Papermaking process and composition for the production of...

D - Textiles – Paper – 21 – H

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92/33, 9/51

D21H 11/16 (2006.01) D21H 13/40 (2006.01) D21J 5/00 (2006.01) D21J 7/00 (2006.01)

Patent

CA 1286060

ABSTRACT OF THE DISCLOSURE The process for producing a tridimensional piece from an aqueous suspension containing at least a thermoplastic resin and reinforcing fibers, comprises the following steps: a) the elements of the suspension are wet-molded into a preform in a mold, said preform having, in the three dimensions, the general outline of the final piece; b) the preform is then at least partly de-watered; c) then the preform is pre-heated to a temperature higher than the melting point of the thermoplastic resin; d) the preform is then molded under pressure into its final shape in a press heated to a temperature below the melting point of the thermoplastic resin.

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