Patent ID: 7342112
Filing Date: 2008-03-11
Classification: C07D,C09B,C09K,G02B,G02F,G03C

Abstract:
1. A photochromic material represented by Formula II: wherein: (a) A is chosen from naphtho, benzo, phenanthro, fluorantheno, antheno, quinolino, thieno, furo, indolo, indolino, indeno, benzofuro, benzothieno, thiopheno, indeno-fused naphtho, heterocyclic-fused naphtho, and heterocyclic-fused benzo; (b) B and B′ are each independently chosen from: (c) i is an integer chosen from 0 to the total available positions on A, and each R wherein: (a) each Q (b) c, d, e, and f are each independently chosen from an integer ranging from 0 to 20, inclusive; and each S (c) P is chosen from: aziridinyl, hydrogen, hydroxy, aryl, alkyl, alkoxy, amino, alkylamino, alkylalkoxy, alkoxyalkoxy, nitro, polyalkyl ether, (C (d) d′, e′ and f′ are each independently chosen from 0, 1, 2, 3, and 4, provided that a sum of d′+e′+f′ is at least 2.