申请人:PPG Industries Ohio, Inc.
公开号:US06353102B1
公开(公告)日:2002-03-05
Described are novel photochromic naphtho[1,2-b]pyran compounds having certain substituents at the 2 position of the pyran ring, certain substituents at the 5 and 6 positions and optionally at the 7, 8, 9 and 10-positions of the naphtho portion of the compound. These compounds may be represented by the following graphic formula:
Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or contact lenses that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans, and spiro(indoline)type compounds, are also described.
描述了具有萘并[1,2-b]吡喃环2位具有特定取代基,5位和6位以及化合物的萘部分的7、8、9和10位位置可选地具有特定取代基的新型光致变色萘[1,2-b]吡喃化合物。这些化合物可以用以下图式表示:
还描述了含有或涂有这些化合物的聚合有机宿主材料。还描述了包含新型萘吡喃化合物或其与互补光致变色化合物(例如,某些其他萘吡喃、苯并吡喃和螺(indoline)型化合物)的组合的光学透明物品,例如眼镜或隐形眼镜。