C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
25/111, 261/48
C04B 28/00 (2006.01) C04B 18/24 (2006.01) C04B 24/26 (2006.01) C04B 38/10 (2006.01)
Patent
CA 2311940
A method of making a composite product such as a building board, includes the steps of mixing together finely divided lignocellulosic fibres, a hydraulic binder, and water optionally containing a polyvinyl alcohol, to form a paste; introducing a foam generated from a polyvinyl alcohol into the paste and mixing to form a foamed product; forming the foamed product into a desired shape; and allowing the hydraulic binder to set to form the composite product.
On décrit un procédé de fabrication d'un produit composite, tel qu'un panneau de construction, qui consiste à mélanger des fibres lignocellulosiques finement divisées, un liant hydraulique et de l'eau contenant éventuellement un polyalcool de vinyle pour former une pâte; à ajouter à cette pâte une mousse obtenue à partir du polyalcool de vinyle et mélanger pour former un produit mousse; à donner au produit mousse la forme désirée; et à laisser durcir le liant hydraulique pour former le produit composite.
Smart & Biggar
Windsor Technologies Limited
LandOfFree
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