Foamed polymer-fiber composite building material

Details Foamed polymer-fiber composite building material Foamed polymer-fiber composite building material

C - Chemistry, Metallurgy

08

J

C08J 9/06 (2006.01) B27N 3/00 (2006.01) C08J 9/00 (2006.01) C08J 9/04 (2006.01) E04F 13/18 (2006.01) E04F 15/10 (2006.01) E04F 11/18 (2006.01)

Patent

CA 2325692

Foamed polymer-fiber composites (100), building materials and methods of making such building materials are provided by this invention. The composites include about 35-75 wt.% of a poymeric resin, about 25-65 wt.% fiber and have a specific gravity of less than about 1.25 g/cc. The low density is provided by the introduction of a blowing agent or gas into a molten precursor of the composite during thermoforming, such as in an extrusion operation.

L'invention concerne des composites (100) de polymère-fibre moussés, des matériaux de construction et des procédés de fabrication de ces matériaux de construction. Les composites comprennent environ 35-75 % en poids d'une résine polymère, environ 25-65 % en poids de fibre et présentent une densité inférieure à environ 1,25 g/cc. La faible densité est obtenue par l'introduction d'un agent ou d'un gaz gonflant dans le précurseur fondu du composite au cours d'un thermoformage, tel qu'une opération d'extrusion.

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