申请人:——
公开号:US20030078441A1
公开(公告)日:2003-04-24
The invention provides photochromic bis-naphthopyran compounds as well as methods for their manufacture and their use. The bis-naphthopyran compounds of the invention exhibit a wide range of color, i.e., from pink to purple to blue gray, upon activation by a source of UV light. Additionally, the bis-naphthopyran compounds of the present invention exhibit broad coloration ability, fast response as to both color change on activation and return to original color, and good fatigue-resistance.
该发明提供了光致变色的双萘吡喃化合物及其制备和使用方法。该发明的双萘吡喃化合物在受到紫外光源激活时,表现出从粉色到紫色到蓝灰色的广泛颜色范围。此外,本发明的双萘吡喃化合物表现出广泛的着色能力,对激活后的颜色变化和恢复到原始颜色的反应速度快,并且具有良好的耐疲劳性。