Patent ID: 7011875
Filing Date: 2006-03-14
Classification: B32B,C09B,G11B,Y10T

Abstract:
1. An optical information-recording medium comprising: a support; and a recording layer capable of recording information by laser beam exposure, wherein the recording layer contains a dye represented by the following formula (I): wherein R 1 , R 2 , R 3 and R 4 each independently represents a hydrogen atom or a substituent; B 1 and B 2 represent ═CR 5 — and —CR 6 ═ respectively, or one of B 1 and B 2 represents a nitrogen atom and the other represents ═CR 5 — or —CR 6 ═; R 5 and R 6 each independently represents a hydrogen atom or a substituent; Q 1 represents a substituted or unsubstituted arylene group, or a substituted or unsubstituted divalent heterocyclic group; and Q 2 represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.