Chitosan-based adhesives and uses thereof

Details Chitosan-based adhesives and uses thereof Chitosan-based adhesives and uses thereof

C - Chemistry, Metallurgy

09

J

C09J 105/08 (2006.01) C09J 11/06 (2006.01) C09J 197/02 (2006.01)

Patent

CA 2691783

There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood--based panel.

On présente un adhésif constitué de chitosane et, de manière facultative, d'un agent de réticulation. On divulgue aussi une méthode pour la préparation d'un tel adhésif. On présente aussi un panneau de bois fabriqué à l'aide de cet adhésif. En outre, on fournit une méthode de fabrication de tels panneaux en bois. La méthode consiste à préparer un mélange composé de bois, de chitosane, facultativement d'un agent de réticulation, et facultativement d'un acide, à étendre ce mélange sur une couche et à presser celle-ci pendant que l'on applique de la chaleur et de la pression, cela pour obtenir un panneau de bois.

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