Provided is a photochromic composition which can function as an adhesive layer for bonding optical sheets made from a polycarbonate resin or the like and which can yield a laminate that exhibits excellent tight adhesion, heat resistance and photochromic properties. The photochromic composition is, for example, a composition which comprises: a polyurethane-urea resin (component (A)) obtained by reacting a polyol compound (component (A1)), a polyisocyante compound (component (A2)) that has two or more isocyanato groups in the molecule, and an amino-containing compound (component (A3)) that contains two or more isocyanato-reactive groups in the molecule, with at least one of the isocyanato-reactive groups being an amino group; and a photochromic compound (component (B)). The amino-containing compound (component (A3)) is a diamine or the like.
本发明提供了一种光致变色组合物,该组合物可用作粘合聚
碳酸酯
树脂或类似材料制成的光学薄膜的粘合剂层,并可产生具有优异的紧密粘合性、耐热性和光致变色性能的层压板。例如,光致变色组合物是一种包含以下成分的组合物:由多元醇化合物(成分 A1)、分子中含有两个或两个以上
异氰酸酯基团的多
异氰酸酯化合物(成分 A2)和分子中含有两个或两个以上
异氰酸酯反应基团的含
氨基化合物(成分 A3)反应而得的聚
氨酯
尿素树脂(成分 A),其中至少一个
异氰酸酯反应基团为
氨基;以及光致变色化合物(成分 B)。含
氨基的化合物(组分(A3))是二胺或类似物。