Patent ID: 9097916
Filing Date: 2015-08-04
Classification: C07D,C09K,G02B,G02C,Y10T

Abstract:
1. An ophthalmic device comprising at least one photochromic material represented by graphic formulas I and II or a mixture thereof, comprising an indeno-fused naphthopyran comprising (a) a pi-conjugation extending group bonded to the 11-position of said indeno-fused naphthopyran, said pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto, said pi-conjugation extending group extending the pi-conjugation system of said indeno-fused naphthopyran, wherein the 13-position of said indeno-fused naphthopyran is substantially free of spiro-substituents, and (b) a residue of at least one of a reactive substituent independently represented by one of: -D-E-G-J; -D-G-J; -D-J; wherein: (i) each -D- is independently: (ii) each -E- is independently a dicarboxylic acid residue or a derivative thereof, said dicarboxylic acid residue being an aliphatic dicarboxylic acid residue, a cycloaliphatic dicarboxylic acid residue or an aromatic dicarboxylic acid residue, wherein a first carbonyl group of said dicarboxylic acid residue forms a bond with -G- or -D-, and a second carbonyl group of said dicarboxylic acid residue forms a bond with -G-; (iii) each -G- is independently: (iv) each -J is independently a residue of a reactive group selected from the group consisting of acryl, methacryl, crotyl, 2-(methacryloxy)ethylcarbamyl, 2-(methacryloxy)ethoxycarbonyl, 4-vinylphenyl, vinyl, 1-chlorovinyl or epoxy.