Patent ID: 6767394
Filing Date: 2004-07-27
Classification: C09B,C09D,Y10T

Abstract:
A composition comprising a dye of Formula (I) and a dye of Formula (II) or salts thereof: whereinAr1, Ar2, Ar3, Ar4 and Ar5 are each independently optionally substituted aryl; R1 is alkyl, alkenyl, alkynyl, pyridinium or aryl, each of which is substituted or unsubstituted, or H; R2 is alkyl, alkenyl, alkynyl, pyridinium or aryl each of which is substituted or unsubstituted, H, C(O)OH, CN, NR5R6, or C(O)NR5R6; and R3, R4, R5 and R6 each independently are alkyl, alkenyl, alkynyl or aryl, each of which is substituted or unsubstituted, or H, L is H or L and R4 together with the N atom to which they are attached form an optionally substituted 5- or 6-membered ring.