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

1986-11-21

1988-10-25

Ore, Dale R.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

8405, 8406, 132 7, 424 70, 536 20, A61K 706, A61K 708, A61K 713, C08B 3708

Patent

active

047803100

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 of (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 as 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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