METHOD AND COMPOSITION FOR PERMANENTLY SHAPING HAIR

A composition for permanent hair shaping comprising (i) 1 to 30 % by weig ht of an N-alkyl-2-mercaptoacetamide of formula (I), or the salt thereof, wh erein R1 is a straight chain alkyl residue with 3 to 6 carbon atoms or a str aight chain hydroxyalkyl with 3 to 6 carbon atoms, R2 and R3 are, indepe...

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Bibliographic Details
Main Authors CASSIER, THORSTEN, STEINBRECHT, KARIN, LEDE, MICHAEL
Format Patent
LanguageEnglish
French
Published 31.01.2008
Subjects
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Summary:A composition for permanent hair shaping comprising (i) 1 to 30 % by weig ht of an N-alkyl-2-mercaptoacetamide of formula (I), or the salt thereof, wh erein R1 is a straight chain alkyl residue with 3 to 6 carbon atoms or a str aight chain hydroxyalkyl with 3 to 6 carbon atoms, R2 and R3 are, independen tly from each other, hydrogen or straight chain alkyl residues with 1 to 3 c arbon atoms, (ii) 0.1 to 15 % by weight of at least one alkalizing agent sel ected from the group consisting of lithium hydroxide, earth alkali metal hyd roxides; hydroxyalkyl substituted amines with 1 to 3 alkyl residues comprisi ng 1 to 4 carbon atom in the alkyl residue and one or two hydroxyl groups on at least one of said alkyl residues; 2,2-imino-bis-ethanoliminourea (guanid ine carbonate), tetrahydro-1,4-oxazine, 2-aminoethansulfonic acid and alkali ne amino acids; and (iii) 5 to 95 % by weight of water, and the method of pe rmanently shaping hair using said composition.
Bibliography:Application Number: CA20072658487