Cosmetic compositions based upon n-hydroxypropyl-chitosans, new

Details Cosmetic compositions based upon n-hydroxypropyl-chitosans, new Cosmetic compositions based upon n-hydroxypropyl-chitosans, new

1988-04-22

1989-05-30

Ore, Dale R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

8405, 424 71, 514847, A61K 709, A61K 713, A61K 748, C08B 3708

Patent

active

048352667

ABSTRACT:
Cosmetic compositions are disclosed, for the treatment of skin or hair, with a content of new N-hydroxypropyl-chitosan derivatives, composed of (a) 4 to 40 Mol-% units of Formula (I) ##STR1## and (b) 60 to 96 Mol-% units of Formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are the same or different and are each hydrogen or the group ##STR3## with n being equal to an integer from 1 to 5, with the proviso that in at least 50% of the units (II), R.sup.1 and R.sup.2 are not simultaneously hydrogen, or the salts thereof; along with new N-hydroxypropyl-chitosan derivatives and their salts as well a a process for the production of these new compounds from propylene oxide and chitosan.

REFERENCES:
patent: 3953608 (1976-04-01), Vanlerberghe

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