REDUCTIVE COSMETIC COMPOSITION FOR PERMANENT CONTAINING AN N-(MERCAPTO ALKYL) SUCCINAMIC ACID OR AN N-(MERCAPTO ALKYL) SUCCINIMIDE ACID DERIVATIVE AND ITS USE IN 2 PROCESS OF PERMANENT WAVING OF THE HAIR

摘要

SHORT Anonymous said Company: L'OREAL "Reducing cosmetic composition for permanent-containing derivative of N- (mercapto alkyl) succinamic or N- (mercapto alkyl) succinimide, and its use in a hair perming process" Invention: MAIGNAN Jean - Gerard MALLE Cosmetic composition for the treatment of Hair. This composition contains, in a suitable vehicle a reducing agent having the following general formula: (I) wherein: n is 2 or 3 A represents a divalent radical chosen from: (I) - (CH2) m-, m being 2 or 3, (ii) , R3 and R4, identical or different, representing an alkyl radical having 1 to 4 carbon atoms or R3 and R4 form together with the adjacent carbon atoms, a cyclohexane ring, and (iii) , R5 and R6, identical or different, representing a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms or R5 and R6 taken together with the adjacent carbon atoms, a benzene ring, R1 represents a hydrogen atom, hydrogen and R2 is hydroxy or R1 and R2 taken together form a single bond, and the salts of an organic or inorganic base of the said compounds in free acid form. Use of the composition for the first step of a permanent hair shaping operation.