Process for derivatizing polyglucosamines

Details Process for derivatizing polyglucosamines Process for derivatizing polyglucosamines

C - Chemistry, Metallurgy

08

B

C08B 37/00 (2006.01) C08B 37/08 (2006.01)

Patent

CA 2173642

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 or ionically bonded form. 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.

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