Photochromic naphthopyrans, compositions and articles containing them
申请人:Corning Incorporated
公开号:US06096246A1
公开(公告)日:2000-08-01
The invention relates to photochromic compounds of general formula (I), in which: R3 and R5 are C1-C6 alkoxy groups and the rest of the R groups represent various substituents. ##STR1##