KOSMETISKT MEDEL PAO BASEN AV N-HYDROXIPROPYLISOPROPYLETERKITOSANER SAMT NYA N-HYDROXIPROPYLISOPROPYLETERDERIVAT AV KITOSAN.

摘要

PCT No. PCT/EP87/00774 Sec. 371 Date Jul. 29, 1988 Sec. 102(e) Date Jul. 29, 1988 PCT Filed Dec. 12, 1987 PCT Pub. No. WO88/05790 PCT Pub. Date Aug. 11, 1988.The present invention relates to a cosmetic for the treatment of hair and skin which is characterized by a content of novel N-hydroxy-propyl-isopropyl ether chitosans consisting of (a) 4 to 40 mole percent of monomer units having the formula (I) <IMAGE> (I) and (b) 60 to 96 mole percent of monomer units having the formula (II) <IMAGE> (II) wherein R1 and R2 are identical or different and represent hydrogen or the group <IMAGE> wherein n equals 1 or 2, with the condition that in at least half the units having the formula (II) R1 and R2 do not simultaneously represent hydrogen. The present invention also relates to novel N-hydroxy-propyl-isopropyl ether chitosans.