Invention Grant
US06379591B1 Naphthopyrans annelated in C5-C6 with a lactam-type C6 ring and compositions and (co)polymer matrices containing them
失效
Naphthopyrans在C5-C6中以内酰胺型C6环取代，并含有它们的组合物和（共）聚合物基质
- Patent Title: Naphthopyrans annelated in C5-C6 with a lactam-type C6 ring and compositions and (co)polymer matrices containing them
- Patent Title (中): Naphthopyrans在C5-C6中以内酰胺型C6环取代，并含有它们的组合物和（共）聚合物基质
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Application No.: US09590405Application Date: 2000-06-08
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Publication No.: US06379591B1Publication Date: 2002-04-30
- Inventor: Olivier Breyne
- Applicant: Olivier Breyne
- Main IPC: G02B523
- IPC: G02B523
Abstract:
The invention relates to novel naphthopyran-type compounds having a lactam-type 6-membered ring annelated in position C5-C6. These compounds have the formula (I) given below: These compounds (I) have interesting photochromic properties. The invention also relates to their preparation, to their applications as photochromes, as well as to the compositions and (co)polymer matrices containing them.
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