C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
167/302, 260/557
C07C 233/43 (2006.01) C07C 233/44 (2006.01) C07C 271/28 (2006.01)
Patent
CA 2001753
The invention relates to novel 5-substituted ortho-amino-phenols of the formula: (see Fig. I) wherein R1 represents a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl radical having 1 to 4 carbon atoms; R2 represents, independently of R1, an alkyl radical having 1 to 4 carbon atoms, an alkoxy radical having 1 to 4 carbon atoms or a benzyl radical; and their acid addition salts and phenates. The compounds of the invention are used to dye hair in a wide range of long-lasting shades.
L'invention concerne de nouveaux ortho-amino-phénols 5-substitués répondant à la formule: (voir fig. I) dans laquelle R1 représente un atome d'hydrogène, un radical alkyle ayant 1 à 4 atomes de carbone ou un radical hydroxyalkyle ayant 1 à 4 atomes de carbone; R2 représente, indépendamment de R1, un radical alkyle ayant 1 à 4 atomes de carbone, un radical alcoxy ayant 1 à 4 atomes de carbone ou un radical benzyle; et leurs sels d'addition avec un acide et leurs phénates. Les composés selon l'invention permettent de teindre les cheveux dans un riche éventail de nuances ayant une bonne résistance.
Andrean Herve
Junino Alex
Lang Gerard
L'oreal
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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