发明授权
US06719925B1 Naphthopyrans with a heterocycle in the 5, 6-position, preparation, and (co)polymer compositions and matrices containing them
失效
在5,6位，具有（共）聚合物组合物和含有它们的基质中的杂环的萘并吡喃
- 专利标题： Naphthopyrans with a heterocycle in the 5, 6-position, preparation, and (co)polymer compositions and matrices containing them
- 专利标题（中）： 在5,6位，具有（共）聚合物组合物和含有它们的基质中的杂环的萘并吡喃
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申请号： US09706122申请日： 2000-11-03
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公开(公告)号： US06719925B1公开(公告)日： 2004-04-13
- 发明人: Olivier Breyne , You-Ping Chan , Patrick Jean
- 申请人： Olivier Breyne , You-Ping Chan , Patrick Jean
- 优先权： FR9913791 19991104
- 主分类号： G02B528
- IPC分类号： G02B528
摘要：
The present invention relates to novel compounds of the naphthopyran type with a fused heterocycle in the 5,6-position. These compounds have formula (I) or (II) given below: These compounds (I) or (II) have valuable photochromic properties. The invention further relates to their preparation, to their applications as photochromic substances, and to the (co)polymer compositions and matrices containing them.
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