Process for derivatizing polyglucosamines

Details Process for derivatizing polyglucosamines Process for derivatizing polyglucosamines

1995-04-10

1997-04-15

Peselev, Elli

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

Organic compounds

Carbohydrates or derivatives

536 187, 536 20, 536124, C07M 100

Patent

active

056210884

ABSTRACT:
Processes for the preparation of polyglucosamine derivatives, e.g., hydroxypropyl chitosan and carboxymethyl chitosan, are disclosed. The polyglucosamine derivatives can be prepared in a covalently bonded form using a dilute caustic medium. Strong bases and undesirable water-immiscible organic solvents can be avoided. The covalently bonded derivatives dissolve into the dilute caustic medium upon formation. Compositions containing the derivatives and uses for the derivatives are also disclosed.

REFERENCES:
patent: 4954619 (1990-09-01), Lang et al.

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