发明授权
US08388872B2 Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
有权
具有延伸的π-共轭体系的光致变色材料和包含其的组合物和制品
- 专利标题： Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
- 专利标题（中）： 具有延伸的π-共轭体系的光致变色材料和包含其的组合物和制品
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申请号： US13400734申请日： 2012-02-21
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公开(公告)号： US08388872B2公开(公告)日： 2013-03-05
- 发明人: Anu Chopra , Jun Deng , Beon-Kyu Kim , David B. Knowles , Frank F. Molock, Jr. , Victor A. Montes , Stephen D. Straight , Wenjing Xiao , Huayun Yu
- 申请人： Anu Chopra , Jun Deng , Beon-Kyu Kim , David B. Knowles , Frank F. Molock, Jr. , Victor A. Montes , Stephen D. Straight , Wenjing Xiao , Huayun Yu
- 申请人地址： US FL Pinellas Park
- 专利权人： Transitions Optical, Inc.
- 当前专利权人： Transitions Optical, Inc.
- 当前专利权人地址： US FL Pinellas Park
- 代理商 Deborah M Altman; Frank P. Mallak
- 主分类号： G02B5/23
- IPC分类号： G02B5/23 ; C07D311/78 ; C07D311/94
摘要：
The present invention provides a photochromic material which is an indeno-fused naphthopyran of structural formulas I or II, having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic material.
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