MULITLAYER THERMOPLASTIC STRUCTURE FOR GAS TANK

The invention concerns a multilayer thermoplastic structure, the use of said structure for making a tank and a tank comprising said structure. The inventive multilayer thermoplastic structure comprises at least a layer consisting of an ethylene-vinyl alcohol copolymer having a density ranging betwee...

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Bibliographische Detailangaben
Hauptverfasser:	JOUSSE, FRANCK, MAZABRAUD, PHILIPPE, ICARD, BEATRICE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING OF DISTRIBUTING GASES OR LIQUIDS TRANSPORTING VEHICLES IN GENERAL VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention concerns a multilayer thermoplastic structure, the use of said structure for making a tank and a tank comprising said structure. The inventive multilayer thermoplastic structure comprises at least a layer consisting of an ethylene-vinyl alcohol copolymer having a density ranging between 0.94 and 1.4, and a melt index ranging between 1.3 and 4.2 g/10 minutes at a temperature ranging between 170 and 240 DEG C. Said structure is useful for making gas tanks. La présente invention se rapporte à une structure thermoplastique multicouches, à l'utilisation de ladite structure pour la fabrication d'un réservoir et à un réservoir comprenant ladite structure. Structure thermoplastique multicouches de laprésente invention comprend au moins une couche constituée d'un copolymère éthylène-alcool vinylique ayant une densité comprise entre 0,94 et 1,4 et un indice de fluidité compris entre 1,3 et 4,2 g/10 minutes à une température comprise entre 170 et 240 DEG C.Elle permet la fabrication de réservoirs à gaz.