C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 311/94 (2006.01) C07C 39/23 (2006.01) C07D 311/78 (2006.01) C07D 311/92 (2006.01) C08K 5/15 (2006.01) G02B 5/23 (2006.01)
Patent
CA 2392053
The invention relates to novel naphthopyran-type compounds, annelated in position C5-C6 by an indene- or dihydronaphthalene-type carbocycle, which are of the formulae (I) and (II) given below : These compounds (I) and (II) have interesting photochromic properties. The invention also relates to their preparation, to their applications as photochromes, as well as to the compositions and matrices containing them.
L'invention concerne des nouveaux composés de type naphtopyrane annelés en position C¿5?-C¿6? par un carbocycle de type indène ou dihydronaphtalène, et représentés par les formules (I) et (II). Ces composés présentent des propriétés photochromiques intéressantes. L'invention concerne également la préparation desdits composés et leurs applications en tant que photochromes, ainsi que des compositions et des matrices renfermant ces composés.
Breyne Olivier
Chan You-Ping
Jean Patrick
Corning S.a.
Gowling Lafleur Henderson Llp
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