Hollow composite products and method for making same

A hollow composite product comprising over 20 % glass in the form of long fibres, the thickness of the product walls further ranging between about 1 and 10 mm. Also disclosed is a method for making the product, which consists in inserting in a mould (10) a preheated assembly (9) comprising in its co...

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Bibliographische Detailangaben
Hauptverfasser:	ZANELLA, GUY, DUFAYARD, GILBERT
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A hollow composite product comprising over 20 % glass in the form of long fibres, the thickness of the product walls further ranging between about 1 and 10 mm. Also disclosed is a method for making the product, which consists in inserting in a mould (10) a preheated assembly (9) comprising in its core at least an inflatable pocket covered with at least a composite structure, the composite structure including at least a filler material in the form of long fibres and the preheated assembly including a material capable of creeping, and in inflating the inflatable pocket under pressure higher than 40 bar.