申请人:PPG Industries, Inc.
公开号:US05200116A1
公开(公告)日:1993-04-06
Described are a series of novel photochromic benzopyran and naphthopyran compounds substituted with (1) a cyclopropyl group and (2) a phenyl, substituted phenyl, or 5-member aromatic heterocyclic group at the 2-position of the benzopyran or naphthopyran ring. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic or plano lenses that incorporate the novel pyran compounds or combinations of the novel pyran compounds with other complementary photochromic compounds are described.
描述了一系列新颖的光致变色苯并吡喃和萘并吡喃化合物,其在苯并吡喃或萘并吡喃环的2-位置上取代有(1)环丙基基团和(2)苯基、取代苯基或5-成员芳香杂环基团。还描述了含有或被涂覆有这些化合物的有机宿主材料。描述了包含新型吡喃化合物或新型吡喃化合物与其他互补光致变色化合物组合的眼科或平面透镜等物品。