Chitosan salts and process for the preparation thereof

Details Chitosan salts and process for the preparation thereof Chitosan salts and process for the preparation thereof

C - Chemistry, Metallurgy

08

B

C08B 37/08 (2006.01) A61L 15/28 (2006.01) A61L 15/60 (2006.01)

Patent

CA 2208892

Disclosed is a method for producing a water-swellable, water-insoluble chitosan salt having improved absorption properties. The method involves forming a mixture of a chitosan, water, an acid, and, optionally, a crosslinking agent, recovering the formed chitosan salt from the mixture and, optionally, treating said recovered chitosan salt with heat or under humid conditions.

L'invention concerne un procédé de préparation d'un sel de chitosane gonflable dans l'eau, insoluble dans l'eau et possédant des propriétés améliorées d'absorption. Ce procédé consiste à former un mélange de chitosane, d'eau, d'un acide et, éventuellement, d'un agent de réticulation, à récupérer le sel de chitosane obtenu à partir du mélange et, éventuellement, à traiter ledit sel thermiquement ou dans des conditions d'humidité.

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