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1. (WO1998050807) PHOTOCHROMIC COMPOSITIONS, PHOTOCHROMIC COMPOUNDS (CO)POLYMERS MATRICES

Pub. No.:    WO/1998/050807    International Application No.:    PCT/US1998/009073
Publication Date: Fri Nov 13 00:59:59 CET 1998 International Filing Date: Sat May 02 01:59:59 CEST 1998
IPC: C07D 311/92
G02B 5/23
Applicants: CORNING INCORPORATED
BREYNE, Olivier
CHAN, You-Ping
HENRY, David
LAFOSSE, Xavier
Inventors: BREYNE, Olivier
CHAN, You-Ping
HENRY, David
LAFOSSE, Xavier
Title: PHOTOCHROMIC COMPOSITIONS, PHOTOCHROMIC COMPOUNDS (CO)POLYMERS MATRICES
Abstract:
The object of the present invention is a photochromic composition incorporating: + 2-(p-dimethylaminophenyl)-2-(p-methoxyphenyl)-5-methyl-7,9-dimethoxy-[2H]-naphtho[1,2-b]pyran (compound (I)), and + 3-(p-methoxyphenyl)-3-phenyl-6-morpholino-3H-naphtho-[2,1-b]pyran (compound (II)). The invention also relates to said compounds (I) and (II) per se, (co)polymer matrices containing same, advantageously in a mixture, as well as finished products constituted wholly or in part of such matrices and/or containing one and/or the other of said compounds (I) and (II).