发明名称 |
PHOTOCHROMIC INDENO-FUSED NAPHTHOPYRANS |
摘要 |
Photochromic materials comprising indeno-fused naphthopyrans having substituents comprising a 4-fluorcVhenyl group and a 4-aminophenyl group bonded to the 3-position of the indeno-fused naphthopyran are disclosed. The photochromic materials may exhibit faster fade rates as compared to similar indeno-fiised naphthopyrans without a 4-fluorophenyl group and a 4-aminophenyl group bonded to the 3-position of the indeno-fiised naphthopyran. Substituted 2-propyn-l-ols utilized for the synthesis of the indeno-fused naphthopyrans disclosed herein are disclosed. Photochromic compositions and articles, such as optical elements, incorporating the photochromic materials disclosed herein are also disclosed.
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申请公布号 |
KR20080078671(A) |
申请公布日期 |
2008.08.27 |
申请号 |
KR20087014715 |
申请日期 |
2006.12.05 |
申请人 |
TRANSITIONS OPTICAL, INC. |
发明人 |
CHOPRA ANU |
分类号 |
C07D311/92;C07D295/096;G03C1/73 |
主分类号 |
C07D311/92 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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