Patent ID: 6770347
Filing Date: 2004-08-03
Classification: B32B,C09B,G11B,Y10T

Abstract:
A cyanine dye compound represented by formula (I): wherein A1 and A2 each independently represent a benzene ring or a naphthalene ring; R1, R1â€², R2, R2â€², R3 and R3â€² each independently represent a substituted or unsubstituted alkyl group, provided that at least one of R1 and R1â€² represents an alkyl group substituted with a hydroxyl group or an alkoxyl group having 1 to 6 carbon atoms; R4 represents a substituent on the methine chain; q represents an integer of 0 or greater; p represents an integer of 1 to 4; B represents 0, 1 or 2; and Xpâˆ’ represents a p-valent anionic tetracyanoquinodimethane compound represented by formula (II): wherein R5 represents a substituted or unsubstituted alkylene group; L represents a single bond or a divalent linking group; R6 represents a substituent; p is as defined above; and r is an integer of 0 to 3.