Patent ID: 7556750

Claim:
A photochromic material comprising: a photochromic naphthopyran; and at least one reactive substituent bonded to the photochromic naphthopyran, wherein each reactive substituent is independently represented by one of: -A-D-E-G-J; -G-E-G-J; -D-E-G-J; -A-D-J; -D-G-J; and -D-J; wherein: (i) each -A- is independently —C(═O)—, —OC(═O)—, —NHC(═O)—, or —CH 2 —; (ii) each -D- is independently: (a) a diamine residue or a derivative thereof, said diamine residue being an aliphatic diamine residue, a cyclo aliphatic diamine residue, a diazacycloalkane residue, an azacyclo aliphatic amine residue, a diazacrown ether residue, or an aromatic diamine residue, wherein a first amine nitrogen of said diamine residue forms a bond with -A- or the photochromic naphthopyran, and a second amine nitrogen of said diamine residue forms a bond with -E-, -G-, or -J; or (b) an amino alcohol residue or a derivative thereof, said amino alcohol residue being an aliphatic amino alcohol residue, a cyclo aliphatic amino alcohol residue, an azacyclo aliphatic alcohol residue, a diazacyclo aliphatic alcohol residue, or an aromatic amino alcohol residue, wherein an amine nitrogen of said amino alcohol residue forms a bond with -A- or the photochromic naphthopyran, and an alcohol oxygen of said amino alcohol residue forms a bond with -E-, -G-, or -J; or said amine nitrogen of said amino alcohol residue forms a bond with -E-, -G-, or -J, and said alcohol oxygen of said amino alcohol residue forms a bond with -A- or the photochromic naphthopyran; (iii) each -E- is independently a dicarboxylic acid residue or a derivative thereof, said dicarboxylic acid residue being an aliphatic dicarboxylic acid residue, 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-; (iv) each -G- is independently: (a) —[(OC 2 H 4 ) x (OC 3 H 6 ) y (OC 4 H 8 ) z ]—O—, wherein x, y, and z, are each independently a number between 0 and 50, and the sum of x, y, and z ranges from 1 to 50; or (b) a polyol residue or a derivative thereof, said polyol residue being an aliphatic polyol residue, a cyclo aliphatic polyol residue, and an aromatic polyol residue, wherein a first polyol oxygen of said polyol residue forms a bond with -E-, -D-, or the photochromic naphthopyran, and a second polyol oxygen of said polyol residue forms a bond with -E- or -J; and (v) each -J is independently a group comprising a reactive moiety or residue thereof; or -J is hydrogen, provided that if -J is hydrogen, -J is bonded to an oxygen of group -D- or -G-, forming a reactive moiety.