To provide a photochromic composition which functions as an adhesive layer for bonding two optical sheets that are formed of a polycarbonate resin or the like, so that a laminate that is obtained by bonding two optical sheets with the composition being sandwiched therebetween has excellent adhesion, heat resistance and photochromic properties. In particular, to provide a photochromic composition which is capable of forming an adhesive layer that is not decreased in the adhesion between the optical sheets even in cases where the adhesive layer is in contact with hot water. Provided is a photochromic composition which contains a urethane polymer having a polymerizable group (component A) and a photochromic compound (component B).
提供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两片光学薄膜的粘合层,从而使夹有该组合物的两片光学薄膜粘合而成的层压板具有优异的粘合性、耐热性和光致变色性能。特别是,提供一种光致变色组合物,该组合物能够形成粘合层,即使在粘合层与热
水接触的情况下,光学薄膜之间的粘合力也不会降低。本发明提供了一种光致变色组合物,它包含一种具有可聚合基团的聚
氨酯聚合物(成分 A)和一种光致变色化合物(成分 B)。