C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
C12P 19/26 (2006.01) C08B 37/08 (2006.01) C12P 19/04 (2006.01) C12N 9/02 (2006.01)
Patent
CA 2341470
The present invention is directed to homogeneous phase enzyme-catalyzed processes for producing modified chitosan polymers or oligomers. An enzyme is reacted with a phenolic substrate in the presence of a chitosan polymer or oligomer to produce a modified chitosan polymer or oligomer. The invention also includes modified chitosan polymers or oligomers produced by the novel processes, in particular modified chitosan polymers or oligomers having useful functional properties, such as base solubility and/or high viscosity.
La présente invention concerne des procédés à catalyse enzymatique en phase homogène de production de polymères ou d'oligomères de chitosane modifiés. En faisant réagir un enzyme et un substrat phénolique en présence d'un polymère ou d'un oligomère de chitosane, on obtient un polymère ou un oligomère modifié de chitosane. L'invention concerne également des polymères ou des oligomères de chitosane modifiés obtenus par de nouveaux procédés, en particulier des oligomères de chitosane modifiés dotés de propriétés fonctionnelles utiles, telles que solubilité dans les bases ou viscosité élevée.
Kumar Guneet
Payne Gregory F.
Kumar Guneet
Osler Hoskin & Harcourt Llp
Payne Gregory F.
University Of Maryland Baltimore County
University Of Maryland - Biotechnology Institute
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