C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 211/45 (2006.01) A61K 8/41 (2006.01) A61Q 5/10 (2006.01) C07C 209/00 (2006.01) C07C 211/44 (2006.01) C07C 215/76 (2006.01) C07C 217/76 (2006.01)
Patent
CA 2428186
Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula at least one coupler comprising a compound of the formula (1): wherein R is selected from of C1 to C2 alkyl and hydroxyethyl, R1 and R2 are each independently selected from the group consisting of C1 to C5 alkyl, C3 to C6 cycloalkyl, C1 to C5 alkoxy, C1 to C5 hydroxyalkyl, C1 to C5 hydroxyalkoxy, or R1 and R2 together with the carbon atom to which they are attached form a C3 to C6 cycloalkyl group.
Cette invention concerne des agents de couplage pour compositions de teinture oxydante capillaire représentés par la formule (I), l'un au moins de ces agents renfermant un composé de formule (I). Dans cette formule, R est pris dans le groupe comprenant un alkyle en C¿1? - C¿2? et un hydroxyéthyle, R?1¿ et R?2¿ sont chacun indépendamment alkyle en C¿1? - C¿5?, cycloalkyle en C¿3? - C¿6?, alkoxy en C¿1? - C¿5?, hydroxyalkyle en C¿1? - C¿5?, hydroxyalkoxy en ¿1? - C¿5?, ou bien R?1¿ et R?2¿ ensemble avec l'atome de carbone auquel ils sont liés forment un groupe cycloyalkyle en C¿3? - C¿6?.
Lim Mu-Ill
Pan Yuh-Guo
Popp Margaret
Mbm Intellectual Property Law Llp
P&g-Clairol Inc.
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