Naphthopyrans annelated in C5-C6 with a lactam-type C6 ring and compositions and (co)polymer matrices containing them
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 applic...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | 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. |
|---|