A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/88 (2006.01) A61K 8/44 (2006.01) A61K 8/64 (2006.01) A61Q 5/00 (2006.01) A61Q 5/02 (2006.01) A61Q 5/12 (2006.01)
Patent
CA 2324302
The invention concerns the use in a cosmetic composition of at least a poly-aminoacid of general formula (I) in which X is -O-, -S- or -NR¿3?; R¿1? represents in particular a hydrogen atom or a C¿1?-C¿40? alkyl radical; R¿2? represents in particular a hydrogen atom or an optionally substituted alkyl radical; R¿3? represents a hydrogen atom or an alkyl radical; R¿4? represents a hydrogen atom or a radical such as NH¿2?, OH, SH, -CHOHCH¿3?, -CONH¿2?; n is a number greater than 1 such that the poly-aminoacid derivative molecular weight ranges between 200 and 200000. The invention also concerns the use of said derivatives for keratinous fibre strengthening and care.
L'invention concerne l'utilisation dans une composition cosmétique, d'au moins un dérivé de polyamino-acide de formule générale (I), dans laquelle: X est -O- , -S- ou -NR3, R1 représente notamment un atome d'hydrogène ou un radical alkyle en C1-C40, R2 représente notamment un atome d'hydrogène ou un radical alkyle éventuellement substitué R3 représente un atome d'hydrogène ou un radical alkyle R4 représente notamment un atome d'hydrogène ou un radical tel que NH2, OH, SH, -CHOHCH3, -CONH2 n est un nombre moyen supérieur à 1 tel que le poids moléculaire du dérivé de polyamino-acide soit compris entre 200 et 200.000. L'invention concerne aussi l'utilisation de ces dérivés dans le renforcement et les soins des fibres kératiniques.
Blaise Christian
Philippe Michel
L'oreal
Robic
LandOfFree
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