分子中具有不少于两个(甲基)
丙烯酸基团、单官能团可聚合单体(Xm)由 3 至 20 份(质量分数)的含环氧基单体 (Xm1)和含
异氰酸酯基单体(Xm2)构成,而含
异氰酸酯基单体(Xm2)和含环氧基单体 (Xm1)的质量分数分别为 80 至 97 份(质量分数)和 3 至 20 份(质量分数)的含一 个(甲基)
丙烯酸基团的单官能团单体(Xm)构成。
含
异氰酸酯基团单体(Xm2)和含环氧基团单体(Xm1)的质量比为 Xm2/Xm1 = 3 至 40。