METHOD FOR PREPARING AN IMPREGNATED FIBROUS MATERIAL BY REACTIVE PULTRUSION

METHOD FOR PREPARING AN IMPREGNATED FIBROUS MATERIAL BY REACTIVE PULTRUSION

A method for manufacturing at least one impregnated fibrous material including a fibrous material made of continuous fibers and at least one thermoplastic polymer, the method including a step of impregnating the at least one fibrous material in a pultrusion head by injecting a reactive composition i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CAUSIER, Adrian, BOUCHERES, Thomas, DEYRAIL, Yves, HOCHSTETTER, Gilles
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
MAKING GRANULES OR PREFORMS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED
RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
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Beschreibung
Zusammenfassung:A method for manufacturing at least one impregnated fibrous material including a fibrous material made of continuous fibers and at least one thermoplastic polymer, the method including a step of impregnating the at least one fibrous material in a pultrusion head by injecting a reactive composition in the melt state including at least one precursor of the thermoplastic polymer in the presence of the fibrous material, the at least one fibrous material on entry into the pultrusion head being divided in its thickness into layers, with each layer circulating in its own channel within the pultrusion head, the reactive composition being injected into each channel and/or between the layers when they are recombined at the exit from each channel, the channel being heated, in which the precursors of the thermoplastic polymer are at least partly polymerized.