Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
申请人:Kim Beon-Kyu
公开号:US20060228557A1
公开(公告)日:2006-10-12
Various non-limiting embodiments disclosed herein relate to photochromic materials having extended pi-conjugated systems. For example, various non-limiting embodiments disclosed herein provide a photochromic material, such as an indeno-fused naphthopyran, which comprises a group that extends the pi-conjugated system of the indeno-fused naphthopyran bonded at the 11-position thereof. Further, the photochromic materials according to certain non-limiting embodiments disclosed herein may display hyperchromic absorption of electromagnetic radiation as compared to conventional photochromic materials and/or may have a closed-form absorption spectrum that is bathochromically shifted as compared to conventional photochromic materials. Other non-limiting embodiments relate to photochromic compositions and photochromic articles, such as optical elements, made using the disclosed photochromic materials, and methods of making the same.
本文披露的各种非限制性实施例涉及具有扩展π共轭系统的光致变色材料。例如,本文披露的各种非限制性实施例提供了一种光致变色材料,例如吲哚并螺并萘哌啶,其包括延伸吲哚并螺并萘哌啶的π共轭系统的基团,该基团与其11位键合。此外,根据本文披露的某些非限制性实施例,与传统光致变色材料相比,光致变色材料可能显示出电磁辐射的高吸光度,和/或具有相对于传统光致变色材料的向红移的闭合吸收光谱。其他非限制性实施例涉及使用所披露的光致变色材料制造的光致变色组合物和光致变色物品,例如光学元件,以及制造这些物品的方法。