A METHOD OF PREPARING COMPOUNDS
Application 1298/MUMNP/2005 published 2006-05-12, filed 2005-11-23
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. Drawing: NIL Total Pages: 33
Applicant
CORNING S.A.
7 BIS AVENUE DE VALVINS, 77920 SAMOIS SUR SEINE, FRANCE.
Inventor
1. OLIVIER BREYNE 2. YOU-PING CHAN 3. PATRICK JEAN
International Info
Classification: C07D 311/94, 311/92, 311/78, C07C 39/23, G02B 5/23, C08K 5/15
Publication Number: WO 01/36406
Application Date: 2000-11-14
Priority Information
99/14425 FRANCE 1999-11-17