NOVEL SHAPING PROCESS FOR PMI FOAM MATERIALS AND/OR COMPOSITE COMPONENTS PRODUCED THEREFROM

The present invention relates to a novel method which is suitable, for example, for producing composite materials with cores made from hard foams. It is the advantage of the invention here that both the foam material and the plastic of the top layer can be selected freely. In particular, the present...

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Bibliographische Detailangaben
Hauptverfasser:	PINTO, JORGE, SUNDERMANN, JORN DANIEL, SCHLAGER, DIETER, ROTH, MATTHIAS ALEXANDER, KRAATZ, ARNIM, ZIMMERMANN, RAINER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF 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:	The present invention relates to a novel method which is suitable, for example, for producing composite materials with cores made from hard foams. It is the advantage of the invention here that both the foam material and the plastic of the top layer can be selected freely. In particular, the present method can also be used to process top layers, the processing temperature of which differs clearly from those of the core material. Furthermore, the present invention relates to a method, by way of which integral foam structures can be compressed partially in a second embodiment. It is possible by way of a third embodiment to produce a hollow body with particularly high-quality joints from at least two workpieces of a foam by welding. This can take place here with or without top layers. Moreover, it is particularly satisfactorily possible by way of the present method to process foam materials by means of a vacuum moulding process. La présente invention concerne un nouveau procédé adapté par exemple pour produire des matériaux composites comprenant des noyaux en matériaux expansés durs. L'avantage de l'invention est que le matériau expansé de même que la matière plastique de la couche de recouvrement peuvent être choisis librement. En particulier, le présent procédé permet de façonner également des couches de recouvrement dont la température de façonnage est nettement différente de celle du matériau du noyau. En outre, la présente invention concerne un procédé qui, dans un deuxième mode de réalisation, permet de densifier partiellement des systèmes de mousses structurés constitués d'un seul tenant. Un troisième mode de réalisation permet de réaliser par soudage d'au moins deux pièces en mousse un corps creux qui possède des joints particulièrement performants, et ce avec ou sans couches de recouvrement. De plus, le présent procédé permet de manière particulièrement aisée de façonner des matériaux expansés en utilisant un procédé de formage sous vide.