Composite article and method of making same

B - Operations – Transporting – 27 – N

Patent

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B27N 3/00 (2006.01) B27N 3/08 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2343387

Disclosed herein is a cellulosic composite article and steam injection press methods of making the same by combining a phenolic resin with cellulosic material to form a mixture and, thereafter, providing a catalyzing agent, such as aluminum chloride, to the mixture. As an alternative, the method may include the steps of combining a catalyzing agent with a cellulosic material to form a mixture and, thereafter, providing a phenolic resin to the mixture. The method further includes the steps of forming a mat from the catalyzing agent-containing mixture and consolidating the catalyzing agent-containing mat in a pressing apparatus under heat, steam, and pressure to form the consolidated cellulosic product.

L'invention porte sur un article composite cellulosique et sur des procédés de pressage par injection de vapeur utilisés dans la fabrication de cet article et consistant à combiner une résine phénolique avec un matériau cellulosique de façon à obtenir un mélange et à ajouter au mélange un agent catalyseur tel que le chlorure d'aluminium. En variante, le procédé peut consister à combiner un agent catalyseur avec un matériau cellulosique de façon à obtenir un mélange et ajouter à ce mélange une résine phénolique. Le procédé consiste en outre à former un mat à partir du mélange contenant l'agent catalyseur et à consolider ce mat contenant l'agent catalyseur dans un appareil de pressage par chaleur et vapeur, en le compressant de façon à former le produit cellulosique consolidé.

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