Patent ID: 6362248
Filing Date: 2002-03-26
Classification: C09K,G02B,G03C

Abstract:
A photochromic polymerizable composition comprising:(A) at least one polyfunctional (meth)acrylate monomer; (B) at least one chromene compound selected from among compounds of the following formulas (3) and (5); â€ƒwherein, R5 and R6 may be the same or different, and represent hydrogen atom, halogen atom, alkyl group or aralkyl group; R7 and R8 may be the same or different, and represent aryl group or aromatic heterocyclic group; wherein any of the groups R7 and R8 may be further substituted; or R7 and R8 are bonded to each other to form a ring together with the carbon atom to which they are joined; wherein, at least one of said aryl group or said aromatic heterocyclic group or said ring group represented by R7 and R8 is substituted by at least one of (a) an amino group or (b) a nitrogen-containing heterocyclic group, wherein a hetero nitrogen atom of said heterocyclic group (b) is bonded to said aryl group or to said aromatic heterocyclic group or to said ring group formed by R7 and R8; R9 represents a hydrogen atom or a substituent other than said amino group, said alkyl group or said nitrogen-containing heterocyclic group; R10 represents a substituent other than said amino group or said nitrogen-containing heterocyclic group on the 6-, 7-, 8-, 9- and/or 10-position of the benzochromene ring, â€œaâ€  represents 0, 1, 2 or 3, and, when â€œaâ€  is 2 or 3, the groups R10 may be the same or different, R16 represents (a) substituted or unsubstituted amino group or (b) a nitrogen-containing heterocyclic group bonded to the benzochromene ring via a hetero nitrogen atom, R17 and R18 may be the same or different, and represent alkyl group, aryl group or aromatic heterocyclic groups which may have a substituent, or R17 and R18 are bonded to each other to form a ring, together with the carbon atom to which they are bonded; and (C) at least one compound having an epoxy group in the molecule.