Moulded body containing plastic and reinforced by natural...

Details Moulded body containing plastic and reinforced by natural... Moulded body containing plastic and reinforced by natural...

B - Operations, Transporting

29

C

B29C 67/24 (2006.01) B27N 1/02 (2006.01) B27N 3/28 (2006.01) B29C 47/00 (2006.01) C08J 5/04 (2006.01)

Patent

CA 2465069

The invention relates to a moulded body containing plastic and reinforced by natural fibres. Said moulded body is produced from fibrous plant or animal material containing residual water, at least one thermoplastic or duroplastic material, and at least one water-binding biopolymer and/or biomonomer, by means of plastic or thermoplastic deformation at a high temperature and/or high pressure, and then by shaping, preferably by means of extrusion. In spite of a residual water content of between 0.3 and 8 wt. %, the inventive moulded body is in an unexpanded form. The invention also relates to a method for producing said moulded body.

L'invention concerne un corps moulé qui contient une matière plastique et est renforcé par des fibres naturelles. Ce corps moulé est produit à partir de matières fibreuses végétales ou animales contenant de l'eau résiduelle, au moins une matière thermoplastique ou thermodurcissable et au moins un biopolymère et/ou un biomonomère à rétention d'eau par déformation plastique ou thermoplastique à haute température et/ou à haute pression puis par façonnage, de préférence, par extrusion. Malgré une teneur d'eau résiduelle de 0,3 à 8 % en poids, le corps moulé se présente sous une forme non expansée. L'invention concerne également son procédé de production.

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