PROCEDURE FOR THE PREPARATION OF ACTIVATED CHITOSANES AND THEIR USE IN THE PREPARATION OF CHITOSAN DERIVATIVES.

摘要

THE INVENTION REFERS TO A PROCEDURE FOR PRODUCING ACTIVATED CHITOSANENE WHICH CONSISTS OF TREATING A CHITOSAN WITH AN ACID TO FORM A SALT AND REACTION THE SALT WITH THE BASE. THE ACID AND BASE USED IN THE ACTIVATION OF QUITOSAN IS SUPPLIED IN A SUSPENSION MEDIA THAT PREVENTS THE FORMATION OF SALT FROM CHITOSAN IN SOLUTION AND IN PROCESS. AS A SUSPENSION MEDIA, A WATER SOLUTION OF INORGANIC SALTS MAY BE USED. AS A SOLVENT AN ORGANIC OR AQUEOUS SOLVENT IS USED. THE INVENTION DESCRIBES A PROCEDURE FOR THE PRODUCTION OF SOLUBLE AND INSOLUBLE CHITOSAN DERIVATIVES IN WATER THROUGH THE TREATMENT OF ACTIVATED CHITOSANE WITH APPROPRIATE REAGENTS FOR THE TRANSFORMATION OF POLYSACCHARIDE (AMINES).