| 摘要 |
<p>Cosmetic products for treating hair or skin, characterized by a content of new N-hydroxybutyl-chitosans or their salts, consisting of a) 4 to 40 moles % of monomer units of formula (I), and b) 60 to 96 moles % of monomer units of formula (II), where R?1 and R2¿ are identical or different and represent hydrogen or the group H, n being equal to a whole number from 1 to 5, provided that in the presence of at least 50% of the units of formula (II), R?1 and R2¿ do not simultaneously represent hydrogen. Also described are new N-hydroxybutyl-chitosans and their salts as well as a process for producing these new compounds from butylene oxide and chitosan.</p> |
