Polyamino acid derivatives and use thereof in compositions for treating keratin fibers

31 140 2 3 4 232 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; Rrepresents in particular a hydrogen atom or a C-Calkyl radical; Rrepresents in particular a hydrogen atom or an optionally substituted alkyl r...

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Bibliographic Details
Main Authors Philippe, Michel, Blaise, Christian
Format Patent
LanguageEnglish
Published 08.01.2008
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Summary:31 140 2 3 4 232 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; Rrepresents in particular a hydrogen atom or a C-Calkyl radical; Rrepresents in particular a hydrogen atom or an optionally substituted alkyl radical; Rrepresents a hydrogen atom or an alkyl radical; Rrepresents a hydrogen atom or a radical such as NH, OH, SH, -CHOHCH, -CONH; 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