PHOTOCHROMIC CURABLE COMPOSITION

摘要

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 (Xm 1 ) and an isocyanate group-containing monomer (Xm 2 ), and the
isocyanate group-containing monomer (Xm 2 ) and the epoxy group-containing monomer (Xm 1 ) are contained at a mass ratio of Xm 2 /Xm 1 = 3 to 40.