N-cyanomethylated chitosans and hydrolysates thereof

Details N-cyanomethylated chitosans and hydrolysates thereof N-cyanomethylated chitosans and hydrolysates thereof

1995-12-21

1998-04-21

Fonda, Kathleen K.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

514 55, 514847, 536 20, 536124, 424401, A61K 3173, C08B 3708

Patent

active

057417830

ABSTRACT:
The invention relates to N-cyanomethylated chitosans of formula (1) and to the hydrolysates thereof of formula (2), as well as to processes for the preparation of these compounds. The cyanomethylated chitosans, in particular the hydrolysates corresponding to formula (2), find versatile utility as separating membranes, complexing agents, encrustation inhibitors, stabilisers for bleaching liquors, moisture retainers in cosmetic compositions, thickeners and repellents.

REFERENCES:
patent: 2010176 (1935-08-01), Brodersen
patent: 2855428 (1958-10-01), Singer et al.
patent: 5442048 (1995-08-01), Meister et al.
Muzzarelli et al., Carbohydrate Research, 107 (1982), pp. 199-214.
Derwent Abstracts, AN 94-032044, JP 5339598A Dec. 21, 1993.
Derwent Abstracts, AN 84-229987, SU 1067109A Jan. 15, 1984.
Carbohydrate Polymers 24(3), (1994), pp. 209-214.
Carbohydrate Polymers 8(1) (1988), pp. 1-21.

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