The present invention relates to photochromic materials that include a photochromic compound that includes a photochromic substituent (e.g., an indeno-fused naphthopyran) and at least one pendent silane group, which is bonded to the photochromic substituent. The pendent silane groups are selected from certain pendent siloxy-silane groups and/or pendent alkoxy-silane groups represented by general formulas (I) and/or (II) as described in further detail herein. The present invention also relates to photochromic articles, such as photochromic optical elements (e.g., photochromic lenses), and photochromic coating compositions (e.g., curable photochromic coating compositions), that include the photochromic materials of the present invention. The photochromic materials of the present invention have improved compatibility with compositions into which they may be incorporated, for example, coating compositions, such as urethane coating compositions.
本发明涉及包括具有光致变色取代基(例如,
吲哚并环戊基
吡喃)和至少一个侧基
硅烷基的光致变色化合物的光致变色材料。侧基
硅烷基从描述的通用式(I)和/或(II)表示的某些侧基
硅氧烷基和/或侧基烷氧基中选择。本发明还涉及光致变色物品,例如光致变色光学元件(例如,光致变色透镜)和光致变色涂层组合物(例如,可固化的光致变色涂层组合物),其中包括本发明的光致变色材料。本发明的光致变色材料与可能加入其中的组合物(例如,涂层组合物,例如
脲基涂层组合物)具有改进的相容性。