Patent ID: 8758451
Filing Date: 2014-06-24
Classification: A45D,A61K,A61Q,C09B

Abstract:
1. A functionalized dye comprising at least one chromophore and a color fastness moiety, wherein the chromophore is bound to the color fastness moiety by a linker, wherein said dye is a compound of formula Ia: C is a chromophore of formula IIg: or C is a chromophore represented by the following structural formula: wherein R R R L is a linker of formula (III): wherein L covalently links the chromophore C via the left hand side of formula III to the color fastness moiety F via the right hand side of formula III; a, b, c, d, e, and f are each independently an integer from 0-2, provided that at least one of a, b, c, d, e and f is not 0; R E is NR R F is a color fastness moiety of formula (Va): wherein m, n, o, p, q and r are each independently an integer from 0-2, provided that at least one of m, n, o, p, q and r is not 0; R R K is NR W is NR R R R R or a cosmetically acceptable salt thereof.