发明名称 |
Photochromic materials having extended pi-conjugated systems and compositions and articles including the same |
摘要 |
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. |
申请公布号 |
ZA200708070(B) |
申请公布日期 |
2009.09.30 |
申请号 |
ZA20070008070 |
申请日期 |
2007.09.19 |
申请人 |
TRANSITIONS OPTICAL, INC. |
发明人 |
KIM, BEON, KYU;XIAO, WENJING;CHOPRA, ANU;DENG, JUN;VAN GEMERT, BARRY |
分类号 |
C03C;C07D;C09K;G02B |
主分类号 |
C03C |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|