C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 213/38 (2006.01) A61K 8/34 (2006.01) A61K 8/41 (2006.01) A61K 8/49 (2006.01) A61Q 5/10 (2006.01) C07D 213/36 (2006.01)
Patent
CA 2424961
Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein X is selected from halogen and R2SO4; R3 is selected from C1 to c2 alkyl or hydroxyethyl; R2 is selected from C1 to C22 alkyl and C1 to C22 mono and dihydroxyalkyl; and R is selected from of C1 to C16 alkyl, C1 to c10 hydroxyalkyl, C1 to C6 alkoxyalkyl and benzyl.
La présente invention concerne des agents de couplage de compositions de coloration capillaire permettant la coloration oxydante des cheveux, correspondant à des composés de formule (1) dans laquelle: X est choisi parmi halogène et R?2¿SO¿4?; R?3¿ est choisi parmi alkyle ou hydroxyéthyle en C¿1? à C¿2?; R?2¿ est choisi parmi alkyle en C¿1? à C¿22? et mono et dihydroxyalkyle en C¿1? à C¿22?; et R est choisi parmi alkyle en C¿1? à C¿16?, hydroxyalkyle en C¿1? à C¿10?, alkoxyalkyle et benzyle en C¿1? à C¿6?.
Lim Mu-Ill
Pan Yuh-Guo
Popp Margaret
Mbm Intellectual Property Law Llp
P&g-Clairol Inc.
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