申请人:NITTO DENKO CORPORATION
公开号:US10005787B2
公开(公告)日:2018-06-26
This disclosure is related to photo-stable chromophores which are useful in various applications. Chromophores disclosed herein include a bis-triazole core, two electron-donors at C-4 and C-8, and two groups derived from pentaerythritol (R═OR5) or 1,1,1-tris(hydroxymethyl)methane (R═H) at N-2 and N-6. Such structures have been proven to have greater then five times higher photo-stability than their analogs with simpler alkyl groups at N-2 and N-6.
本公开涉及在各种应用中有用的光稳定发色团。本文公开的发色团包括一个双三唑核心,C-4 和 C-8 处的两个电子供体,以及 N-2 和 N-6 处的两个来自季戊四醇(R═OR5)或 1,1,1-三(羟甲基)甲烷(R═H)的基团。事实证明,这种结构的光稳定性比 N-2 和 N-6 上含有较简单烷基的类似物高出五倍以上。