| 摘要 |
In a first aspect, a liquid coating composition includes a blend of a polymer matrix resin and a photochromic dye. The polymer matrix resin includes silane groups, and at least 50% of the silane groups in the polymer matrix resin are at terminal positions. In a second aspect, a film includes a photochromic dye in a polymer matrix. The polymer matrix includes at least one allophanate or biuret group, and the at least one allophanate or biuret group includes a silane moiety. In a third aspect, an ophthalmic lens includes a film, and the film includes a photochromic dye in a polymer matrix. The polymer matrix includes at least one allophanate or biuret group, and the at least one allophanate or biuret group includes a silane moiety. |
