C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 209/56 (2006.01) C07D 311/78 (2006.01) C07D 491/04 (2006.01) C08G 73/06 (2006.01) C08K 5/3415 (2006.01) G02B 5/23 (2006.01) G02B 27/00 (2006.01)
Patent
CA 2305753
The object of the present invention is novel [indole]naphthopyrans compounds as well as the compositions and (co)polymer matrices containing them. Said compounds have interesting photochromic properties. Another object of the present invention is a method of preparing said novel compounds, as well as intermediates useful in said preparation.
Cette invention, qui a trait à de nouveaux composés d'[indole]naphtopyrans ainsi qu'à des compositions et des matrices (co)polymères les contenant, concerne également un procédé de mise au point de ces composés ainsi que d'intermédiaires entrant dans leur élaboration.
Bourchteine Konstantine
Breyne Olivier
Corning S.a.
Gowling Lafleur Henderson Llp
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