Patent ID: 7615646

Claim:
A compound of the following general formula (XIII) wherein R a , R c , R d and R f are independently selected from hydrogen, halogen and —SO 3 − ; R b is selected from V or L-V, where L is a bond or C 1-22 straight or branched alkyl, optionally containing 0, 1 or 2 unsaturations or unsaturated pendent or interchain groups selected from alkenyl, alkynyl and aryl groups; and V is selected from hydrogen, —SO 3 − , —COOH and a reactive group; R e is hydrogen; T is wherein each L and V are independently as defined above; Y is selected from the group consisting of O, S, —CH═CH—, >C(CH 3 ) 2 , and wherein each L and V are independently as defined above; Z a and Z b are, independently, fused n is an integer from 1-4; and p, u, v and r are independently an integer from 0-4, wherein at least one group -L-V in groups T and/or Y is a substituted alkyl group.