Patent ID: 7326254
Filing Date: 2008-02-05
Classification: A61K,A61Q

Abstract:
1. Ready-to-use agent for the simultaneous brightening and coloring of keratin fibers (A), based on a developer-coupler combination and having a basic pH, said agent containing (a) at least one heterocyclic hydrazone derivative of formula (I), or a physiologically compatible salt thereof: wherein X denotes sulfur, Y denotes C—R3 and Z denotes C—R4, A denotes a hydrogen atom; R1 and R2 can be equal or different and independently of each other denote a saturated or unsaturated (C R3 and R4 can be equal or different and independently of each other denote hydrogen, a halogen atom, a saturated or unsaturated (C and when Y and Z denote C—R3 and C—R4, R3 and R4 together with the remainder of the molecule form a heterocyclic or carbocyclic, saturated or unsaturated, substituted or unsubstituted ring system; (b) at least one coupler or a physiologically compatible salt thereof; and (c) as oxidant a combination of at least one persulfate salt and hydrogen peroxide and/or an addition compound thereof, wherein said addition compound is selected from the group consisting of an addition compound of hydrogen peroxide to urea, an addition compound of hydrogen peroxide to melamine, an addition compound of hydrogen peroxide to sodium borate and an addition compound of hydrogen peroxide to sodium carbonate.