Cosmetic compostions based upon N-hydroxybutyl-chitosans, N- hydroxybutyl- chitosans as well as processes for the production thereof

摘要

The invention is directed to cosmetic compositions for the treatment of hair or skin characterized in that they contain new N- hydroxybutyl- chitosans, or their salts, consisting ofPP (a) 4 to 40 mole percent monomer units of the formula (I) ##STR1## and (b) 60 to 96 mole percent monomer units of the formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are identical or different and designate hydrogen or the group ##STR3## with n being equal to an integer from 1 to 5, provided that R.sup.1 and R.sup.2 are not simultaneously hydrogen in at least 50 percent of the units of formula (II). In addition, it is directed to new N-hydroxybutyl-chitosans and their salts and a process for producing these new compounds from butylene oxide and chitosan.