| abstract |
The present invention relates to novel amphoteric polysaccharide compounds with aldehyde function (s) having the formula: in which: P represents a polysaccharide chain, said chain bearing one or more aldehyde functions and optionally one or more -COOV groups, this group may be obtained during the oxidation of certain carbon atoms of a saccharide unit, Y represents a divalent C1-C8 hydrocarbon group, linear or branched, saturated or unsaturated, optionally hydroxylated and optionally comprising at least one ether and / or amine function in the hydrocarbon chain; or a group -Si (R) 2- [O-Si (R) 2] qZ-, p = 0 or 1, andCAT represents an ammonium group or a cationic polymer chain obtained by grafting and polymerization of ethylenic monomers bearing an ammonium function The invention also relates to their use in cosmetics and the compositions comprising them. |