Use of protein-silane/siloxane copolymers for reducing damage to hair caused by flexure and/or abrasion thereof
The use of a protein-siloxane and/or protein-silane copolymer in the preaparation of a composition for reducing damage to hair caused by flexure and/or abrasion thereof. Preferably, the relative amounts of the protein and the silane compound is such that in the range of 0.1 to 0.4 silane molecule is...
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Zusammenfassung: | The use of a protein-siloxane and/or protein-silane copolymer in the preaparation of a composition for reducing damage to hair caused by flexure and/or abrasion thereof. Preferably, the relative amounts of the protein and the silane compound is such that in the range of 0.1 to 0.4 silane molecule is present for each reactive amino group of the protein. More preferably, a copolymer of formula (I) wherein P is the residue of a hydrolysed protein R-NH2; each R is independently the residue of an organofunctional silane HR -Si(R)-OH wherein R are each independently methyl, hydroxy, alkoxy having 1 to 6 carbon atoms; R and R are each independently methyl, hydroxy, alkoxy having 1 to 6 carbon atoms or a residue of a compound of formula (IA) or (IB): wherein R, R , R and R are each independently as defined; and n corresponds to the number of reacted amino groups, preferably in the range of from 1 to 101, having 0.1 to 0.4 silane molecule per reactive amino group of the protein. More preferably, R is the residue of hydrolysed vegetable protein, preferably potato protein. Even more preferably R is a -(CH2)3-O-CH2-CH(OH)CH2- group. |
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